text stringlengths 89 2.49k | category stringclasses 19
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NNLO BFKL Pomeron eigenvalue in N=4 SYM: We obtain an analytical expression for the Next-to-Next-to-Leading order of
the Balitsky-Fadin-Kuraev-Lipatov (BFKL) Pomeron eigenvalue in planar SYM N=4
using Quantum Spectral Curve (QSC) integrability based method. The result is
verified with more than 60 digits precision usin... | hep-th |
Quantum properties of the polytopic action in some simple geometries: The partition function corresponding to the "polytopic" action, a new action
for the gravitational interaction which we have proposed recently, is computed
in the simplest two-dimensional geometries of genus zero and one. The
functional integral over... | hep-th |
On the density of states in a free CFT and finite volume corrections: Results from spectral geometry such as Weyl's formula can be used to relate
the thermodynamic properties of a free massless field to the spatial manifold
on which it is defined. We begin by calculating the free energy in two cases:
manifolds posessin... | hep-th |
Hints of Integrability Beyond the Planar Limit: Nontrivial Backgrounds: The problem of computing the anomalous dimensions of a class of (nearly)
half-BPS operators with a large R-charge is reduced to the problem of
diagonalizing a Cuntz oscillator chain. Due to the large dimension of the
operators we consider, non-plan... | hep-th |
Quantum Background Independence of Closed String Field Theory: We prove local background independence of the complete quantum closed string
field theory using the recursion relations for string vertices and the
existence of connections in CFT theory space. Indeed, with this data we
construct an antibracket preserving m... | hep-th |
An explicit construction of Wakimoto realizations of current algebras: It is known from a work of Feigin and Frenkel that a Wakimoto type,
generalized free field realization of the current algebra $\widehat{\cal G}_k$
can be associated with each parabolic subalgebra ${\cal P}=({\cal G}_0+{\cal
G}_+)$ of the Lie algebra... | hep-th |
Electrified branes: A geometrical form of the supersymmetry conditions for D-branes on arbitrary
type II supersymmetric backgrounds is derived, as well as the associated BPS
bounds. The treatment is general and allows to consider, for instance,
non-static configurations or D-branes supporting a non-vanishing electric f... | hep-th |
Simplifying the Tree-level Superstring Massless Five-point Amplitude: We use the pure spinor formalism to obtain the supersymmetric massless
five-point amplitude at tree-level in a streamlined fashion. We also prove the
equivalence of an OPE identity in string theory with a subset of the
Bern-Carrasco-Johansson five-po... | hep-th |
Exploring SU(3) Structure Moduli Spaces with Integrable G2 Structures: We study the moduli space of SU(3) structure manifolds X that form the
internal compact spaces in four-dimensional N=1/2 domain wall solutions of
heterotic supergravity with flux. Together with the direction perpendicular to
the four-dimensional dom... | hep-th |
Universality of the Holographic Angular Momentum Cutoff: The AdS/CFT dual description of a peripheral heavy ion collision involves an
asymptotically AdS rotating black hole. The explicitly known black holes of
this kind, with planar event horizon topology [the "KMV$_0$" spacetimes], have
been shown to be unstable when ... | hep-th |
M(atrix) Theory: Matrix Quantum Mechanics as a Fundamental Theory: A self-contained review is given of the matrix model of M-theory. The
introductory part of the review is intended to be accessible to the general
reader. M-theory is an eleven-dimensional quantum theory of gravity which is
believed to underlie all super... | hep-th |
Boundary K-Matrices for the Six Vertex and the n(2n-1) A_{n-1} Vertex
Models: Boundary conditions compatible with integrability are obtained for two
dimensional models by solving the factorizability equations for the reflection
matrices $K^{\pm}(\theta)$. For the six vertex model the general solution
depending on fou... | hep-th |
Symmetry enhancement in 4d Spin(n) gauge theories and compactification
from 6d: We consider a known sequence of dualities involving $4d$ ${\cal N}=1$
theories with $Spin(n)$ gauge groups and use it to construct a new sequence of
models exhibiting IR symmetry enhancement. Then, motivated by the observed
pattern of IR ... | hep-th |
An eight-dimensional approach to G_2 manifolds: We develop a systematic approach to G_2 holonomy manifolds with an
SU(2)xSU(2) isometry using maximal eight-dimensional gauged supergravity to
describe D6-branes wrapped on deformed three-spheres. A quite general metric
ansatz that generalizes the celebrated Bryant-Salamo... | hep-th |
MHV-Vertices for Gravity Amplitudes: We obtain a CSW-style formalism for calculating graviton scattering
amplitudes and prove its validity through the use of a special type of
BCFW-like parameter shift. The procedure is illustrated with explicit examples. | hep-th |
Yukawa Corrections from Four-Point Functions in Intersecting D6-Brane
Models: We discuss corrections to the Yukawa matrices of the Standard Model (SM)
fermions in intersecting D-brane models due to four-point interactions.
