abstract stringlengths 3 192k | title stringlengths 4 857 |
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we analyze scattering amplitudes with one soft external graviton and arbitrary number of other finite energy external states carrying arbitrary mass and spin to sub-subleading order in the momentum of the soft graviton. our result can be expressed as the sum of a universal part that depends only on the amplitude withou... | sub-subleading soft graviton theorem in generic theories of quantum gravity |
in the process of studying the ζ-function for one parameter families of calabi-yau manifolds we have been led to a manifold, first studied by verrill, for which the quartic numerator of the ζ-function factorises into two quadrics remarkably often. among these factorisations, we find persistent factorisations; these are... | a one parameter family of calabi-yau manifolds with attractor points of rank two |
we present a recursive method to calculate the α' -expansion of disk integrals arising in tree-level scattering of open strings which resembles the approach of berends and giele to gluon amplitudes. following an earlier interpretation of disk integrals as doubly partial amplitudes of an effective theory of scalars dubb... | non-abelian z-theory: berends-giele recursion for the α '-expansion of disk integrals |
we introduce a bosonic ambitwistor string theory in ads space. even though the theory is anomalous at the quantum level, one can nevertheless use it in the classical limit to derive a novel formula for correlation functions of boundary cft operators in arbitrary space-time dimensions. the resulting construction can be ... | scattering equations in ads: scalar correlators in arbitrary dimensions |
glauber-sudarshan states, sometimes simply referred to as glauber states, or alternatively as coherent and squeezed-coherent states, are interesting states in the configuration spaces of any quantum field theories, that closely resemble classical trajectories in space-time. in this paper, we identify four-dimensional d... | de sitter space as a glauber-sudarshan state |
the standard model (sm) is amended by one generation of quarks and leptons which are vectorlike (vl) under the sm gauge group but chiral with respect to a new u(1 ) 3 -4 gauge symmetry. we show that this model can simultaneously explain the deviation of the muon g -2 as well as the observed anomalies in b →s μ+μ- trans... | vectorlike chiral fourth family to explain muon anomalies |
we discuss consequences of the 't hooft anomaly matching condition for quantum chromodynamics (qcd) with massless fundamental quarks. we derive the new discrete 't hooft anomaly of massless qcd for generic numbers of color n c and flavor n f , and an exotic chiral-symmetry broken phase without quark-bilinear condensate... | anomaly constraint on massless qcd and the role of skyrmions in chiral symmetry breaking |
we study the charge-to-mass ratios of bps states in four-dimensional n = 2 supergravities arising from calabi-yau threefold compactifications of type iib string theory. we present a formula for the asymptotic charge-to-mass ratio valid for all limits in complex structure moduli space. this is achieved by using the sl(2... | weak gravity bounds in asymptotic string compactifications |
we construct an o( d, d) invariant universal formulation of the first-order α'-corrections of the string effective actions involving the dilaton, metric and two-form fields. two free parameters interpolate between four-derivative terms that are even and odd with respect to a z 2-parity transformation that changes the s... | t-duality and α'-corrections |
in this paper, we explore the open string amplitude's dual role as a space-time s-matrix and a 2d holomorphic cft correlation function. we pursue this correspondence in two directions. first, beginning with a general disk integrand dressed with a koba-nielsen factor, we demonstrate that exchange symmetry for the factor... | carving out the space of open-string s-matrix |
realising de sitter vacua in string theory is challenging. for this reason it has been conjectured that de sitter vacua inhabit the swampland of inconsistent low-energy effective theories coupled to gravity. since de sitter is an attractor for λcdm, the conjecture calls λcdm into question. reality appears sympathetic t... | de sitter swampland, h0 tension & observation |
recent string theory tests of swampland ideas like the distance or the ds conjectures have been performed at weak coupling. testing these ideas beyond the weak coupling regime remains challenging. we propose to exploit the modular symmetries of the moduli effective action to check swampland constraints beyond perturbat... | modular symmetries and the swampland conjectures |
we obtain new relations between einstein-yang-mills (eym) amplitudes involving n gauge bosons plus a single graviton and pure yang-mills amplitudes involving n gauge bosons plus one additional vector boson inserted in a way typical for a gauge boson of a "spectator" group commuting with the group associated to original... | new relations for einstein-yang-mills amplitudes |
