abstract stringlengths 3 192k | title stringlengths 4 857 |
|---|---|
strong cosmic censorship conjecture has been one of the most important leap of faith in the context of general relativity, providing assurance in the deterministic nature of the associated field equations. though it holds well for asymptotically flat spacetimes, a potential failure of the strong cosmic censorship conje... | fate of strong cosmic censorship conjecture in presence of higher spacetime dimensions |
perturbative quantum field theory usually uses second quantisation and feynman diagrams. the worldline formalism provides an alternative approach based on first quantised particle path integrals, similar in spirit to string perturbation theory. here we review the history, main features and present applications of the f... | quantum mechanical path integrals in the first quantised approach to quantum field theory |
we focus on the question of how relativistic fluid dynamics should be thought of as a wilsonian effective field theory emerging from schwinger-keldysh path integrals. taking the basic principles of schwinger-keldysh formalism seriously, we are led to a series of remarkable statements and conjectures, which we phrase in... | the fluid manifesto: emergent symmetries, hydrodynamics, and black holes |
motivated by understanding the scattering of gravitons and their superpartners from extended $(p, q)$-strings in type iib string theory via ads/cft, we study an integrated two-point function of stress tensor multiplet operators in the presence of a half-bps line defect in ${\cal n} = 4$ $su(n)$ super-yang-mills theory.... | scattering from $(p,q)$-strings in $\\text{ads}_5 \\times \\text{s}^5$ |
we extend the swampland from effective field theories (efts) inconsistent with quantum gravity to efts inconsistent with quantum supergravity. this enlarges the swampland to include efts that become inconsistent when the gravitino is quantized. we propose the "gravitino swampland conjecture": the gravitino sound speed ... | gravitino swampland conjecture |
a global symmetry of a quantum field theory is said to have an 't hooft anomaly if it cannot be promoted to a local symmetry of a gauged theory. in this paper, we show that the anomaly is also an obstruction to defining symmetric boundary conditions. this applies to lorentz symmetries with gravitational anomalies as we... | anomalous symmetries end at the boundary |
we introduce the notion of "binary" positive and complex geometries, giving a completely rigid geometric realization of the combinatorics of generalized associahedra attached to any dynkin diagram. we also define open and closed "cluster string integrals" associated with these "cluster configuration spaces". the binary... | binary geometries, generalized particles and strings, and cluster algebras |
we study the vacuum structure of gauge theories with eight supercharges. it has been recently discovered that in the higgs branch of 5 d and 6 d sqcd theories with eight supercharges, the new massless states, arising when the gauge coupling is taken to infinity, can be described in terms of coulomb branches of 3 d n=4 ... | quiver subtractions |
we extend our previous construction of global solutions to type iib super-gravity that are invariant under the superalgebra f(4) and are realized on a spacetime of the form ads 6 × s 2 warped over a riemann surface σ by allowing the supergravity fields to have non-trivial sl(2, &r;) monodromy at isolated punctures on σ... | warped ads 6 × s 2 in type iib supergravity iii. global solutions with seven-branes |
gauge-theoretic anomaly cancellation predicts the existence of many 6d scfts and little string theories (lsts) that have not been given a string theory construction so far. in this paper, we provide an explicit construction of all such "missing" 6d scfts and lsts by using the frozen phase of f-theory. we conjecture tha... | revisiting the classifications of 6d scfts and lsts |
we propose an efficient grassmannian formalism for solution of bi-linear finite-difference hirota equation (t-system) on t-shaped lattices related to the space of highest weight representations of gl( k 1 , k 2| m ) superalgebra. the formalism is inspired by the quantum fusion procedure known from the integrable spin c... | t-system on t-hook: grassmannian solution and twisted quantum spectral curve |
we elaborate on recent results regarding the self-consistency of de sitter vacua in the large-volume scenario of type iib string theory. in particular, we analyze to what extent the control over warping, curvature and gs corrections depends on the topology and the orientifold/brane data of a compactification. we comput... | topological constraints in the large-volume scenario |