Recently, an intersecting D-brane model has been found where it is possible to
obtain correct m... | hep-th |
Quantizing the non-linear graviton: We consider holomorphic Poisson-BF theory on twistor space. Classically, this
describes self-dual Einstein gravity on space-time, but at the quantum level it
is plagued by an anomaly. The anomaly corresponds to the fact that
integrability of the self-dual vacuum Einstein equations do... | hep-th |
Superconducting Source of the Kerr-Newman Electron: Regular superconducting solution for interior of the Kerr-Newman (KN)
spinning particle is obtained. For parameters of electron it represents a
highly oblated rotating bubble formed by Higgs field which expels the
electromagnetic (em) field and currents from interior ... | hep-th |
Area-preserving structure of 2d-gravity: The effective action for 2d-gravity with manifest area-preserving invariance
is obtained in the flat and in the general gravitational background. The
cocyclic properties of the last action are proved, and generalizations on
higher dimensions are discussed. | hep-th |
Electrically Charged Einstein-Born-Infeld Black Holes with Massive
Dilaton: We numerically construct static and spherically symmetric electrically
charged black hole solutions in Einstein-Born-Infeld gravity with massive
dilaton. The numerical solutions show that the dilaton potential allows many
more black hole caus... | hep-th |
Spontaneous symmetry breakings in the singlet scalar Yukawa model within
the auxiliary field method: The aim of this work is to investigate the occurrence of two different
spontaneous symmetry breakings {at} two levels of the description of
fermion-scalar field model, by means of a set of gap equations and {with} a
b... | hep-th |
3d $\mathcal{N}=2$ minimal SCFTs from Wrapped M5-branes: We study CFT data of 3-dimensional superconformal field theories (SCFTs)
arising from wrapped two M5-branes on closed hyperbolic 3-manifolds. Via
so-called 3d/3d correspondence, central charges of these SCFTs are related to a
$SL(2)$ Chern-Simons (CS) invariant o... | hep-th |
Superconformal Quantum Mechanics and the Discrete Light-Cone
Quantisation of N=4 SUSY Yang-Mills: We study the quantum mechanical sigma model arising in the discrete
light-cone quantisation of N=4 supersymmetric Yang-Mills theory. The target
space is a certain torus fibration over a scale-invariant special Kahler
man... | hep-th |
Geometric Transitions, Flops and Non-Kahler Manifolds: I: We construct a duality cycle which provides a complete supergravity
description of geometric transitions in type II theories via a flop in
M-theory. This cycle connects the different supergravity descriptions before
and after the geometric transitions. Our const... | hep-th |
Possible Effects of Spacetime Foam in Particle Physics: We present an extension of quantum field theory to the case when the
spacetime topology fluctuates (spacetime foam). In this extension the number of
bosonic fields becomes a variable and the ground state is characterized by a
finite particle number density. It is ... | hep-th |
Color Current Induced by Gluon in Background Field Method of QCD: By using the background field method of QCD in a path integral approach, we
derive the equation of motion for the classical chromofield and for the gluon
in a system containing the gluon and the classical chromofield simultaneously.
This inhomogeneous fi... | hep-th |
Shear viscosity of the $Φ^4$ theory from classical simulation: Shear viscosity of the classical $\Phi^4$ theory is measured using classical
microcanonical simulation. To calculate the Kubo formula, we measure the
energy-momentum tensor correlation function, and apply the Green-Kubo relation.
Being a classical theory, t... | hep-th |
Emergent gravity from off-shell energy fixing: Off-shell processes do not preserve the Energy Momentum Tensor (EMT) in QFT.