two-dimensional su(n) gauge theory coupled to a majorana fermion in the adjoint representation is a nice toy model for higher-dimensional gauge dynamics. it possesses a multitude of "gluinoball" bound states whose spectrum has been studied using numerical diagonalizations of the light-cone hamiltonian. we extend this m... | exact symmetries and threshold states in two-dimensional models for qcd |
we show that warped throats of the klebanov-strassler kind, regarded as 5d flux compactifications on sasaki-einstein manifolds x 5, describe fully backreacted solutions of transplanckian axion monodromy. we show that the asymptotic klebanov-tseytlin solution features a 5d axion physically rolling through its dependence... | transplanckian axion monodromy!? |
we study the shadow of a rotating squashed kaluza-klein (kk) black hole and the shadow is found to possess distinct properties from those of usual rotating black holes. it is shown that the shadow for a rotating squashed kk black hole is heavily influenced by the specific angular momentum of photon from the fifth dimen... | shadow of a rotating squashed kaluza-klein black hole |
we introduce a nonperturbative approach to correlation functions of two determinant operators and one nonprotected single-trace operator in planar n =4 supersymmetric yang-mills theory. based on the gauge-string duality, we propose that they correspond to overlaps on the string world sheet between an integrable boundar... | exact three-point functions of determinant operators in planar n =4 supersymmetric yang-mills theory |
we propose a procedure to determine the moduli-space integrands of loop-level superstring amplitudes for massless external states in terms of the field theory limit. we focus on the type ii superstring. the procedure is to (i) take a supergravity loop integrand written in a bcj double-copy representation, (ii) use the ... | superstring loop amplitudes from the field theory limit |
axionlike particle (alp)-photon couplings are modeled in large ensembles of string vacua and random matrix theories. in all cases, the effective coupling increases polynomially in the number of alps, of which hundreds or thousands are expected in the string ensembles, many of which are ultralight. the expected value of... | towards string theory expectations for photon couplings to axionlike particles |
we study correlation functions with multiple averaged null energy (anec) operators in conformal field theories. for large n cfts with a large gap to higher spin operators, we show that the ope between a local operator and the anec can be recast as a particularly simple differential operator acting on the local operator... | einstein gravity from anec correlators |
we study the evolution of correlation functions of local fields in a two-dimensional quantum field theory under the λt t ¯ deformation, suitably regularized. we show that this may be viewed in terms of the evolution of each field, with a dirac-like string being attached at each infinitesimal step. the deformation then ... | t t ¯ deformation of correlation functions |
unlike string theory, topological physics in lower dimensional condensed matter systems is an experimental reality since the bulk-boundary correspondence can be probed experimentally in lower dimensions. in addition, recent experimental discoveries of non-quantum-hall-like topological insulators, topological supercondu... | topological insulators, topological superconductors and weyl fermion semimetals: discoveries, perspectives and outlooks |
the axion weak gravity conjecture implies that when parametrically increasing the axion decay constants, instanton corrections become increasingly important. we provide strong evidence for the validity of this conjecture by studying the couplings of r-r axions arising in calabi-yau compactifications of type iia string ... | infinite distances and the axion weak gravity conjecture |
the theory of open quantum systems lays the foundation for a substantial part of modern research in quantum science and engineering. rooted in the dimensionality of their extended hilbert spaces, the high computational complexity of simulating open quantum systems calls for the development of strategies to approximate ... | autoregressive neural network for simulating open quantum systems via a probabilistic formulation |
we study four-derivative corrections to 5d n = 2 minimal gauged supergravity using tools from conformal supergravity. there are two supersymmetric invariants at the four-derivative order and we show explicitly how to write down the action in the poincaré frame in terms of their coefficients. we apply our results in the... | ads5 holography and higher-derivative supergravity |