we study a jackiw-teitelboim (jt) supergravity theory, defined as a euclidean path integral over orientable supermanifolds with constant negative curvature, which was argued by stanford and witten to be captured by a random matrix model in the β =2 dyson-wigner class. we show that the theory is a double-cut matrix mode... | jackiw-teitelboim supergravity as a double-cut matrix model |
a solvable irrelevant deformation of ads3/cft2 correspondence leading to a theory with hagedorn spectrum at high energy has been recently proposed. it consists of a single trace deformation of the boundary theory, which is inspired by the recent work on solvable t\overline{t} deformations of two-dimensional cfts. thoug... | t\\overline{t} -deformations, ads/cft and correlation functions |
motivated by low energy effective action of string theory and numerous applications of btz black holes, we will consider minimal coupling between dilaton and nonlinear electromagnetic fields in three dimensions. the main goal is studying thermodynamical structure of black holes in this set up. temperature and heat capa... | dilatonic btz black holes with power-law field |
what is the dimension of spacetime? we address this question in the context of the ads/cft correspondence. we give a prescription for computing the number of large bulk dimensions, d, from strongly-coupled cft ddata, where "large" means parametrically of order the ads scale. the idea is that unitarity of 1-loop ads amp... | growing extra dimensions in ads/cft |
we investigate the lagrangian formulation of the double-copy correspondence between gauge theories and gravity, up to the cubic order. building on the definition of the double-copy field as a convolution of two vectors, we obtain free gravitational lagrangians as products of two yang-mills lagrangians, in a form amenab... | on the lagrangian formulation of the double copy to cubic order |
we propose a field theoretic framework for calculating the dependence of rényi entropies on the shape of the entangling surface in a conformal field theory. our approach rests on regarding the corresponding twist operator as a conformal defect and in particular, we define the displacement operator which implements smal... | rényi entropy and conformal defects |
a bubble of nothing is a spacetime instability where a compact dimension collapses. after nucleation, it expands at the speed of light, leaving "nothing" behind. we argue that the topological and dynamical mechanisms which could protect a compactification against decay to nothing seem to be absent in string compactific... | nothing is certain in string compactifications |
in an earlier paper, we constructed the genus-two amplitudes for five external massless states in type ii and heterotic string theory, and showed that the α' expansion of the type ii amplitude reproduces the corresponding supergravity amplitude to leading order. in this paper, we analyze the effective interactions indu... | two-loop superstring five-point amplitudes. part ii. low energy expansion and s-duality |
the genus zero contribution to the four-point correlator «op1op2op3op4 « of half-bps single-particle operators op in n = 4 super yang-mills, at strong coupling, computes the virasoro-shapiro amplitude of closed superstrings in ads5× s5. combining mellin space techniques, the large p limit, and data about the spectrum o... | the virasoro-shapiro amplitude in ads5 × s5 and level splitting of 10d conformal symmetry |
we compute the topologically twisted index for general n=2 supersymmetric field theories on h_2× {s}^1 . we also discuss asymptotically ads 4 magnetically charged black holes with hyperbolic horizon, in four-dimensional n=2 gauged supergravity. with certain assumptions, put forward by benini, hristov and zaffaroni, we ... | microstate counting of ads 4 hyperbolic black hole entropy via the topologically twisted index |
we present a formulation of double field theory with a drinfeld double as extended spacetime. it makes poisson-lie t-duality (including abelian and non-abelian t-duality as special cases) manifest. this extends the scope of possible applications of the theory, which so far captured abelian t-duality only, considerably.... | poisson-lie t-duality in double field theory |
we consider the 5d kerr-ads black hole as a gravity dual to rotating quark-gluon plasma. in the holographic prescription we calculate the drag force acting on a heavy quark. according to the holographic approach a heavy quark can be considered through the string in the gravity dual. we study the dynamics of the string ... | holographic drag force in 5d kerr-ads black hole |
we construct an effective qcd light-front hamiltonian for both mesons and baryons in the chiral limit based on the generalized supercharges of a superconformal algebra. the superconformal construction is shown to be equivalent to a semiclassical approximation to light-front qcd and its embedding in anti-de sitter space... | superconformal baryon-meson symmetry and light-front holographic qcd |
