id large_stringlengths 9 16 | title large_stringlengths 1 382 | abstract large_stringlengths 3 6.09k | publish_date date32 | update_date date32 | categories large listlengths 1 13 | authors large_stringlengths 3 62.8k |
|---|---|---|---|---|---|---|
gr-qc/9510013 | Normal frames for non-Riemannian connections | The principal properties of geodesic normal coordinates are the vanishing of
the connection components and first derivatives of the metric components at
some point. It is well-known that these hold only at points where the
connection has vanishing torsion and non-metricity. However, it is shown that
normal frames, poss... | 1995-10-09 | 2010-04-06 | [
"gr-qc"
] | David Hartley, (GMD - German National Research Center for Information
Technology, St. Augustin, Germany) |
gr-qc/9510011 | Radiation from the extremal black holes | The radiation from extreme Reissner-Nordstr\"{o}m black holes is computed by
explicitly considering the collapse of a spherical charged shell. No neutral
scalar radiation is found but there is emission of charged particles, provided
the charge to mass ratio be different from one. The absence of thermal effects
is in ac... | 1995-10-06 | 2009-10-28 | [
"gr-qc"
] | Luciano Vanzo |
gr-qc/9510010 | Application of gradient expansion to non-linear gravitational wave in
plane-symmetric universe | As an application of Gradient Expansion (long-wavelength) approximation, we
studied the inhomogeneous universe including the gravitational wave(GW). For a
plane-symmetric cosmological model, we could implement the 2nd order expansion
and analyze the purely non-linear perturbation of GW. The result indicates that
the no... | 1995-10-06 | 2009-10-28 | [
"gr-qc",
"astro-ph"
] | Atsushi Taruya and Yasusada Nambu |
gr-qc/9510009 | Solutions of the Einstein equations with matter | Recent results on solutions of the Einstein equations with matter are
surveyed and a number of open questions are stated. The first group of results
presented concern asymptotically flat spacetimes, both stationary and
dynamical. Then there is a discussion of solutions of the equations describing
matter in special rela... | 1995-10-05 | 2007-05-23 | [
"gr-qc"
] | Alan D. Rendall |
gr-qc/9510005 | Statistical Mechanics of Charged Particles in Einstein-Maxwell-Scalar
Theory | We consider an $N$-body system of charged particle coupled to gravitational,
electromagnetic, and scalar fields. The metric on moduli space for the system
can be considered if a relation among the charges and mass is satisfied, which
includes the BPS relation for monopoles and the extreme condition for charged
black ho... | 1995-10-04 | 2014-11-17 | [
"gr-qc"
] | Kiyoshi Shiraishi (Akita Junior College) and Takuya Maki (Kitasato
Univ.) |
gr-qc/9510008 | Strong Energy Condition in $R + R^2$ Gravity | In this paper, we study Raychaudhuri's equation in the background of $R +
\beta R^2$ gravity with a phenomenological matter ($\rho \propto a(t)^{-n}$).
We conclude that even though the Strong Energy Condition (S.E.C.) for
Einstein's gravity, which guarantees singularity, is $n\geq 2$ for $\rho
\propto a(t)^{-n}$, a per... | 1995-10-04 | 2011-09-09 | [
"gr-qc"
] | J.H. Kung |
gr-qc/9510006 | Topology and Time Reversal | In this lecture we address some topological questions connected with the
existence on a general spacetime manifold of diffeomorphisms connected to the
identity which reverse the time-orientation. | 1995-10-04 | 2007-05-23 | [
"gr-qc"
] | Andrew Chamblin and G.W. Gibbons (DAMTP, Cambridge) |
gr-qc/9510007 | On Quantum-Geometric Connections and Propagators in Curved Spacetime | The basic properties of Poincare gauge invariant Hilbert bundles over
Lorentzian manifolds are derived. Quantum connections are introduced in such
bundles, which govern a parallel transport that is shown to satisfy the strong
equivalence principle in the quantum regime. Path-integral expressions are
presented for boson... | 1995-10-04 | 2009-10-28 | [
"gr-qc",
"hep-th"
] | Eduard Prugovecki (Department of Mathematics, University of Toronto,
Toronto, ON, Canada) |
gr-qc/9510003 | Nucleation of vacuum phase transitions by topological defects | The Euclidean action is calculated in the thin-wall approximation for a
first-order vacuum phase transition in which the bubble appears symmetrically
around either a global monopole or a gauge cosmic string. The bubble is assumed
to be much larger than the core size of the monopole or string. In both cases
the value of... | 1995-10-03 | 2009-10-28 | [
"gr-qc"
] | William A. Hiscock (Montana State University) |
gr-qc/9510004 | Comment on Ricci Collineations of Static Spherically Symmetric
Spacetimes | We present a counter example to a theorem given by Amir {\em et al.} J. Math.