Fixing the EMT throughout off-shell processes, implies a graviton-like quantum
field to emerge without dynamics. Its dynamics are generated through quantum
corrections. This Fixed Off-Shell Energy... | hep-th |
Non-Minimal Warm Inflation and Perturbations on the Warped DGP Brane
with Modified Induced Gravity: We construct a warm inflation model with inflaton field non-minimally coupled
to induced gravity on a warped DGP brane. We incorporate possible modification
of the induced gravity on the brane in the spirit of $f(R)$-g... | hep-th |
Tachyons and the preferred frames: Quantum field theory of space-like particles is investigated in the framework
of absolute causality scheme preserving Lorentz symmetry. It is related to an
appropriate choice of the synchronization procedure (definition of time). In
this formulation existence of field excitations (tac... | hep-th |
Light-Cone Quantization a of Scalar Field on Time-Dependent Backgrounds: We discuss what is light-cone quantization on a curved spacetime also without
a null Killing vector. Then we consider as an example the light-cone
quantization of a scalar field on a background with a Killing vector and the
connection with the sec... | hep-th |
Non-BPS D8-branes and Dynamic Domain Walls in Massive IIA Supergravities: We study the D8-branes of the Romans massive IIA supergravity theory using
the coupled supergravity and worldvolume actions. D8 branes can be regarded as
domain walls with the jump in the extrinsic curvature at the brane given by the
Israel match... | hep-th |
On the Duffin-Kemmer-Petiau Formulation of the Covariant Hamiltonian
Dynamics in Field Theory: We show that the De Donder-Weyl (DW) covariant Hamiltonian field equations of
any field can be written in Duffin-Kemmer-Petiau (DKP) matrix form. As a
consequence, the (modified) DKP beta-matrices (5 X 5 in four space-time
... | hep-th |
Black branes on the linear dilaton background: We show that the complete static black p-brane supergravity solution with a
single charge contains two and only two branches with respect to behavior at
infinity in the transverse space. One branch is the standard family of
asymptotically flat black branes, and another is ... | hep-th |
Born sigma model for branes in exceptional geometry: In double field theory, the physical space has been understood as a subspace
of the doubled space. Recently, the doubled space is defined as the
para-Hermitian manifold and the physical space is realized as a leaf of a
foliation of the doubled space. This constructio... | hep-th |
Noncommuting Electric Fields and Algebraic Consistency in Noncommutative
Gauge theories: We show that noncommuting electric fields occur naturally in
$\theta$-expanded noncommutative gauge theories. Using this noncommutativity,
which is field dependent, and a hamiltonian generalisation of the
Seiberg-Witten Map, the ... | hep-th |
On the holographic width of flux tubes: We investigate the width of the flux tube between heavy static quark charges.
Using the gauge/gravity duality, we find the properties of the minimal
connected surface related to the width of the bound state. We show that in the
confining phase, the logarithmic broadening predicte... | hep-th |
Conformally Coupled Scalars, Instantons and Vacuum Instability in AdS_4: We show that a scalar field conformally coupled to AdS gravity in four
dimensions with a quartic self-interaction can be embedded into M-theory. The
holographic effective potential is exactly calculated, allowing us to study
non-perturbatively the... | hep-th |
D-branes and Discrete Torsion: We show that discrete torsion is implemented in a D-brane world-volume theory
by using a projective representation of the orbifold point group. We study the
example of C^3/Z_2 x Z_2 and show that the resolution of singularities agrees
with that proposed by Vafa and Witten. A new type of f... | hep-th |
On String Junctions in Supersymmetric Gauge Theories: We study junctions consisting of confining strings in N=1 supersymmetric
large N gauge theories by means of the gauge/gravity correspondence. We realize
these junctions as D-brane configurations in infrared geometries of the
Klebanov-Strassler (KS) and the Maldacena... | hep-th |
Fluid-gravity correspondence in the scalar-tensor theory of gravity:
(in)equivalence of Einstein and Jordan frames: The duality of gravitational dynamics (projected on a null hypersurface) and
of fluid dynamics is investigated for the scalar tensor (ST) theory of gravity.
The description of ST gravity, in both Einste... | hep-th |
Novel algebraic structures from the polysymplectic form in field theory: The polysymplectic $(n+1)$-form is introduced as an analogue of the
symplectic form for the De Donder-Weyl polymomentum Hamiltonian formulation of
field theory. The corresponding Poisson brackets on differential forms are
constructed. The analogue... | hep-th |
Universal Terms of Entanglement Entropy for 6d CFTs: We derive the universal terms of entanglement entropy for 6d CFTs by applying
the holographic and the field theoretical approaches, respectively. Our
formulas are conformal invariant and agree with the results of [34,35].