we discuss possible vacuum structures of su( n) × su( n) gauge theories with bifundamental matters at finite θ angles. in order to give a precise constraint, a mixed 't hooft anomaly is studied in detail by gauging the center &z;none-form symmetry of the bifundamental gauge theory. we propose phase diagrams that are co... | vacuum structure of bifundamental gauge theories at finite topological angles |
we conjecture the quantum spectral curve equations for string theory on ads3× s3× t4 with rr charge and its cft2 dual. we show that in the large-length regime, under additional mild assumptions, the qsc reproduces the asymptotic bethe ansatz equations for the massive sector of the theory, including the exact dressing p... | quantum spectral curve for ads3/cft2: a proposal |
the cft dual of string theory on ads3 × s3 × s3 × s1 is conjectured to be the symmetric orbifold of the s_{κ } theory, provided that one of the two q 5 ± quantum numbers is a multiple of the other. we determine the bps spectrum of the symmetric orbifold in detail, and show that it reproduces precisely the bps spectrum ... | a holographic dual for string theory on ads3×s3×s3×s1 |
in this short note, we comment on the existence of two more fermionic unitary minimal models not included in recent work by hsieh, nakayama, and tachikawa. these theories are obtained by fermionizing the &z;2 symmetry of the m = 11 and m = 12 exceptional unitary minimal models. furthermore, we explain why these are the... | two more fermionic minimal models |
moduli stabilisation in string compactifications with many light scalars remains a major blind-spot in the string landscape. in these regimes, analytic methods cease to work for generic choices of uv parameters which is why numerical techniques have to be exploited. in this paper, we implement algorithms based on jax, ... | jaxvacua — a framework for sampling string vacua |
these lecture notes provide a self-contained introduction to euler integrals, which are frequently encountered in applications. in particle physics, they arise as feynman integrals or string amplitudes. our four selected topics demonstrate the diverse mathematical techniques involved in the study of euler integrals, in... | four lectures on euler integrals |
we discuss the properties of massive type iia flux compactifications. in particular, we investigate in which case one can obtain ds vacua at large volume and small coupling. we support a general discussion of scaling symmetries with the analysis of a concrete example. we find that the large volume and weak coupling lim... | scaling limits of ds vacua and the swampland |
generalized quasi-topological gravities (gqtgs) are higher-curvature extensions of einstein gravity characterized by the existence of non-hairy generalizations of the schwarzschild black hole which satisfy gttgrr = -1, as well as for having second-order linearized equations around maximally symmetric backgrounds. in th... | all higher-curvature gravities as generalized quasi-topological gravities |
we derive the potential modular symmetries of heterotic string theory. for a toroidal compactification with wilson line modulus, we obtain the siegel modular group sp (4 , z) that includes the modular symmetries sl (2 , z) t and sl (2 , z) u (of the "geometric" moduli t and u) as well as mirror symmetry. in addition, s... | siegel modular flavor group and cp from string theory |
gauge theories appear broadly in physics, ranging from the standard model of particle physics to long-wavelength descriptions of topological systems in condensed matter. however, systems with sign problems are largely inaccessible to classical computations and also beyond the current limitations of digital quantum hard... | framework for simulating gauge theories with dipolar spin systems |
we derive the general anomaly polynomial for a class of two-dimensional cfts arising as twisted compactifications of a higher-dimensional theory on compact manifolds ℳd, including the contribution of the isometries of ℳd. we then use the result to per- form a counting of microstates for electrically charged and rotatin... | anomalies, black strings and the charged cardy formula |
we study electrical transport in a strongly coupled strange metal in two spatial dimensions at finite temperature and charge density, holographically dual to the einstein-maxwell theory in an asymptotically four-dimensional anti-de sitter space spacetime, with arbitrary spatial inhomogeneity, up to mild assumptions inc... | absence of disorder-driven metal-insulator transitions in simple holographic models |