Phys. {\bf 35}, 3005 (1994). We also comment on a misleading statements of the
same reference. | 1995-10-03 | 2009-10-28 | [
"gr-qc"
] | R. Bertolotti, G. Contreras, L. A. N\'u\~nez, U. Percoco (University
of Los Andes, M\`erida, Venezuela) and J.Carot (Universitat de les Illes
Baleares, Mallorca, Espa\~na) |
gr-qc/9510002 | Stochastic Theory of Accelerated Detectors in a Quantum Field | We analyze the statistical mechanical properties of n-detectors in arbitrary
states of motion interacting with each other via a quantum field. We use the
open system concept and the influence functional method to calculate the
influence of quantum fields on detectors in motion, and the mutual influence of
detectors via... | 1995-10-03 | 2009-10-28 | [
"gr-qc",
"atom-ph",
"hep-th",
"quant-ph"
] | Alpan Raval, B.L. Hu and James Anglin |
gr-qc/9510001 | Is there analogy between quantized vortex and black hole? | An attempt is made to promote an analogy between quantized vortex in
condensed matter and black hole: both compact objects have fermion zero modes
which induce the finite temperature of these objects. The motion of the
quantized vortex lines in Fermi superfluids and superconductors leads to the
spectral flow of fermion... | 1995-10-02 | 2009-09-25 | [
"gr-qc"
] | G.E. Volovik (Low Temperature Laboratory, Helsinki University of
Technology, Finland and L.D. Landau Institute for Theoretical Physics,
Moscow, Russia) |
gr-qc/9509059 | Implementing Markov's Limiting Curvature Hypothesis | The effective action for gravity at high curvatures is likely to contain
higher derivative terms. These corrections may have profound consequences for
the singularity structure of space-time and for early Universe cosmology. In
this contribution, recent work is reviewed which demonstrates that it is
possible to constru... | 1995-10-01 | 2007-05-23 | [
"gr-qc",
"hep-th"
] | Robert H. Brandenberger |
gr-qc/9509060 | Gravitational scattering on a global monopole reexamined | We critically reexamine the gravitational scattering of scalar particles on a
global monopole studied recently. The original investigation of Mazur and
Papavassiliou is extended by considering different couplings of the scalar
field to the space-time curvature and by varying the dimension of the
space-time where the Kl... | 1995-10-01 | 2008-02-03 | [
"gr-qc",
"hep-th"
] | Waldemar Puszkarz |
gr-qc/9509058 | $R + R^2$ Gravity as $R +$ Backreaction | Quadratic theory of gravity is a complicated constraint system. We
investigate some consequences of treating quadratic terms perturbatively
(higher derivative version of backreaction effects). This approach is shown to
overcome some well known problems associated with higher derivative theories,
i.e., the physical grav... | 1995-09-30 | 2016-08-31 | [
"gr-qc",
"hep-th"
] | J.H. Kung |
gr-qc/9509057 | Quantum Field Theory in Curved Spacetime | We review the mathematically rigorous formulation of the quantum theory of a
linear field propagating in a globally hyperbolic spacetime. This formulation
is accomplished via the algebraic approach, which, in essence, simultaneously
admits all states in all possible (unitarily inequivalent) Hilbert space
constructions.... | 1995-09-29 | 2007-05-23 | [
"gr-qc"
] | Robert M. Wald |
gr-qc/9509055 | Internal Time Formalism for Spacetimes with Two Killing Vectors | The Hamiltonian structure of spacetimes with two commuting Killing vector
fields is analyzed for the purpose of addressing the various problems of time
that arise in canonical gravity. Two specific models are considered: (i)
cylindrically symmetric spacetimes, and (ii) toroidally symmetric spacetimes,
which respectivel... | 1995-09-28 | 2009-10-28 | [
"gr-qc"
] | Joseph D. Romano and Charles G. Torre |
gr-qc/9509054 | Strong Decoherence | We introduce a condition for the strong decoherence of a set of alternative
histories of a closed quantum-mechanical system such as the universe. The
condition applies, for a pure initial state, to sets of homogeneous histories
that are chains of projections, generally branch-dependent. Strong decoherence
implies the c... | 1995-09-28 | 2008-02-03 | [
"gr-qc",
"hep-th",
"quant-ph"
] | Murray Gell-Mann (Santa Fe Institute, Los Alamos, University of New
Mexico) and James B. Hartle (University of California, Santa Barbara) |
gr-qc/9509056 | Chronology Protection and Quantized Fields: Complex Automorphic Scalar
Field in Misner Space | The renormalized stress-energy tensor $\langle T_{\mu\nu}\rangle$ of the
quantized complex massless scalar field which obeys the automorphic condition
in Misner space is obtained. It is shown that there exists the special value of
the automorphic parameter for which $\langle T_{\mu\nu}\rangle$ is regular on
the chronol... | 1995-09-28 | 2011-04-15 | [
"gr-qc"
] | Sushkov Sergei |
gr-qc/9509052 | Signature Change at Material Layers and Step Potentials | For a contravariant 4-metric which changes signature from Lorentzian to
Riemannian across a spatial hypersurface, the mixed Einstein tensor is
manifestly non-singular. In Gaussian normal coordinates, the metric contains a
step function and the Einstein tensor contains the Dirac delta function with
support at the juncti... | 1995-09-27 | 2007-05-23 | [
"gr-qc"
] | Sean A. Hayward |
gr-qc/9509053 | Cosmological perturbations and classical change of signature | Cosmological perturbations on a manifold admitting signature change are
studied. The background solution consists in a Friedmann-Lemaitre-Robertson-
Walker (FLRW) Universe filled by a constant scalar field playing the role of a
cosmological constant. It is shown that no regular solution exist satisfying
the junction co... | 1995-09-27 | 2009-10-28 | [
"gr-qc"
] | Jerome Martin |
gr-qc/9509050 | Quantum information and information loss in General Relativity | When it comes to performing thought experiments with black holes,
Einstein-Bohr like discussions have to be re-opened. For instance one can ask
what happens to the quantum state of a black hole when the wave function of a
single ingoing particle is replaced by an other one that is orthogonal to the
first, while keeping... | 1995-09-26 | 2007-05-23 | [
"gr-qc"
] | G. 't Hooft |
gr-qc/9509051 | Diffeomorphism invariant eigenvalue problem for metric perturbations in
a bounded region | We suggest a method of construction of general diffeomorphism invariant
boundary conditions for metric fluctuations. The case of $d+1$ dimensional
Euclidean disk is studied in detail. The eigenvalue problem for the Laplace
operator on metric perturbations is reduced to that on $d$-dimensional vector,
tensor and scalar ... | 1995-09-26 | 2009-10-28 | [
"gr-qc",
"hep-th"
] | Valeri Marachevsky and Dmitri Vassilevich |
gr-qc/9509044 | Unified Analysis of Cosmological Perturbations in Generalized Gravity | In a class of generalized Einstein's gravity theories we derive the equations
and general asymptotic solutions describing the evolution of the perturbed
universe in unified forms. Our gravity theory considers general couplings
between the scalar field and the scalar curvature in the Lagrangian, thus
includes broad clas... | 1995-09-25 | 2009-10-28 | [
"gr-qc",
"astro-ph",
"hep-th"
] | J. Hwang |
gr-qc/9509048 | Some applications of differential topology in general relativity | Recently, there have been several applications of differential and algebraic
topology to problems concerned with the global structure of spacetimes. In this
paper, we derive obstructions to the existence of spin-Lorentz and pin-Lorentz
cobordisms and we show that for compact spacetimes with non-empty boundary
there is ... | 1995-09-25 | 2015-06-25 | [
"gr-qc"
] | Andrew Chamblin (DAMTP, Cambridge) |
gr-qc/9509046 | Topology and Causal Structure | We investigate the causal structure of spacetimes $(M, g)$ for which the
metric $g$ is singular on a set of points. | 1995-09-25 | 2008-02-03 | [
"gr-qc"
] | Andrew Chamblin |
gr-qc/9509045 | Thermodynamic Features of Black Holes Dressed with Quantum Fields | The thermal properties of black holes in the presence of quantum fields can
be revealed through solutions of the semi-classical Einstein equation. We
present a brief but self-contained review of the main features of the
semi-classical back reaction problem for a black hole in the microcanonical
ensemble. The solutions,... | 1995-09-25 | 2022-04-13 | [
"gr-qc"
] | David Hochberg |
gr-qc/9509043 | Four Dimensional Elasticity and General Relativity | It has been shown that the extension of the elasticity theory in more than
three dimensions allows a description of space-time as a properly stressed
medium, even recovering the Minkowski metric in the case of uniaxial stress.