Remarkably, we find that the holographic and ... | hep-th |
Meromorphic Scaling Flow of N=2 Supersymmetric SU(2) Yang-Mills with
Matter: Beta-functions are derived for the flow of N=2 SUSY SU(2) Yang-Mills in
4-dimensions with massless matter multiplets in the fundamental representation
of the gauge group. The beta-functions represent the flow of the couplings as
the VEV of t... | hep-th |
$T{\overline T}$ deformations and the width of fundamental particles: We provide a simple geometric meaning for deformations of so-called
$T{\overline T}$ type in relativistic and non-relativistic systems.
Deformations by the cross products of energy and momentum currents in
integrable quantum field theories are known ... | hep-th |
Towards AdS Distances in String Theory: The AdS Distance Conjecture proposes to assign a notion of distance between
AdS vacua in quantum gravity. We perform some initial developments of this
idea. We first propose more sharply how to define a metric on conformal
variations of AdS through the action. This metric is nega... | hep-th |
Yangian Invariants and Cluster Adjacency in N=4 Yang-Mills: We conjecture that every rational Yangian invariant in N=4 SYM theory
satisfies a recently introduced notion of cluster adjacency. We provide
evidence for this conjecture by using the Sklyanin Poisson bracket on Gr(4,n)
to check numerous examples. | hep-th |
The black hole/string transition in AdS$_3$ and confining backgrounds: String stars, or Horowitz-Polchinski solutions, are Euclidean string theory
saddles with a normalizable condensate of thermal winding strings. String stars
were suggested as a possible description of stringy (Euclidean) black holes
close to the Hage... | hep-th |
Holographic torus correlators in $\text{AdS}_3$ gravity coupled to
scalar field: This paper investigates holographic torus correlators of generic operators at
conformal infinity and a finite cutoff within AdS$_3$ gravity coupled with a
free scalar field. Using a near-boundary analysis and solving the gravitational
bo... | hep-th |
Trialities and Exceptional Lie Algebras: DECONSTRUCTING the Magic Square: A construction of the magic square, and hence of exceptional Lie algebras, is
carried out using trialities rather than division algebras. By way of
preparation, a comprehensive discussion of trialities is given, incorporating a
number of novel re... | hep-th |
Third Order Tree Contributions in the Causal Approach: We consider the general framework of perturbative quantum field theory for
the pure Yang-Mills model developed in [9] and prove that the tree
contributions do not give anomalies. We will provide a more general form of
this gauge invariance property. | hep-th |
W Algebras, W Gravities and their Moduli Spaces: By generalizing the Drinfel'd--Sokolov reduction we construct a large class
of W algebras as reductions of Kac--Moody algebras. Furthermore we construct
actions, invariant under local left and right W transformations, which are the
classical covariant induced actions for... | hep-th |
Lax Operator and superspin chains from 4D CS gauge theory: We study the properties of interacting line defects in the four-dimensional
Chern Simons (CS) gauge theory with invariance given by the $SL\left(
m|n\right) $ super-group family. From this theory, we derive the oscillator
realisation of the Lax operator for sup... | hep-th |
Is quantum teleportation beyond horizon possible?: We ask whether quantum teleportation from the outside to the inside of a
horizon is possible, using entanglement extracted from a vacuum. We first
calculate analytically, within the perturbation theory, entanglement extracted
from the Minkowski vacuum into a pair of an... | hep-th |
Non-local self-healing of Higgs inflation: Higgs inflation is known to be a minimal extension of the Standard Model
allowing for the description of the early Universe inflation. This model is
considered as an effective field theory since it has a relatively low cutoff
scale, thus requiring further extensions to be a va... | hep-th |
Remarks on the thermofield double state in 4D black hole background: Recently it was shown that there is an anomalous singularity of propagators
in spacetimes with horizons for thermal states with non--canonical
temperatures. In this paper we extend these observations to the situation when
the background geometry is gi... | hep-th |
A selection rule for transitions in PT-symmetric quantum theory: Carl Bender and collaborators have developed a quantum theory governed by
Hamiltonians that are PT-symmetric rather than Hermitian. To implement this
theory, the inner product was redefined to guarantee positive norms of