non-perturbative quantum corrections to supersymmetric black hole entropy often involve nontrivial number-theoretic phases called kloosterman sums. we show how these sums can be obtained naturally from the functional integral of supergravity in asymptotically ads 2 space for a class of black holes. they are essentially... | nonperturbative black hole entropy and kloosterman sums |
we develop a mathematical theory of symmetry protected trivial (spt) orders and anomaly-free symmetry enriched topological (set) orders in all dimensions via two different approaches with an emphasis on the second approach. the first approach is to gauge the symmetry in the same dimension by adding topological excitati... | classification of topological phases with finite internal symmetries in all dimensions |
despite the rich and fruitful history of the integrability approach to string theory on the ads3 × s3 × t4 background, it has not been possible to extract many concrete predictions from integrability, except in a strict asymptotic regime of large quantum numbers, due to the severity of wrapping effects. the situation c... | exploring the quantum spectral curve for ads3/cft2 |
the bootstrap approach (demanding consistency conditions to scattering amplitudes) has shown to be quite powerful to tightly constrain gauge theories at large nc. we extend previous analysis to scattering amplitudes involving pions and external gauge bosons. these amplitudes allow us to access the chiral anomaly and co... | bootstrapping the chiral anomaly at large nc |
strings on ads3 × s3 × t4 with mixed ramond-ramond and neveu-schwarz-neveu-schwarz flux are known to be classically integrable. this is a crucial property of this model, which cannot be studied by conventional worldsheet-cft techniques. integrability should carry over to the quantum level, and the worldsheet s matrix i... | on mixed-flux worldsheet scattering in ads3/cft2 |
we extend the parton-hadron string dynamics (phsd) transport approach in the partonic sector by explicitly calculating the total and differential partonic scattering cross sections as a function of temperature t and baryon chemical potential μb on the basis of the effective propagators and couplings from the dynamical ... | exploring the partonic phase at finite chemical potential within an extended off-shell transport approach |
we study the cp violation and the cp phase of quark mass matrices in modular flavor symmetric models. the cp symmetry remains at τ = e2πi/3 by a combination of the t-symmetry of the modular symmetry. however, t-symmetry breaking may lead to cp violation at the fixed point τ = e2πi/3. we study such a possibility in magn... | mass matrices with cp phase in modular flavor symmetry |
to compute the string one-loop correction to the kähler potential of moduli fields of string compactifications in einstein-frame, one must compute: the string one-loop correction to the einstein-hilbert action, the string one-loop correction to the moduli kinetic terms, the string one-loop correction to the definition ... | on string one-loop correction to the einstein-hilbert term and its implications on the kähler potential |
we study euclidean d3-branes wrapping divisors d in calabi-yau orientifold compactifications of type iib string theory. witten's counting of fermion zero modes in terms of the cohomology of the structure sheaf od applies when d is smooth, but we argue that effective divisors of calabi-yau threefolds typically have sing... | superpotentials from singular divisors |
the purpose of this white paper is to review recent progress towards elucidating and evaluating string amplitudes, relating them to quantum field theory amplitudes, applying their predictions to string dualities, exploring their connection with gravitational physics, and deepening our understanding of their mathematica... | snowmass white paper: string perturbation theory |
early data from the james webb space telescope (jwst) has uncovered the existence of a surprisingly abundant population of very massive galaxies at extremely high redshift, which are hard to accommodate within the standard λcdm cosmology. we explore whether the jwst observations may be pointing towards more complex dyn... | dark energy in light of the early jwst observations: case for a negative cosmological constant? |
we construct a consistent truncation of six-dimensional matter coupled f(4) gauged supergravity on a cornucopia of two-dimensional surfaces including a spindle, disc, domain wall and other novel backgrounds to four-dimensional minimal gauged supergravity. using our consistent truncation we uplift known ads2× σ1 solutio... | d4-branes wrapped on four-dimensional orbifolds through consistent truncation |
what follows is a broad-brush overview of the recent synergistic interactions between mathematics and theoretical physics of quantum field theory and string theory. the discussion is forward-looking, suggesting potentially useful and fruitful directions and problems, some old, some new, for further development of the s... | a panorama of physical mathematics c. 2022 |