The fundamental equation for the metric in the theory is shown to be the
equilibrium equation... | 1995-09-25 | 2008-02-03 | [
"gr-qc"
] | A. Tartaglia (Dip. Fisica, Politecnico; Turin, Italy) |
gr-qc/9509047 | On the interpretation of time-reparametrization-invariant quantum
mechanics | The classical and quantum dynamics of simple time-reparametrization-
invariant models containing two degrees of freedom are studied in detail.
Elimination of one ``clock'' variable through the Hamiltonian constraint leads
to a description of time evolution for the remaining variable which is
essentially equivalent to t... | 1995-09-25 | 2009-10-28 | [
"gr-qc",
"hep-th"
] | Ian D. Lawrie, Richard J. Epp |
gr-qc/9509039 | On the Obstructions to non-Cliffordian Pin Structures | We derive the topological obstructions to the existence of non-Cliffordian
pin structures on four-dimensional spacetimes. We apply these obstructions to
the study of non-Cliffordian pin-Lorentz cobordism. We note that our method of
derivation applies equally well in any dimension and in any signature, and we
present a ... | 1995-09-22 | 2015-06-25 | [
"gr-qc"
] | Andrew Chamblin (DAMTP, Cambridge) |
gr-qc/9509042 | Coincidence detection of broadband signals by networks of the planned
interferometric gravitational wave detectors | We describe how the six planned detectors (2 LIGOs, VIRGO, GEO, AIGO, TAMA)
can be used to perform coincidence experiments for the detection of broadband
signals from either coalescing compact binaries or burst sources. We make
comparisons of the achievable sensitivities of these detectors under different
optical confi... | 1995-09-22 | 2007-05-23 | [
"gr-qc"
] | Biplab Bhawal and S.V. Dhurandhar |
gr-qc/9509040 | Quantum Potential Approach to Class of Cosmological Models | In this paper we discuss the quantum potential approach of Bohm in the
context of quantum cosmological model. This approach makes it possible to
convert the wavefunction of the universe to a set of equations describing the
time evolution of the universe. Following Ashtekar et.\ al., we make use of
quantum canonical tra... | 1995-09-22 | 2009-10-28 | [
"gr-qc"
] | Arkadiusz Blaut and Jerzy Kowalski-Glikman |
gr-qc/9509041 | Quantization of 2+1 Gravity on the Torus | We use the polygon representation of 2+1--dimensional gravity to explicitly
carry out the canonical quantization of a universe with the topology of a
torus. The mapping-class-invariant wave function for a quantum ''big bounce'',
is reminiscent of the interference patterns of linear gratings. We consider the
``problem o... | 1995-09-22 | 2007-05-23 | [
"gr-qc"
] | A. Criscuolo, H. Quevedo and H. Waelbroeck (Instituto de Ciencias
Nucleares, UNAM, Mexico) |
gr-qc/9509037 | Time and Time Functions in Parametrized Non-Relativistic Quantum
Mechanics | The ``evolving constants'' method of defining the quantum dynamics of
time-reparametrization-invariant theories is investigated for a particular
implementation of parametrized non-relativistic quantum mechanics (PNRQM). The
wide range of time functions that are available to define evolving constants
raises issues of in... | 1995-09-21 | 2009-10-28 | [
"gr-qc",
"hep-th",
"quant-ph"
] | James B. Hartle (University of California, Santa Barbara) |
gr-qc/9509036 | A Bisognano-Wichmann-like Theorem in a Certain Case of a Non Bifurcate
Event Horizon related to an Extreme Reissner-Nordstr\"om Black Hole | Thermal Wightman functions of a massless scalar field are studied within the
framework of a ``near horizon'' static background model of an extremal R-N
black hole. This model is built up by using global Carter-like coordinates over
an infinite set of Bertotti-Robinson submanifolds glued together. The
analytical extendi... | 1995-09-21 | 2009-10-28 | [
"gr-qc",
"hep-th"
] | Valter Moretti (Dept. Phys. Univ. Trento), Stefan Steidl (Dept. Phys.