eigenstates of the Hamiltonian. In... | hep-th |
Extraction of shear viscosity in stationary states of relativistic
particle systems: Starting from a classical picture of shear viscosity we construct a
stationary velocity gradient in a microscopic parton cascade. Employing the
Navier-Stokes ansatz we extract the shear viscosity coefficient $\eta$. For
elastic isotr... | hep-th |
Spectral properties of the 2D magnetic Weyl-Dirac operator with a
short-range potential: This paper is devoted to the study of the spectral properties of the
Weyl-Dirac or massless Dirac operators, describing the behavior of quantum
quasi-particles in dimension 2 in a homogeneous magnetic field, $B^{\rm ext}$,
pertur... | hep-th |
Two Dimensional Horava-Lifshitz Black Hole Solutions: In this paper we address the issue of black hole solutions in
(1+1)-dimensional non-projectable Horava-Lifshitz gravity. We consider several
models by considering different potentials in the scalar matter sector. We also
consider the gravitational collapse of a dist... | hep-th |
The Black Ring is Unstable: We study non-axisymmetric linearised gravitational perturbations of the
Emparan-Reall black ring using numerical methods. We find an unstable mode
whose onset lies within the "fat" branch of the black ring and continues into
the "thin" branch. Together with previous results using Penrose ine... | hep-th |
Intersecting S-Brane Solutions of D=11 Supergravity: We construct all possible orthogonally intersecting S-brane solutions in
11-dimensions corresponding to standard supersymmetric M-brane intersections.
It is found that the solutions can be obtained by multiplying the brane and the
transverse directions with appropria... | hep-th |
Confinement interaction in nonlinear generalizations of the
Wick-Cutkosky model: We consider nonlinear-mediating-field generalizations of the Wick-Cutkosky
model. Using an iterative approach and eliminating the mediating field by means
of the covariant Green function we arrive at a Lagrangian density containing
many-... | hep-th |
One-loop effective potential on hyperbolic manifolds: The one-loop effective potential for a scalar field defined on an ultrastatic
space-time whose spatial part is a compact hyperbolic manifold, is studied
using zeta-function regularization for the one-loop effective action. Other
possible regularizations are discusse... | hep-th |
Corfu 05 lectures - part I: Strings on curved backgrounds: In these introductory lectures we summarize some basic facts and techniques
about perturbative string theory (sections 1 to 6). These are further developed
(sections 7 and 8) for describing string propagation in the presence of
gravitational or gauge fields. We... | hep-th |
Deviations from Fermi-Liquid behaviour in (2+1)-dimensional Quantum
Electrodynamics and the normal phase of high-$T_c$ Superconductors: We argue that the gauge-fermion interaction in multiflavour quantum
electrodynamics in $(2 + 1)$-dimensions is responsible for non-fermi liquid
behaviour in the infrared, in the sens... | hep-th |
Black holes without firewalls: The postulates of black hole complementarity do not imply a firewall for
infalling observers at a black hole horizon. The dynamics of the stretched
horizon, that scrambles and re-emits information, determines whether infalling
observers experience anything out of the ordinary when enterin... | hep-th |
N=2 Supersymmetric Yang-Mills and the Quantum Hall Effect: It is argued that there are strong similarities between the infra-red physics
of N=2 supersymmetric Yang-Mills and that of the quantum Hall effect, both
systems exhibit a hierarchy of vacua with a sub-group of the modular group
mapping between them. The scaling... | hep-th |
Anti-de Sitter space, branes, singletons, superconformal field theories
and all that: There has recently been a revival of interest in anti de-Sitter space (AdS)
brought about by the conjectured duality beteeen physics in the bulk of AdS and
a conformal field theory on the boundary. Since the whole subject of branes,... | hep-th |
Critical Composite Superconformal String: In the paper the nilpotent conditions of BRST operator for new superconformal
string model were found. This string includes anticommutation $2-d$ fields
additional to the standard Neveu-Schwarz superconformal set which carry quark
quantum numbers. In this case the superconforma... | hep-th |
Heisenberg Groups and Noncommutative Fluxes: We develop a group-theoretical approach to the formulation of generalized
abelian gauge theories, such as those appearing in string theory and M-theory.