we construct n = (2, 2) supersymmetric ads3 solutions of type iib supergravity, dual to twisted compactifications of 4d n = 4 super-yang-mills on riemann surfaces. we consider both theories with a regular topological twist, and a twist involving the isometry group of the riemann surface. these solutions are interpreted... | n = (2, 2) ads3 from d3-branes wrapped on riemann surfaces |
the immensity of the string landscape and the difficulty of identifying solutions that match the observed features of particle physics have raised serious questions about the predictive power of string theory. modern methods of optimisation and search can, however, significantly improve the prospects of constructing th... | evolving heterotic gauge backgrounds: genetic algorithms versus reinforcement learning |
einsteinian cubic gravity provides a holographic toy model of a nonsupersymmetric cft in three dimensions, analogous to the one defined by quasi-topological gravity in four. the theory admits explicit non-hairy ads4 black holes and allows for numerous exact calculations, fully nonperturbative in the new coupling. we id... | holographic studies of einsteinian cubic gravity |
we obtain the largest families constructed to date of 1/8 -bps solutions of type iib supergravity. they have the same charges and mass as supersymmetric d1-d5-p black holes, but they cap off smoothly with no horizon. their construction relies on the structure of superstratum states, but allows the momentum wave to have... | holomorphic waves of black hole microstructure |
we establish a connection between the ultra-planckian scattering amplitudes in field and string theory and unitarization by black hole formation in these scattering processes. using as a guideline an explicit microscopic theory in which the black hole represents a bound-state of many soft gravitons at the quantum criti... | black hole formation and classicalization in ultra-planckian 2 → n scattering |
one-point functions of certain non-protected scalar operators in the defect cft dual to the d3-d5 probe brane system with k units of world volume flux can be expressed as overlaps between bethe eigenstates of the heisenberg spin chain and a matrix product state. we present a closed expression of determinant form for th... | one-point functions in ads/dcft from matrix product states |
we revisit the construction of the tensionless limit of closed bosonic string theory in the covariant formulation in the light of galilean conformal symmetry that rises as the residual gauge symmetry on the tensionless worldsheet. we relate the analysis of the fundamentally tensionless theory to the tensionless limit t... | tensionless strings from worldsheet symmetries |
a magnetic skyrmion is a stable two-dimensional nanoparticle describing a localized winding of the magnetization in certain magnetic materials. skyrmions are the subject of intense experimental and theoretical investigation and have potential technological spintronic applications. here we show that numerical computatio... | skyrmion knots in frustrated magnets |
in this paper, we develop an improved method for directly calculating double-copy-compatible tree numerators in (super-)yang-mills and yang-mills-scalar theories. our new scheme gets rid of any explicit dependence on reference orderings, restoring a form of crossing symmetry to the numerators. this in turn improves the... | efficient calculation of crossing symmetric bcj tree numerators |
we compute the normalization of the general multi-instanton contribution to the partition function of (p', p) minimal string theory and also to the dual two-matrix integral. we find perfect agreement between the two results. | multi-instantons in minimal string theory and in matrix integrals |
we revamp the constructive enumeration of 1/16-bps states in the maximally supersymmetric yang-mills in four dimensions, and search for ones that are not of multi-graviton form. a handful of such states are found for gauge group su(2) at relatively high energies, resolving a decade-old enigma. along the way, we clarify... | words to describe a black hole |
the cobordism conjecture of the swampland program states that the bordism group of quantum gravity must be trivial. we investigate this statement in several directions, on both the mathematical and physical side. we consider the whitehead tower construction as a possible organising principle for the topological structu... | looking for structure in the cobordism conjecture |
the swampland conjectures from string theory have had some really interesting implications on cosmology, in particular on inflationary models. some models of inflation have been shown to be incompatible with these criteria while some have been shown to be severely fine-tuned, with most of these problems arising in sing... | rejuvenating the hope of a swampland consistent inflated multiverse with tachyonic inflation in the high-energy rs-ii braneworld |