Univ. Innsbruck) |
gr-qc/9509035 | Geodesic and Path Motion in the Nonsymmetric Gravitational Theory | We study the problem of test-particle motion in the Nonsymmetric
Gravitational Theory (NGT) assuming the four-velocity of the particle is
parallel-transported along the trajectory. The predicted motion is studied on a
static, spherically symmetric background field, with particular attention paid
to radial and circular ... | 1995-09-21 | 2011-02-21 | [
"gr-qc"
] | J. Legare and J. W. Moffat |
gr-qc/9509038 | Singularities in a Scalar Field Quantum Cosmology | The quantum theory of a spatially flat Friedmann-Robertson-Walker universe
with a massless scalar field as source is further investigated. The classical
model is singular, and in the framework of the Arnowitt-Deser-Misner canonical
quantization formalism a discussion is made of the cosmic evolution,
particularly of the... | 1995-09-21 | 2009-10-28 | [
"gr-qc"
] | Nivaldo A. Lemos (Center for Theoretical Physics, MIT) |
gr-qc/9509034 | Energy and momentum of cylindrical gravitational waves. II | Recently Nathan Rosen and the present author obtained the energy and momentum
densities of cylindrical gravitational waves in Einstein's prescription and
found them to be finite and reasonable. In the present paper we calculate the
same in prescriptions of Tolman as well as Landau and Lifshitz and discuss the
results. | 1995-09-21 | 2009-10-28 | [
"gr-qc",
"astro-ph",
"hep-th"
] | K. S. Virbhadra |
gr-qc/9509033 | Gravitational and electromagnetic fields of a charged tachyon | An axially symmetric exact solution of the Einstein-Maxwell equations is
obtained and is interpreted to give the gravitational and electromagnetic
fields of a charged tachyon. Switching off the charge parameter yields the
solution for the uncharged tachyon which was earlier obtained by Vaidya. The
null surfaces for the... | 1995-09-21 | 2009-10-28 | [
"gr-qc",
"astro-ph",
"hep-th"
] | K. S. Virbhadra |
gr-qc/9509032 | Comment on the Calculation of the Angular Momentum and Mass for the
(Anti-) Self Dual Charged Spinning $BTZ$ Black Hole | A recent paper [M. Kamata and T. Koikawa, Phys. Lett. {\bf B353} (1995) 196.]
claimed to obtain the charged version of the $(2+1)$-dimensional spinning $BTZ$
black hole solution by assuming a (anti-) self dual condition imposed on the
electric and magnetic fields. We point out that the angular momentum and mass
diverge... | 1995-09-20 | 2009-10-28 | [
"gr-qc"
] | Kevin C.K. Chan (University of Waterloo) |
gr-qc/9509031 | Quenched Hawking Radiation and the Black Hole Pair-Creation Rate | The main topic of this talk is the Hawking effect when the black holes in
question are undergoing a uniform acceleration. The semiclassical effect of the
acceleration is most striking when the Hawking temperature equals the
acceleration temperature. Within the usual late-time approximation, the natural
black hole vacuu... | 1995-09-19 | 2007-05-23 | [
"gr-qc",
"hep-th"
] | Piljin Yi |
gr-qc/9509030 | Solutions of Maxwell Equations for Hollow curved Wave Conductor | In the present paper the idea is proposed to solve Maxwell equations for a
curved hollow wave conductor by means of effective Riemannian space, in which
the lines of motion of fotons are isotropic geodesies for a 4-dimensional
space-time. The algorithm of constructing such a metric and curvature tensor
components are w... | 1995-09-18 | 2007-05-23 | [
"gr-qc"
] | V. Bashkov, A. Tchernomorov |
gr-qc/9509029 | Gauge Fields with Quasinilpotent Gauge Group | We investigate non-linear generalization of Maxwell theory of electromagnetic
field keeping the gauge invariance of Lagrangian. New theory, which is standard
Yang-Mills theory, is based on Harmonic Oscillator HO(4,R) gauge group. It's a
solvable Lie group with nilpotent normal subgroup of codimension 1. We write
down t... | 1995-09-18 | 2007-05-23 | [
"gr-qc"
] | Arthur M. Aslanyan |
gr-qc/9509028 | A Hamiltonian Formulation of Nonsymmetric Gravitational Theories | The dynamics of a class of nonsymmetric gravitational theories is presented
in Hamiltonian form. The derivation begins with the first-order action,
treating the generalized connection coefficients as the canonical coordinates
and the densitised components of the inverse of the fundamental tensor as
conjugate momenta. T... | 1995-09-15 | 2009-10-28 | [
"gr-qc"
] | M.A. Clayton |
gr-qc/9509027 | On the Evolution of Scalar Metric Perturbations in an Inflationary
Cosmology | We further clarify how scalar metric perturbations are amplified in an
inflationary cosmology. We first construct a simple, analytic model of an
inflationary cosmology in which the expansion scale factor evolves continuously
from an inflationary era to a radiation-dominated era. From this model, it is
clear to see how ... | 1995-09-15 | 2009-10-28 | [
"gr-qc",
"astro-ph"
] | R. R. Caldwell |
gr-qc/9509026 | On Relativistic Material Reference Systems | This work closes certain gaps in the literature on material reference systems
in general relativity. It is shown that perfect fluids are a special case of
DeWitt's relativistic elastic media and that the velocity--potential formalism
for perfect fluids can be interpreted as describing a perfect fluid coupled to
a fleet... | 1995-09-14 | 2009-10-28 | [
"gr-qc"
] | J. David Brown and Donald Marolf |
gr-qc/9509025 | Symmetries of pp-Waves with Distributional Profile | We generalize the classification of (non-vacuum) pp-waves \cite{JEK} based on
the Killing-algebra of the space-time by admitting distribution-valued profile
functions. Our approach is based on the analysis of the (infinite-dimensional)
group of ``normal-form-preserving'' diffeomorphisms. | 1995-09-14 | 2009-10-28 | [
"gr-qc"
] | P.C.Aichelburg and H.Balasin |
gr-qc/9509024 | Statistical Mechanics and Black Hole Entropy | I review a new (and still tentative) approach to black hole thermodynamics
that seeks to explain black hole entropy in terms of microscopic quantum
gravitational boundary states induced on the black hole horizon. | 1995-09-13 | 2008-02-03 | [
"gr-qc",
"hep-th"
] | S. Carlip |
gr-qc/9509023 | Spontaneous Symmetry Breaking of Rapidly Rotating Stars in General
Relativity | We investigate the effects of general relativity upon the non-axisymmetric
``bar'' mode secular instability of rapidly rotating stars, i.e. the
relativistic and compressible analog of the transition from Maclaurin spheroids
to Jacobi ellipsoids. Our method consists in perturbing a stationary
axisymmetric configuration,... | 1995-09-12 | 2009-10-28 | [
"gr-qc",
"astro-ph"
] | S. Bonazzola, J. Frieben, E. Gourgoulhon (Observatoire de Paris, CNRS) |
gr-qc/9509022 | Stars of WIMPs | A class of boson-fermion stars, whose spin-0 and spin-1/2 constituents
interact through a U(1) current-current term in the Lagrangian density, is
analysed. It is shown that it describes the low-energy behavior of a system of
weakly interacting massive particles (WIMPs) from the leptonic sector of the
minimal supersymme... | 1995-09-11 | 2009-10-28 | [
"gr-qc"
] | F. Pisano and J. L. Tomazelli |
gr-qc/9509021 | Gauge-invariance in one-loop quantum cosmology | We study the problem of gauge-invariance and gauge-dependence in one-loop
quantum cosmology. We formulate some requirements which should be satisfied by
boundary conditions in order to give gauge-independent path integral. The case
of QED is studied in some detail. We outline difficulties in gauge-invariant
quantizatio... | 1995-09-09 | 2007-05-23 | [
"gr-qc"
] | Dmitri V. Vasilevich |
gr-qc/9509020 | Black hole collisions from Brill-Lindquist initial data: predictions of
perturbation theory | The Misner initial value solution for two momentarily stationary black holes
has been the focus of much numerical study. We report here analytic results for
an astrophysically similar initial solution, that of Brill and Lindquist (BL).