We explore several applications of this approach. First, we show that there is
an uncertainty relation which obstructs sim... | hep-th |
The holographic Weyl semi-metal: We present a holographic model of a Weyl semi-metal. We show that upon
varying a mass parameter the model undergoes a quantum phase transition from a
topologically non-trivial state to a trivial one. The order parameter for this
phase transition is the anomalous Hall effect (AHE). We gi... | hep-th |
On the Topology of the Reduced Classical Configuration Space of Lattice
QCD: We study the topological structure of the quotient of $SU(3)\times SU(3)$ by
diagonal conjugation. This is the simplest nontrivial example for the classical
reduced configuration space of chromodynamics on a spatial lattice in the
Hamiltonia... | hep-th |
Topological Field Theories associated with Three Dimensional
Seiberg-Witten monopoles: Three dimensional topological field theories associated with the three
dimensional version of Abelian and non-Abelian Seiberg-Witten monopoles are
presented. These three dimensional monopole equations are obtained by a
dimensional ... | hep-th |
Quantization of the Riemann Zeta-Function and Cosmology: Quantization of the Riemann zeta-function is proposed. We treat the Riemann
zeta-function as a symbol of a pseudodifferential operator and study the
corresponding classical and quantum field theories. This approach is motivated
by the theory of p-adic strings and... | hep-th |
Narain to Narnia: We generalize the holographic correspondence between topological gravity
coupled to an abelian Chern-Simons theory in three dimensions and an ensemble
average of Narain's family of massless free bosons in two dimensions,
discovered by Afkhami-Jeddi et al. and by Maloney and Witten. We find that the
co... | hep-th |
Functional Schroedinger and BRST Quantization of (1+1)--Dimensional
Gravity: We discuss the quantization of pure string--inspired dilaton--gravity in
$(1+1)$--dimensions, and of the same theory coupled to scalar matter. We
perform the quantization using the functional Schroedinger and BRST formalisms.
We find, both f... | hep-th |
Non-Gaussianity in String Cosmology: A Case Study: We study non-gaussianity effects, using the $\delta N$ formalism, in a
multi-field inflationary model consisting of K\"ahler moduli derived from type
IIB string compactification in the large volume limit. The analytical work in
this paper mostly follows the separable p... | hep-th |
Entropy and replica geometry in generic two-dimensional dilaton gravity
theories: We set up a new version of black hole information paradox in an eternal
Narayan black hole, a generic two-dimensional dilaton gravity theory with
non-trivial on-shell bulk action and a product of dimensional reduction from
higher-dimens... | hep-th |
Integrable open-boundary conditions for the supersymmetric t-J model.
The quantum group invariant case: We consider integrable open--boundary conditions for the supersymmetric t--J
model commuting with the number operator $n$ and $S^{z}$. Four families, each
one depending on two arbitrary parameters, are found. We fi... | hep-th |
Distributions of nonsupersymmetric flux vacua: We continue the study of the distribution of nonsupersymmetric flux vacua in
IIb string theory compactified on Calabi-Yau manifolds, as in hep-th/0404116.
We show that the basic structure of this problem is that of finding
eigenvectors of the matrix of second derivatives o... | hep-th |
Aspects of holography and rotating AdS black holes: A comparison is made between the thermodynamics of weakly and strongly
coupled Yang-Mills with fixed angular momentum. The free energy of the strongly
coupled Yang-Mills is calculated by using a dual supergravity description
corresponding to a rotating black hole in a... | hep-th |
Wormhole interaction in 2d Horava-Lifshitz quantum gravity: A lattice regularization for the $2$d projectable Horava-Lifshitz (HL)
quantum gravity is known to be the $2$d causal dynamical triangulations (CDT),
and the $2$d CDT can be generalized so as to include all possible genus
contributions non-perturbatively. We s... | hep-th |
The partition function versus boundary conditions and confinement in the
Yang-Mills theory: We analyse dependence of the partition function on the boundary condition for
the longitudinal component of the electric field strength in gauge field
theories. In a physical gauge the Gauss law constraint may be resolved
expl... | hep-th |
Code Properties of the Holographic Sierpinski Triangle: We study the holographic quantum error correcting code properties of a
Sierpinski Triangle-shaped boundary subregion in $AdS_4/CFT_3$. Due to existing
no-go theorems in topological quantum error correction regarding fractal noise,
this gives holographic codes a sp... | hep-th |
Categorical Pentagon Relations and Koszul Duality: The Kontsevich-Soibelman wall-crossing formula is known to control the