we argue that in type iib lvs string models, after including the leading order moduli stabilisation effects, the moduli space for the remaining flat directions is compact due the calabi-yau kähler cone conditions. in cosmological applications, this gives an inflaton field range which is bounded from above, in analogy w... | a geometrical upper bound on the inflaton range |
we consider the question of identifying the bulk space-time of the syk model. focusing on the signature of emergent space-time of the (euclidean) model, we explain the need for non-local (radon-type) transformations on external legs of n-point green's functions. this results in a dual theory with euclidean ads signatur... | space-time in the syk model |
we address a long-standing problem of describing the thermodynamics of rotating taub-nut solutions. the obtained first law is of full cohomogeneity and allows for asymmetric distributions of misner strings as well as their potential variable strengths-encoded in the gravitational misner charges. notably, the angular mo... | the first law for rotating nuts |
we revisit and extend previous calculations of glueball decay rates in the sakai-sugimoto model, a holographic top-down approach for qcd with chiral quarks based on d 8 -d 8 ¯ probe branes in witten's holographic model of nonsupersymmetric yang-mills theory. the rates for decays into two pions, two vector mesons, four ... | glueball decay rates in the witten-sakai-sugimoto model |
it was recently shown in [1] that tree-level correlation functions in tensionless string theory on ads3 × s3 × t4 match the expected form of correlation functions in the symmetric orbifold cft on t4 in the large n limit. this analysis utilized the free-field realization of the psu (1 1 2)1 wess-zumino-witten model, alo... | higher genus correlators for tensionless ads3 strings |
we analyze the extension of the gup theory deriving from the modified uncertainty principle in agreement with the string low energy limit, which represents one of the most general formulations satisfying the jacobi identity, in the context of the associative algebras. after providing some physical insights on the natur... | extended gup formulation and the role of momentum cut-off |
we examine the space of allowed s-matrices on the adler zeros' plane using the recently resurrected (numerical) s-matrix bootstrap program for pion scattering. two physical quantities, an averaged total scattering cross-section, and an averaged entanglement power for the boundary s-matrices, are studied. emerging linea... | selection rules for the s-matrix bootstrap |
we derive and test a novel holographic duality in the b-model topological string theory. the duality relates the b-model on certain calabi-yau three-folds to two-dimensional chiral algebras defined as gauged $\beta\gamma\,$ systems. the duality conjecturally captures a topological sector of more familiar $\mathrm{ads}_... | twisted holography |
we present a novel framework for simulating matrix models on a quantum computer. supersymmetric matrix models have natural applications to superstring/m-theory and gravitational physics, in an appropriate limit of parameters. furthermore, for certain states in the berenstein-maldacena-nastase (bmn) matrix model, severa... | toward simulating superstring/m-theory on a quantum computer |
we present predictions from the string melting version of a multiphase transport model on various observables in pb+pb collisions at √{snn}=5.02 tev . we use the same version of the model as an earlier study that reasonably reproduced d n /d y , pt spectra and elliptic flow of charged pions and kaons at low-pt for cent... | predictions for √{snn}=5.02 tev pb + pb collisions from a multiphase transport model |
we revisit the computation of string worldsheet correlators on euclidean ads3 with pure ns-ns background. we compute correlation functions with insertions of spectrally flowed operators. we explicitly solve all the known constraints of the model and for the first time conjecture a closed formula for three-point functio... | string correlators on ads3: three-point functions |
we investigate the interactions of discrete zero-form and one-form global symmetries in (1+1)d theories. focus is put on the interactions that the symmetries can have on each other, which in this low dimension result in 2-group symmetries or symmetry fractionalization. a large part of the discussion will be to understa... | symmetries and anomalies of (1+1)d theories: 2-groups and symmetry fractionalization |
we show that four-dimensional de sitter space is a glauber-sudarshan state, i.e. a coherent state, over a supersymmetric solitonic background in full string theory. we argue that such a state is only realized in the presence of temporally varying degrees of freedom and after including quantum corrections, with supersym... | four-dimensional de sitter space is a glauber-sudarshan state in string theory |
the organising principles underlying the structure of phenomenologically viable string vacua can be accessed by sampling such vacua. in many cases this is prohibited by the computational cost of standard sampling methods in the high dimensional model space. here we show how this problem can be alleviated using reinforc... | revealing systematics in phenomenologically viable flux vacua with reinforcement learning |