Results are given from perturbation theory for initially close holes and are
compare... | 1995-09-09 | 2009-10-28 | [
"gr-qc"
] | A.M. Abrahams and R.H. Price |
gr-qc/9509017 | String Gravity and Cosmology: Some new ideas | String theory provides the only consistent framework so far that unifies all
interactions including gravity. We discuss gravity and cosmology in string
theory. Conventional notions from general relativity like geometry, topology
etc. are well defined only as low energy approximations in string theory. At
small distance... | 1995-09-08 | 2007-05-23 | [
"gr-qc"
] | Elias Kiritsis and Costas Kounnas |
gr-qc/9509016 | Renormalization Group Calculation of the Galaxy-Galaxy Correlation
Function | The observable Universe is described by a collection of equal mass galaxies
linked into a common unit by their mutual gravitational interaction. The
partition function of this system is cast in terms of Ising model spin
variables and maps exactly onto a three-dimensional stochastic scalar classical
field theory. The fu... | 1995-09-08 | 2007-05-23 | [
"gr-qc"
] | J. P\'erez-Mercader, T. Goldman, D. Hochberg and R. Laflamme |
gr-qc/9509018 | On Pseudospherically Symmetric Repulsive Gravitational Field | Solutions of Einstein vacuum equations, for a static pseudospherically
symmetric system, are presented. They describe a naked singularity and a
singular solution with many resemblances to the Schwartzschild solution but
with two major differences: its static region, lying inside the null horizon,
sees the singularity, ... | 1995-09-08 | 2009-09-25 | [
"gr-qc"
] | Luis A. Anchordoqui, Graciela S. Birman, Jose D. Edelstein and Carlos
N\'u\~nez |
gr-qc/9509019 | Variable rest masses in 5-dimensional gravitation confronted with
experimental data | Cosmological solutions of Einstein equation for a \mbox{5-dimensional}
space-time, in the case of a dust-filled universe, are presented. With these
solutions we are able to test a hypothetical relation between the rest mass of
a particle and the $5^{\rm th}$ dimension. Comparison with experiment strongly
refutes the im... | 1995-09-08 | 2009-10-28 | [
"gr-qc"
] | Luis Anchordoqui, Graciela Birman, Santiago Perez Bergliaffa and
H\'ector Vucetich |
gr-qc/9509015 | Renormalization of the charged scalar field in curved space | The DeWitt-Schwinger proper time point-splitting procedure is applied to a
massive complex scalar field with arbitrary curvature coupling interacting with
a classical electromagnetic field in a general curved spacetime. The scalar
field current is found to have a linear divergence. The presence of the
external backgrou... | 1995-09-07 | 2009-10-28 | [
"gr-qc"
] | Rhett Herman and William A. Hiscock (Montana State University) |
gr-qc/9509014 | Unified Relativistic Physics from a Standing Wave Particle Model | An extremely simple and unified base for physics comes out by starting all
over from a single postulate on the common nature of matter and stationary
forms of radiation quanta. Basic relativistic, gravitational (G) and quantum
mechanical properties of a standing wave particle model have been derived. This
has been done... | 1995-09-07 | 2007-05-23 | [
"gr-qc",
"astro-ph",
"quant-ph"
] | Rafael A. Vera |
gr-qc/9509006 | Density Fluctuations in Inflationary Models with Multiple Scalar Fields | Making use of the primordially isocurvature fluctuations, which are generated
in inflationary models with multiple scalar fields, we make a phenomenological
model that predicts formation of primordial black holes which can account for
the massive compact halo objects recently observed. | 1995-09-06 | 2007-05-23 | [
"gr-qc"
] | Jun'ichi Yokoyama (YITP Uji Research Center, Kyoto U.) |
gr-qc/9509012 | Formation of Black Holes from Collapsed Cosmic String Loops | The fraction of cosmic string loops which collapse to form black holes is
estimated using a set of realistic loops generated by loop fragmentation. The
smallest radius sphere into which each cosmic string loop may fit is obtained
by monitoring the loop through one period of oscillation. For a loop with
invariant length... | 1995-09-06 | 2009-10-28 | [
"gr-qc",
"astro-ph"
] | R. R. Caldwell & Paul Casper |
gr-qc/9509010 | Pair creation rate for $U(1)^2$ black holes | I consider a truncation of low-energy string theory which contains two $U(1)$
gauge fields. After making some general comments on the theory, I describe a
previously-obtained instanton for the pair creation of black holes when both
gauge fields are non-zero, and obtain the pair creation rate by calculating its
action. ... | 1995-09-06 | 2009-10-28 | [
"gr-qc",
"hep-th"
] | Simon F. Ross |
gr-qc/9509009 | Gravitational Instantons in Ashtekar's Formalism | Gravitational instantons of Bianchi type IX space are constructed in
Ashtekar's canonical formalism. Instead of solving the self-duality condition,
we fully solve the constraint on the ``initial surface'' and ``Hamiltonian
equations''. This formalism is applicable to the matter coupled system with
cosmological constant... | 1995-09-06 | 2015-06-25 | [
"gr-qc"
] | H.Ishihara, H.Kubotani and T.Fukuyama |
gr-qc/9509011 | Black Holes with Weyl Charge and Non-Riemannian Waves | A simple modification to Einstein's theory of gravity in terms of a
non-Riemannian connection is examined. A new tensor-variational approach yields
field equations that possess a covariance similar to the gauge covariance of
electromagnetism. These equations are shown to possess solutions analogous to