we propose an integrability setup for the computation of correlation functions of gauge-invariant operators in n =4 supersymmetric yang-mills theory at higher orders in the large nc genus expansion and at any order in the 't hooft coupling gym2nc. in this multistep proposal, one polygonizes the string world sheet in al... | handling handles: nonplanar integrability in n =4 supersymmetric yang-mills theory |
we study the four-point function of the lowest-lying half-bps operators in the n = 4 su(n) super-yang-mills theory and its relation to the flat-space four-graviton amplitude in type iib superstring theory. we work in a large-n expansion in which the complexified yang-mills coupling τ is fixed. in this expansion, non-pe... | modular invariance in superstring theory from n = 4 super-yang-mills |
the geometry of 4-string contact interaction of closed string field theory is characterized using machine learning. we obtain strebel quadratic differentials on 4-punctured spheres as a neural network by performing unsupervised learning with a custom-built loss function. this allows us to solve for local coordinates an... | characterizing 4-string contact interaction using machine learning |
chiral and non-chiral p-form gauge fields have gravitational anomalies and anomalies of green-schwarz type. this means that they are most naturally realized as the boundary modes of bulk topological phases in one higher dimensions. we give a systematic description of the total bulk-boundary system which is analogous to... | anomaly inflow and p-form gauge theories |
we consider the dispersion relation of the shear-diffusion mode in relativistic hydrodynamics, which we generate to high order as a series in spatial momentum q for a holographic model. we demonstrate that the hydrodynamic series can be summed in a way that extends through branch cuts present in the complex q plane, re... | short-lived modes from hydrodynamic dispersion relations |
we consider flux compactification of type ii string theory with local sources on su(3)-structure manifolds. by adding pseudo-calibrated anti-$dp$-branes wrapped on supersymmetric cycles we generalize all existing models so that the effective $d=4,$ ${\cal n}=1$ supergravity now includes a nilpotent multiplet. we presen... | ds supergravity from 10d |
we investigate the conjectured bound on the lyapunov exponent for a charged particle with angular motion in the kerr-newman-ads black hole. the lyapunov exponent is calculated based on the effective lagrangian. we show that the negative cosmological constant reduces the chaotic behavior of the particle, namely, it decr... | violation of bound on chaos for charged probe in kerr-newman-ads black hole |
we classify solutions of 10d type iia/b supergravities with orientifolds, on a 4d maximally symmetric spacetime times a 6d group manifold. we then look for new solutions in previously unexplored solution classes, and find some: (anti-) de sitter solutions with intersecting o4, o6 and d6, or minkowski solutions with 3 i... | charting the landscape of (anti-) de sitter and minkowski solutions of 10d supergravities |
we present a quantitative and fully non-perturbative description of the ergodic phase of quantum chaos in the setting of two-dimensional gravity. to this end we describe the doubly non-perturbative completion of semiclassical 2d gravity in terms of its associated universe field theory. the guiding principle of our anal... | quantum chaos in 2d gravity |
we introduce and develop a theory of fusion and statistical processes of gapped excitations in abelian fracton phases. the key idea is to incorporate lattice translation symmetry via its action on superselection sectors, which results in a fusion theory endowed with information about the nontrivial mobility of fractons... | fracton fusion and statistics |
we construct the quantum bv master action for heterotic and type ii string field theories. | bv master action for heterotic and type ii string field theories |
based on an identity of jacobi, we prove a simple formula that computes the pushforward of analytic functions of the exceptional divisor of a blowup of a projective variety along a smooth complete intersection with normal crossing. we use this pushforward formula to derive generating functions for euler characteristics... | euler characteristics of crepant resolutions of weierstrass models |
the yang-baxter σ -model is a systematic way to generate integrable deformations of ads5×s5 . we recast the deformations as seen by open strings, where the metric is undeformed ads5×s5 with constant string coupling, and all information about the deformation is encoded in the noncommutative (nc) parameter θ . we identif... | yang-baxter σ -models, conformal twists, and noncommutative yang-mills theory |