it has been shown that, by adding an extra free field that decouples from the dynamics, one can construct actions for interacting 2n-form fields with self-dual field strengths in 4n+ 2 dimensions. in this paper we analyze canonical formulation of these theories, and show that the resulting hamiltonian reduces to the su... | self-dual forms: action, hamiltonian and compactification |
we revisit the question of predicting both hodge numbers h1 ,1 and h2 ,1 of complete intersection calabi-yau (cicy) 3-folds using machine learning (ml), considering both the old and new datasets built respectively by candelas-dale-lutken-schimmrigk/green-hübsch-lutken and by anderson-gao-gray-lee. in real-world applica... | machine learning for complete intersection calabi-yau manifolds: a methodological study |
we propose an inverse seesaw model with large $su(2)_l$ multiplets applying modular $a_4$ symmetry where $su(2)_l$ quartet and septet fermions are introduced as triplets under the symmetry. the neutral components of the quartet contribute to mass matrix for inverse seesaw mechanism and interactions involving the septet... | modular $a_4$ symmetric inverse seesaw model with $su(2)_l$ multiplet fields |
we study strings associated with minimal 6d scfts, which by definition have only one string charge and no higgs branch. these theories are labelled by a number n with 1 <= n <= 8 or n = 12. quiver theories have previously been proposed which describe strings of scfts for n = 1, 2. for n > 2 the strings interac... | strings of minimal 6d scfts |
dotsenko-fateev and chern-simons matrix models, which describe nekrasov functions for sym theories in different dimensions, are all incorporated into network matrix models with the hidden ding-iohara-miki (dim) symmetry. this lifting is especially simple for what we call balanced networks. then, the ward identities (kn... | explicit examples of dim constraints for network matrix models |
the concept and the construction of modular graph functions are generalized from genus-one to higher genus surfaces. the integrand of the four-graviton superstring amplitude at genus-two provides a generating function for a special class of such functions. a general method is developed for analyzing the behavior of mod... | higher genus modular graph functions, string invariants, and their exact asymptotics |
we further develop the string 1/c2 expansion of closed bosonic string theory, where c is the speed of light. the expansion will be performed up to and including the next-to-next-to-leading order (nnlo). we show that the next-to-leading order (nlo) theory is equal to the gomis-ooguri string, generalised to a curved targ... | nonrelativistic approximations of closed bosonic string theory |
we combine supersymmetric localization and the conformal bootstrap to study five-dimensional superconformal field theories. to begin, we classify the admissible counter-terms and derive a general relation between the five-sphere partition function and the conformal and flavor central charges. along the way, we discover... | spheres, charges, instantons, and bootstrap: a five-dimensional odyssey |
motivated by string dualities we propose topological gravity as the early phase of our universe. the topological nature of this phase naturally leads to the explanation of many of the puzzles of early universe cosmology. a concrete realization of this scenario using witten's four dimensional topological gravity is cons... | topological gravity as the early phase of our universe |
we show that the superconformal index of n=1 superconformal field theories in four dimensions has an asymptotic growth of states which is exponential in the charges. our analysis holds in a cardy-like limit of large charges, for which the index is dominated by small values of chemical potentials. in this limit we find ... | the asymptotic growth of states of the 4d n=1 superconformal index |
we investigate the emergence of topological defect lines in the conformal regge limit of two-dimensional conformal field theory. we explain how a local operator can be factorized into a holomorphic and an anti-holomorphic defect operator connected through a topological defect line, and discuss implications on analytici... | lorentzian dynamics and factorization beyond rationality |
recently introduced generalized global symmetries have been useful in order to understand non-perturbative aspects of quantum field theories in four and lower dimensions. in this paper we focus on 1-form symmetries of weakly coupled 6d supersymmetric gauge theories coupled to dynamical tensor multiplets. we study the c... | the fate of discrete 1-form symmetries in 6d |