jumping behavior of BPS state counting indices in four-dimensional theories
with $\mathcal{N}=2$ supersymmetry. The formula can take two equivalent forms:
a ``fermionic'' form with nice positivity p... | hep-th |
Two-dimensional topological field theories as taffy: In this paper we use trivial defects to define global taffy-like operations
on string worldsheets, which preserve the field theory. We fold open and closed
strings on a space X into open strings on products of multiple copies of X, and
perform checks that the "taffy-... | hep-th |
Baby Skyrme model and fermionic zero modes: In this work we investigate some features of the fermionic sector of the
supersymmetric version of the baby Skyrme model. We find that, in the
background of BPS compact Skyrmions, fermionic zero modes are confined to the
defect core. Further, we show that, while three SUSY ge... | hep-th |
Quiver Theories for Moduli Spaces of Classical Group Nilpotent Orbits: We approach the topic of Classical group nilpotent orbits from the
perspective of their moduli spaces, described in terms of Hilbert series and
generating functions. We review the established Higgs and Coulomb branch quiver
theory constructions for ... | hep-th |
Renormalisation of φ^4-theory on noncommutative R^4 to all orders: We present the main ideas and techniques of the proof that the
duality-covariant four-dimensional noncommutative \phi^4-model is
renormalisable to all orders. This includes the reformulation as a dynamical
matrix model, the solution of the free theory b... | hep-th |
Anisotropic homogeneous string cosmology with two-loop corrections: The two-loop (order $\alpha'$) $\beta$-function equations, which are
equivalent to the equations of motion of $\alpha'$-corrected string effective
action, are considered for anisotropic homogeneous space-times. These equations
are solved for all Bianch... | hep-th |
Nuttier Bubbles: We construct new explicit solutions of general relativity from double
analytic continuations of Taub-NUT spacetimes. This generalizes previous
studies of 4-dimensional nutty bubbles. One 5-dimensional locally
asymptotically AdS solution in particular has a special conformal boundary
structure of $AdS_3... | hep-th |
Quantum Field Theory on Fock Projective Space: It is shown that some analog of the ``second quantization'' exists in the
framework of CP(N) theory. I analyse conditions under that ``geometrical
bosons'' may be identified with real physical fields. The compact character of
a state manifold should preserve the quantities... | hep-th |
Classification of N=6 superconformal theories of ABJM type: Studying the supersymmetry enhancement mechanism of Aharony, Bergman,
Jafferis and Maldacena, we find a simple condition on the gauge group
generators for the matter fields. We analyze all possible compact Lie groups
and their representations. The only allowed... | hep-th |
Hidden Symmetries of M Theory: A worldvolume action for membrane is considered to study the target space
local symmetries. We introduce a set of generators of canonical transformations
to exhibit the target space symmetries such as the general coordinate
transformation and the gauge transformation of antisymmetric tens... | hep-th |
Loop Transfer Matrix and Loop Quantum Mechanics: We extend the previous construction of loop transfer matrix to the case of
nonzero self-intersection coupling constant $\kappa$. The loop generalization
of Fourier transformation allows to diagonalize transfer matrices depending on
symmetric difference of loops and expre... | hep-th |
IIB matrix model and regularized big bang: The large-$N$ master field of the Lorentzian IIB matrix model can, in
principle, give rise to a particular degenerate metric relevant to a
regularized big bang. The length parameter of this degenerate metric is then
calculated in terms of the IIB-matrix-model length scale. | hep-th |
Footballs, Conical Singularities and the Liouville Equation: We generalize the football shaped extra dimensions scenario to an arbitrary
number of branes. The problem is related to the solution of the Liouville
equation with singularities and explicit solutions are presented for the case
of three branes. The tensions o... | hep-th |
Emergence in Holographic Scenarios for Gravity: 'Holographic' relations between theories have become an important theme in
quantum gravity research. These relations entail that a theory without gravity
is equivalent to a gravitational theory with an extra spatial dimension. The
idea of holography was first proposed in ... | hep-th |
Unitary Minimal Liouville Gravity and Frobenius Manifolds: We study unitary minimal models coupled to Liouville gravity using Douglas
string equation. Our approach is based on the assumption that there exist an
appropriate solution of the Douglas string equation and some special choice of
the resonance transformation s... | hep-th |
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