we construct a new class of smooth horizonless microstate geometries of the supersymmetric d1-d5-p black hole in type iib supergravity. we first work in the ads3 × s 3 decoupling limit and use the fermionic symmetries of the theory to generate new momentum carrying perturbations in the bulk that have an explicit cft du... | supercharging superstrata |
we construct the first smooth bubbling geometries using the weyl formalism. the solutions are obtained from einstein theory coupled to a two-form gauge field in six dimensions with two compact directions. we classify the charged weyl solutions in this framework. smooth solutions consist of a chain of kaluza-klein bubbl... | smooth bubbling geometries without supersymmetry |
string monodromy is a set of linear relations among open string tree amplitudes with different orderings of the vertex operators. in this letter, we show how these intrinsically stringy relations emerge in low-energy effective field theory from the assumptions of locality and the field theory kleiss-kuijf (kk) and bern... | emergence of string monodromy in effective field theory |
in this letter we present some stringy corrections to black hole spacetimes emerging from string t-duality. as a first step, we derive the static newtonian potential by exploiting the relation between the t-duality and the path integral duality. we show that the intrinsic non-perturbative nature of stringy corrections ... | quantum corrected black holes from string t-duality |
we analyse type iia calabi-yau orientifolds with background fluxes and d6- branes. rewriting the f-term scalar potential as a bilinear in flux-axion polynomials yields a more efficient description of the landscape of flux vacua, as they are invariant under the discrete shift symmetries of the 4d effective theory. in pa... | a landscape of ads flux vacua |
d-instanton world-volume theory has open string zero modes describing collective coordinates of the instanton. the usual perturbative amplitudes in the d-instanton background suffer from infra-red divergences due to the presence of these zero modes, and the usual approach of analytic continuation in momenta does not wo... | d-instanton perturbation theory |
canonical forms of positive geometries play an important role in revealing hidden structures of scattering amplitudes, from amplituhedra to associahedra. in this paper, we introduce "stringy canonical forms", which provide a natural definition and extension of canonical forms for general polytopes, deformed by a parame... | stringy canonical forms |
we derive the bekenstein-hawking entropy for a class of bps black holes in the massive type iia supergravity background ads4 × s 6 from a microscopic counting of supersymmetric ground states in a holographically dual field theory. the counting is performed by evaluating the topologically twisted index of three-dimensio... | holographic microstate counting for ads4 black holes in massive iia supergravity |
in the simplest picture, the masses of string axions populating the axiverse depend on two parameters: the supersymmetry-breaking scale msusy and the action s of the string instantons responsible for breaking the axion shift symmetry. in this work, we explore whether cosmological data can be used to probe these two par... | cosmological window onto the string axiverse and the supersymmetry breaking scale |
a mild version of the weak gravity conjecture (wgc) states that extremal black holes have charge-to-mass ratio larger or equal than one when higher-curvature interactions are taken into account. since these corrections become more relevant in the low-mass regime, this would allow the decay of extremal black holes in te... | on the extremality bound of stringy black holes |
it was recently conjectured that in generic quantum many-body systems, the spectral density of local operators has the slowest high-frequency decay as permitted by locality. we show that the infinite-temperature version of this 'universal operator growth hypothesis' holds for the quantum ising spin model in d ⩾ 2 dimen... | a statistical mechanism for operator growth |
type iia string theory compactified on a calabi-yau threefold has a hypermultiplet moduli space whose metric is known to receive non-perturbative corrections from euclidean d2-branes wrapped on 3-cycles. these corrections have been computed earlier by making use of mirror symmetry, s-duality and twistorial description ... | d-instantons in type iia string theory on calabi-yau threefolds |
we revisit the taub-nut solution of the einstein equations without time periodicity condition, showing that the misner string is still fully transparent for geodesics. in this case, analytic continuation can be carried out through both horizons leading to a hausdorff spacetime without a central singularity, and thus ge... | rehabilitating space-times with nuts |