those found in th... | 1995-09-06 | 2014-11-17 | [
"gr-qc"
] | Robin W Tucker, Charles Wang |
gr-qc/9509013 | The variational theory of perfect fluid with intrinsic hypermomentum in
space-time with nonmetricity | The variational theory of the perfect fluid with an intrinsic hypermomentum
is developed. The Lagrangian density of such fluid is stated and the equations
of motion of the fluid and the evolution equation of the hypermomentum tensor
are derived. The expressions of the matter currents of the fluid (the metric
stress-ene... | 1995-09-06 | 2007-05-23 | [
"gr-qc"
] | O. V. Babourova, B. N. Frolov (Department of Mathematics, Moscow State
Pedagogical University) |
gr-qc/9509007 | Hamiltonian Structure of a Friedmann-Robertson-Walker Universe with
Torsion | We study a $R^{2}$ model of gravity with torsion in a closed
Friedmann-Robertson-Walker universe. The model is cast in Hamiltonian form
subtracting from the original Lagrangian the total time derivative of
$f_{K}f_{R}$, where $f_{K}$ is proportional to the trace of the extrinsic
curvature tensor, and $f_{R}$ is obtaine... | 1995-09-06 | 2008-11-26 | [
"gr-qc"
] | Giampiero Esposito |
gr-qc/9509008 | Hamilton-Jacobi Equation for Brans-Dicke Theory and Its Long-wavelength
Solution | Hamilton-Jacobi equation for Brans-Dicke theory is solved by using a
long-wavelength approximation. We examine the non-linear evolution of the
inhomogeneities in the dust fluid case and the cosmological constant case. In
the case of dust fluid, it turns out that the inhomogeneities of space-time
grow. In the case of co... | 1995-09-06 | 2009-10-28 | [
"gr-qc"
] | Jiro Soda, Hideki Ishihara and Osamu Iguchi |
gr-qc/9509005 | Micro--universes and ``strong black holes'': a purely geometric approach
to elementary particles | We present here a panoramic view of our unified, bi--scale theory of
gravitational and strong interactions [which is mathematically analogous to the
last version of N.Rosen's bi--metric theory; and yields physical results
similar to strong gravity's]. This theory, developed during the last 15 years,
is purely geometric... | 1995-09-04 | 2009-09-25 | [
"gr-qc"
] | E. Recami, F. Raciti, W.A. Rodrigues Jr., and V.T. Zanchin |
gr-qc/9509004 | The Singularity Problem for Space-Times with Torsion | The problem of a rigorous theory of singularities in space-times with torsion
is addressed. We define geodesics as curves whose tangent vector moves by
parallel transport. This is different from what other authors have done,
because their definition of geodesics only involves the Christoffel connection,
though studying... | 1995-09-03 | 2008-11-26 | [
"gr-qc"
] | Giampiero Esposito |
gr-qc/9509003 | Inflationary Solutions in Quantum Cosmology | We prove that in the Hartle-Hawking approach to quantum cosmology the
existence of an inflationary phase is a general property of minisuperspace
models given by a closed Friedmann-Robertson-Walker universe containing a
massless scalar field with a $\lambda\phi^{n}$ self-interaction. The evolution
in time of the cosmic ... | 1995-09-02 | 2010-04-06 | [
"gr-qc"
] | Giampiero Esposito and Giovanni Platania |
gr-qc/9508067 | Classically Integrable Cosmological Models with a Scalar Field | New classes of classically integrable models in the cosmological theories
with a scalar field are obtained by using freedoms of defining time and fields.
In particular, some models with the sum of exponential potentials in the flat
spatial metric are shown to be integrable. The model with the Sine-Gordon
potential can ... | 1995-09-01 | 2009-10-28 | [
"gr-qc"
] | H. Suzuki, E. Takasugi and Y. Takayama |
gr-qc/9508068 | Absorption Probability of De Sitter Horizon for Massless Fields with
Spin | The evaluation of the absorption coefficients are important for particle
emission caused by Hawking radiation. In the case of cosmological particle
emission from the event horizon in De Sitter space, it is known that the scalar
wave functions are solved in terms of Legendre functions. For fields with
higher spin, the s... | 1995-09-01 | 2016-08-31 | [
"gr-qc"
] | H. Suzuki and E. Takasugi |
gr-qc/9509001 | Anderson Localization in the Sky and Cosmological Magnetic Field | We discuss the Anderson localization of electromagnetic fields in the
fluctuating plasma induced by the gravitational density perturbation before the
recombination time of the Universe. Randomly distributed localized coherent
electromagnetic fields emerge in the thermal equilibrium before the
recombination time. We arg... | 1995-09-01 | 2009-10-28 | [
"gr-qc",
"astro-ph",
"cond-mat"
] | Akio Hosoya and Shiho Kobayashi |
gr-qc/9509002 | MATTERS OF GRAVITY, The newsletter of the APS Topical Group on
Gravitation | Contents:
-Report from the APS Topical Group in Gravitation, Beverly Berger
-Some remarks on the passing of S. Chandrasekhar, Robert Wald
-LIGO Project Status, Syd Meshkov and Stan Whitcomb
-New Hyperbolic forms of the Einstein Equations, Andrew Abrahams
-Massless Black Holes, Gary Horowitz
-A plea for theo... | 1995-09-01 | 2016-08-31 | [
"gr-qc"
] | Jorge Pullin |
gr-qc/9508063 | Two-dimensional dilaton black holes | The two-dimensional CGHS model provides an interesting toy-model for the
study of black hole evaporation. For this model, a quantum effective action,
which incorporates Hawking radiation and backreaction, can be explicitly
constructed. In this paper, we study a generalization of this effective action.