we have recently shown that a class of counterexamples to (weak) cosmic censorship in anti-de sitter spacetime is removed if the weak gravity conjecture holds. surprisingly, the minimum value of the charge to mass ratio necessary to preserve cosmic censorship is precisely the weak gravity bound. to further explore this... | further evidence for the weak gravity — cosmic censorship connection |
we construct the classical double copy formalism for m-theory. this extends the current state of the art by including the three form potential of eleven dimensional supergravity along with the metric. the key for this extension is to construct a kerr-schild type ansatz for exceptional field theory. this kerr-schild ans... | the classical double copy for m-theory from a kerr-schild ansatz for exceptional field theory |
we compute the cosmological reduction of general string theories, including bosonic, heterotic, and type ii string theory to order α'3, i.e., with up to eight derivatives. to this end, we refine recently introduced methods that allow one to bring the reduced theory in one dimension to a canonical form with only first-o... | general string cosmologies at order α'3 |
recent work has shown that certain deformations of the scalar potential in jackiw-teitelboim gravity can be written as double-scaled matrix models. however, some of the deformations exhibit an apparent breakdown of unitarity in the form of a negative spectral density at disc order. we show here that the source of the p... | solving puzzles in deformed jt gravity: phase transitions and non-perturbative effects |
higher derivative extensions of einstein gravity are important within the string theory approach to gravity and as alternative and effective theories of gravity. h. lü, a. perkins, c. pope, and k. stelle [phys. rev. lett. 114, 171601 (2015), 10.1103/physrevlett.114.171601] found a numerical solution describing a spheri... | non-schwarzschild black-hole metric in four dimensional higher derivative gravity: analytical approximation |
surprising links between the deformation of 2d quantum field theories induced by the composite t\overline{t} operator, effective string models and the ads/cft correspondence, have recently emerged. the purpose of this article is to discuss various classical aspects related to the deformation of 2d interacting field the... | generalised born-infeld models, lax operators and the t\\overline{t} perturbation |
expanding upon earlier results (araujo et al 2017 phys. rev. d 95 105006), we present a compendium of σ-models associated with integrable deformations of ads5 generated by solutions to homogenous classical yang-baxter equation. each example we study from four viewpoints: conformal (drinfeld) twists, closed string gravi... | conformal twists, yang-baxter σ-models & holographic noncommutativity |
\mathrm{t}\bar{\mathrm{t}}tt‾ deformation was originally proposed as an irrelevant solvable deformation for 2d relativistic quantum field theories (qfts). the same family of deformations can also be defined for integrable quantum spin chains which was first studied in the context of integrability in ads/cft. in this pa... | \\mathrm{t}/line{\\mathrm{t}}-deformed 1d bose gas |
witten's open string field theory with a generalized version of stubs is reformulated as a cubic string field theory using an auxiliary string field. the gauge symmetries and equations of motion as well as the associative algebra of the resulting theory are investigated. integrating out either the original or auxiliary... | open string stub as an auxiliary string field |
symmetries of the physical world have guided formulation of fundamental laws, including relativistic quantum field theory and understanding of possible states of matter. topological defects (tds) often control the universal behavior of macroscopic quantum systems, while topology and broken symmetries determine allowed ... | half-quantum vortices and walls bounded by strings in the polar-distorted phases of topological superfluid 3he |
the recursive method of berends and giele to compute tree-level gluon amplitudes is revisited using the framework of ten-dimensional super yang-mills. first, we prove that the pure spinor formula to compute sym tree amplitudes derived in 2010 reduces to the standard berends-giele formula from the 80s when restricted to... | berends-giele recursions and the bcj duality in superspace and components |
we study the perturbative stability of four settings that arise in string theory, when dilaton potentials accompany the breaking of supersymmetry, in the tachyon-free usp(32) and u(32) orientifold models, and also in the heterotic so(16) × so(16) model. the first two settings are a family of ads 3 × s 7 vacua of the or... | on classical stability with broken supersymmetry |
we derive an identity relating the growth exponent of early-time otocs, the pre-exponential factor, and a third number called "branching time". the latter is defined within the dynamical mean-field framework, namely, in terms of the retarded kernel. this identity can be used to calculate stringy effects in the syk and ... | on the relation between the magnitude and exponent of otocs |
within canonical single field inflation models, we provide a method to reverse engineer and reconstruct the inflaton potential from a given power spectrum. this is not only a useful tool to find a potential from observational constraints, but also gives insight into how to generate a large amplitude spike in density pe... | primordial black holes from polynomial potentials in single field inflation |
the topologically twisted index for abjm theory with gauge group u( n) k× u( n)- khas recently been shown, in the large- n limit, to reproduce the bekensteinhawking entropy of certain magnetically charged asymptotically ads4 black holes. we numerically study the index beyond the large- n limit and provide evidence that... | toward microstate counting beyond large n in localization and the dual one-loop quantum supergravity |
the study of gapped quantum many-body systems in three spatial dimensions has uncovered the existence of quantum states hosting quasiparticles that are confined, not by energetics but by the structure of local operators, to move along lower dimensional submanifolds. these so-called "fracton" phases are beyond the usual... | gauging fractons: immobile non-abelian quasiparticles, fractals, and position-dependent degeneracies |
there is exactly one bosonic (3+1)-dimensional topological order whose only nontrivial particle is an emergent boson: pure $\mathbb{z}_2$ gauge theory. there are exactly two (3+1)-dimensional topological orders whose only nontrivial particle is an emergent fermion: pure "spin-$\mathbb{z}_2$" gauge theory, in which the ... | (3+1)d topological orders with only a $\\mathbb{z}_2$-charged particle |
we present a new model for the description of heavy-quark hadronization in relativistic heavy-ion collisions in the presence of a reservoir of lighter thermal particles with which recombination can occur leading to the formation of color-singlet clusters. color neutralization is assumed to occur locally, within the sam... | in-medium hadronization of heavy quarks and its effect on charmed meson and baryon distributions in heavy-ion collisions |
we study gauge and gravitational anomalies of fermions and 2-form fields on eight-dimensional spin manifolds. possible global gauge anomalies are classified by spin bordism groups ω9spin(bg ) which we determine by spectral sequence techniques, and we also identify their explicit generator manifolds. it turns out that a... | global anomalies in 8d supergravity |
we further explore the connection between holographic o( n) tensor models and random matrices. first, we consider the simplest non-trivial uncolored tensor model and show that the results for the density of states, level spacing and spectral form factor are qualitatively identical to the colored case studied in arxiv:1... | random matrices and holographic tensor models |
it was recently shown that the theory obtained by deforming a general two dimensional conformal theory by the irrelevant operator $t\bar t$ is solvable. in the context of holography, a large class of such theories can be obtained by studying string theory on $ads_3$. we show that a certain $t\bar t$ deformation of the ... | $t\\bar t$ and lst |
the study of conformal boundary conditions for two-dimensional conformal field theories (cfts) has a long history, ranging from the description of impurities in one-dimensional quantum chains to the formulation of d-branes in string theory. nevertheless, the landscape of conformal boundaries is largely unknown, includi... | bootstrapping boundaries and branes |
we present a single-field string inflationary model which allows for the generation of primordial black holes in the low mass region where they can account for a significant fraction of the dark matter abundance. the potential is typical of type iib fibre inflation models and features a plateau at cmb scales and a near... | primordial black holes from string inflation |
we study two dimensional conformal field theory with a left-moving conserved current j, perturbed by an irrelevant, lorentz symmetry breaking operator with the quantum numbers of j\overline{t} , using a combination of field and string theoretic techniques. weshow that the spectrum of the theory has some interesting fea... | j\\overline{t} deformed cft2 and string theory |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.