In our extended m... | 1995-08-31 | 2007-05-23 | [
"gr-qc"
] | G. Michaud and R.C. Myers |
gr-qc/9508065 | Gravitational Ionization: Periodic Orbits of Binary Systems Perturbed by
Gravitational Radiation | The long term perturbation of a Newtonian binary system by an incident
gravitational wave is discussed in connection with the issue of gravitational
ionization. The periodic orbits of the planar tidal equation are investigated
and the conditions for their existence are presented. The possibility of
ionization of a Kepl... | 1995-08-31 | 2008-02-03 | [
"gr-qc",
"chao-dyn",
"nlin.CD"
] | C. Chicone, B. Mashhoon and D. Retzloff |
gr-qc/9508064 | The Bekenstein Bound, Topological Quantum Field Theory and Pluralistic
Quantum Field Theory | An approach to quantum gravity and cosmology is proposed based on a synthesis
of four elements: 1) the Bekenstein bound and the related holographic
hypothesis of 't Hooft and Susskind, 2) topological quantum field theory, 3) a
new approach to the interpretational issues of quantum cosmology and 4) the
loop representati... | 1995-08-31 | 2008-02-03 | [
"gr-qc"
] | Lee Smolin |
gr-qc/9508066 | How generic are null spacetime singularities? | The spacetime singularities inside realistic black holes are sometimes
thought to be spacelike and strong, since there is a generic class of solutions
(BKL) to Einsteins equations with these properties. We show that null, weak
singularities are also generic, in the following sense: there is a class of
vacuum solutions ... | 1995-08-31 | 2009-12-30 | [
"gr-qc"
] | Omos Ori and Eanna Flanagan |
gr-qc/9508061 | Linear Form of Canonical Gravity | Recent work in the literature has shown that general relativity can be
formulated in terms of a jet bundle which, in local coordinates, has five
entries: local coordinates on Lorentzian space-time, tetrads, connection
one-forms, multivelocities corresponding to the tetrads and multivelocities
corresponding to the conne... | 1995-08-30 | 2008-11-26 | [
"gr-qc"
] | Giampiero Esposito and Cosimo Stornaiolo |
gr-qc/9508062 | Quantization of the Schwarzschild Black Hole | We quantize by the Dirac - Wheeler-DeWitt method the canonical formulation of
the Schwarzschild black hole developed in a previous paper. We investigate the
properties of the operators that generate rigid symmetries of the Hamiltonian,
establish the form of the invariant measure under the rigid transformations,
and det... | 1995-08-30 | 2015-06-25 | [
"gr-qc"
] | Marco Cavaglia`, Vittorio de Alfaro and Alexandre T. Filippov |
gr-qc/9508060 | Vacuum Energy in Ultralocal metrics for TT tensors with Gaussian Wave
Functionals | We calculate, in a class of Gauge invariant functionals, by variational
methods, the difference of vacuum energy between two different backgrounds:
Schwarzschild and Flat Space. We perform this evaluation in an Hamiltonian
formulation of Quantum Gravity by standard ''$3+1$'' decomposition. After the
decomposition the s... | 1995-08-29 | 2008-02-03 | [
"gr-qc",
"hep-th"
] | Remo Garattini |
gr-qc/9508059 | Applying black hole perturbation theory to numerically generated
spacetimes | Nonspherical perturbation theory has been necessary to understand the meaning
of radiation in spacetimes generated through fully nonlinear numerical
relativity. Recently, perturbation techniques have been found to be successful
for the time evolution of initial data found by nonlinear methods. Anticipating
that such an... | 1995-08-29 | 2009-10-28 | [
"gr-qc"
] | A.M. Abrahams and R.H. Price |
gr-qc/9508054 | Cosmological Implications of a Possible Class of Particles Able to
Travel Faster than Light (abridged version) | Superluminal particles are not excluded by particle physics. The apparent
Lorentz invariance of the laws of physics does not imply that space-time is
indeed minkowskian. Matter made of solutions of Lorentz-invariant equations
would feel a relativistic space-time even if the actual space-time had a quite
different geome... | 1995-08-28 | 2007-05-23 | [
"gr-qc"
] | Luis Gonzalez-Mestres (LAPP Annecy and LPC College de France) |
gr-qc/9508056 | Non-Local Properties in Euclidean Quantum Gravity | In the one-loop approximation for Euclidean quantum gravity, the boundary
conditions which are completely invariant under gauge transformations of metric
perturbations involve both normal and tangential derivatives of the metric
perturbations $h_{00}$ and $h_{0i}$, while the $h_{ij}$ perturbations and the
whole ghost o... | 1995-08-28 | 2022-04-13 | [
"gr-qc"
] | Giampiero Esposito |
gr-qc/9508058 | The Relaxation Effect in Dissipative Relativistic Fluid Theories | The dynamics of the fluid fields in a large class of causal dissipative fluid
theories is studied. It is shown that the physical fluid states in these
theories must relax (on a time scale that is characteristic of the microscopic
particle interactions) to ones that are essentially indistinguishable from the
simple rela... | 1995-08-28 | 2009-10-28 | [
"gr-qc"
] | Lee Lindblom |
gr-qc/9508053 | Geometric Bremsstrahlung in the Early Universe | We discuss photon emission from particles decelerlated by the cosmic
expansion. This can be interpretated as a kind of bremsstrahlung induced by the
Universe geometry. In the high momentum limit its transition probability does
not depend on detailed behavior of the expansion. | 1995-08-28 | 2016-08-15 | [
"gr-qc"
] | T.Futamase (Tohoku Univ.), M.Hotta (Tohoku Univ.), H.Inoue (Tohoku
Univ.), M.Yamaguchi (Tohoku Univ. and Technische Universit\"at M\"unchen) |
gr-qc/9508057 | Entropy of eternal black holes | The entropy of a quantum-statistical system which is classically approximated
by a general stationary eternal black hole is studied by means of a
microcanonical functional integral. This approach opens the possibility of
including explicitly the internal degrees of freedom of a physical black hole
in path integral desc... | 1995-08-28 | 2007-05-23 | [
"gr-qc"
] | Erik A. Martinez |
gr-qc/9508055 | Extreme Cosmic String | This paper deals with the geometry of supermassive cosmic strings. We have
used an approach that enforces the spacetime of cosmic strings to also satisfy
the conservation laws of a cylindric gravitational topological defect, that is
a spacetime kink. In the simplest case of kink number unity, the entire energy
range of... | 1995-08-28 | 2009-10-28 | [
"gr-qc"
] | P.F. Gonzalez-Diaz |
gr-qc/9508052 | Evolutionary Laws, Initial Conditions, and Gauge Fixing in Constrained
Systems | We describe in detail how to eliminate nonphysical degrees of freedom in the
Lagrangian and Hamiltonian formulations of a constrained system. Two important
and distinct steps in our method are the fixing of ambiguities in the dynamics
and the determination of inequivalent initial data. The Lagrangian discussion
is nove... | 1995-08-25 | 2010-04-06 | [
"gr-qc"
] | J M Pons (Univ Barcelona) & L C Shepley (Univ Texas Austin) |
gr-qc/9508051 | Quantum Field Theory on Certain Non-Globally Hyperbolic Spacetimes | We study real linear scalar field theory on two simple non-globally
hyperbolic spacetimes containing closed timelike curves within the framework
proposed by Kay for algebraic quantum field theory on non-globally hyperbolic
spacetimes. In this context, a spacetime (M,g) is said to be `F-quantum
compatible' with a field ... | 1995-08-24 | 2008-11-26 | [
"gr-qc"
] | C.J. Fewster and A. Higuchi |
gr-qc/9508050 | Some Problems of Topology Change Description in the Theory of Space-Time | The problem of topology change description in gravitation theory is analized
in detailes. It is pointed out that in standard four-dimensional theories the
topology of space may be considered as a particular case of boundary conditions
(or constraints). Therefore, the possible changes of space topology in
(3+1)-dimensio... | 1995-08-24 | 2009-10-28 | [
"gr-qc"
] | M.Yu. Konstantinov |
gr-qc/9508049 | Irrotational dust with Div H=0 | For irrotational dust the shear tensor is consistently diagonalizable with
its covariant time derivative: $\sigma_{ab}=0=\dot{\sigma}_{ab},\; a\neq b$, if
and only if the divergence of the magnetic part of the Weyl tensor vanishes:
$div~H = 0$. We show here that in that case, the consistency of the Ricci
constraints re... | 1995-08-23 | 2009-10-28 | [
"gr-qc"
] | W. M. Lesame, G. F. R. Ellis and P. K. S. Dunsby |
gr-qc/9508048 | `Faster than light' photons and rotating black holes | The effective action for QED in curved spacetime includes equivalence
principle violating interactions between the electromagnetic field and the
spacetime curvature. These interactions admit the possibility of superluminal
yet causal photon propagation in gravitational fields. In this paper, we extend
our analysis of p... | 1995-08-22 | 2009-10-28 | [
"gr-qc",
"hep-th"
] | R.D. Daniels and G.M. Shore |
gr-qc/9508047 | Averaging, renormalization group and criticality in cosmology | Several problems in physics, in particular the averaging problem in gravity,
can be described in a formalism derived from the real-space Renormalization
Group (RG) methods. It is shown that the RG flow is provided by the
Ricci-Hamilton equations which are thereby provided with a {\it physical}
interpretation. The conne... | 1995-08-22 | 2007-05-23 | [
"gr-qc"
] | Kamilla Piotrkowska |
gr-qc/9508046 | Fermions in Gravitation Theory | In gravitation theory, a fermion field must be regarded only in a pair with a
certain tetrad gravitational field. These pairs can be represented by sections
of the composite spinor bundle $S\to\Si\to X^4$ where values of gravitational
fields play the role of parameter coordinates, besides the familiar world
coordinates... | 1995-08-21 | 2007-05-23 | [
"gr-qc"
] | G. Sardanashvily |
gr-qc/9508045 | Lattice Quantum Gravity from Stochastic 3-Geometries | I propose the Langevin equation for 3-geometries in the Ashtekar's formalism
to describe 4D Euclidean quantum gravity, in the sense that the corresponding
Fokker-Planck hamiltonian recovers the hamiltonian in 4D quantum gravity
exactly. The stochastic time corresponds to the Euclidean time in the gauge,
N=1 and $N^i=0$... | 1995-08-21 | 2008-02-03 | [
"gr-qc"
] | N. Nakazawa |
gr-qc/9508044 | Boosting the Kerr-geometry into an arbitrary direction | We generalize previous work \cite{BaNa3} on the ultrarelativistic limit of
the Kerr-geometry by lifting the restriction on boosting along the axis of
symmetry. | 1995-08-19 | 2009-10-28 | [
"gr-qc"
] | Herbert Balasin and Herbert Nachbagauer |
gr-qc/9508041 | A renormalization group improved non-local gravitational effective
Lagrangian | Renormalization group techniques are used in order to obtain the improved
non-local gravitational effective action corresponding to any asymptotically
free GUT, up to invariants which are quadratic on the curvature. The
corresponding non-local gravitational equations are written down, both for the
case of asymptoticall... | 1995-08-18 | 2009-09-17 | [
"gr-qc"
] | E. Elizalde and S.D. Odintsov |
gr-qc/9508042 | Nuts have no hair | We show that the Riemannian Kerr solutions are the only Riemannian,
Ricci-flat and asymptotically flat ${\rm C}^{2}$-metrics $g_{\mu\nu}$ on a
4-dimensional complete manifold ${\cal M}$ of topology ${\rm R}^{2} \times {\rm
S}^{2}$ which have (at least) a 1-parameter group of periodic isometries with
only isolated fixed... | 1995-08-18 | 2010-04-06 | [
"gr-qc"
] | Walter Simon |
gr-qc/9508043 | Precis of General Relativity | Omitting the motivations and historical connections, and also the detailed
calculations, I state succinctly the principles that determine the relativistic
idealization of a GPS system. These determine the results that Ashby presents
in his tutorial. | 1995-08-18 | 2007-05-23 | [
"gr-qc"
] | Charles W. Misner (College Park MD) |
gr-qc/9508039 | Classical and quantum geometrodynamics of 2d vacuum dilatonic black
holes | We perform a canonical analysis of the system of 2d vacuum dilatonic black
holes. Our basic variables are closely tied to the spacetime geometry and we do
not make the field redefinitions which have been made by other authors. We
present a careful discssion of asymptotics in this canonical formalism.
Canonical transfor... | 1995-08-16 | 2016-08-31 | [
"gr-qc"
] | Madhavan Varadarajan |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.