identifying string theory vacua with desired physical properties at low energies requires searching through high-dimensional solution spaces - collectively referred to as the string landscape. we highlight that this search problem is amenable to reinforcement learning and genetic algorithms. in the context of flux vacu... | probing the structure of string theory vacua with genetic algorithms and reinforcement learning |
we provide general formulae for the topologically twisted index of a general three-dimensional {n} ≥ 2 gauge theory with an m-theory or massive type iia dual in the large n limit. the index is defined as the supersymmetric path integral of the theory on s 2 × s 1 in the presence of background magnetic fluxes for the r-... | large n matrix models for 3d {n} = 2 theories: twisted index, free energy and black holes |
we argue that accidental approximate scaling symmetries are robust predictions of weakly coupled string vacua, and show that their interplay with supersymmetry and other (generalised) internal symmetries underlies the ubiquitous appearance of no‑scale supergravities in low‑energy 4d efts. we identify 4 nested types of ... | uv shadows in efts: accidental symmetries, robustness and no‑scale supergravity |
we study moduli stabilization in calabi-yau orientifold compactifications of type iib string theory with o3- and o7-planes. we consider a calabi-yau three-fold with hodge number h2,1 = 50 and stabilize all axio-dilaton and complex-structure moduli by three-form fluxes. this is a challenging task, especially for large m... | moduli stabilization in type iib orientifolds at h2,1 = 50 |
in quantum field theory, an orbifold is a way to obtain a new theory from an old one by gauging a finite global symmetry. this definition of orbifold does not make sense for quantum gravity theories, that admit (conjecturally) no global symmetries. in string theory, the orbifold procedure involves the gauging of a glob... | a fresh view on string orbifolds |
axions, periodic scalar fields coupled to gauge fields through the instanton density, have a rich variety of higher-form global symmetries. these include a two-form global symmetry, which measures the charge of axion strings. as we review, these symmetries typically combine into a higher-group, a kind of non-abelian st... | axions, higher-groups, and emergent symmetry |
the connection between black hole thermodynamics and chemistry is extended to the lower-dimensional regime by considering the rotating and charged bañados, teitelboim, and zanelli (btz) metric in the (2 +1 )-dimensional and (1 +1 )-dimensional limits of einstein gravity. the smarr relation is naturally upheld in both b... | lower-dimensional black hole chemistry |
we show that double field theory arises from the color-kinematic double copy of yang-mills theory. a precise double copy prescription for the yang-mills action at quadratic and cubic order is provided that yields the double field theory action in which the duality invariant dilaton has been integrated out. more precise... | double field theory as the double copy of yang-mills theory |
we discuss multipartitions of the gapped ground states of (2 +1 )-dimensional topological liquids into three (or more) spatial regions that are adjacent to each other and meet at points. by considering the reduced density matrix obtained by tracing over a subset of the regions, we compute various correlation measures, ... | multipartitioning topological phases by vertex states and quantum entanglement |
in this paper, we introduce a new set of modular-invariant phase factors for orbifolds with trivially-acting subgroups, analogous to discrete torsion and generalizing quantum symmetries. after describing their basic properties, we generalize decomposition to include orbifolds with these new phase factors, making a prec... | quantum symmetries in orbifolds and decomposition |
we use reinforcement learning as a means of constructing string compactifications with prescribed properties. specifically, we study heteroticgut models on calabi‑yau three‑folds with monad bundles, in search of phenomenologically promising examples. due to the vast number of bundles and the sparseness of viable choice... | heterotic string model building with monad bundles and reinforcement learning |
motivated by questions about quantum information and classification of quantum field theories, we consider conformal field theories (cfts) in spacetime dimension d ≥ 5 with a conformally-invariant spatial boundary (bcfts) or 4-dimensional conformal defect (dcfts). we determine the boundary or defect contribution to the... | weyl anomalies of four dimensional conformal boundaries and defects |
in an effective field theory approach to gravity, the einstein-hilbert action is supplemented by higher derivative terms. in the absence of matter, four derivative terms can be eliminated by a field redefinition. we use the euclidean action to calculate analytically the corrections to thermodynamic quantities of the ke... | higher derivative corrections to kerr black hole thermodynamics |
the hilbert space of a quantum system with internal global symmetry g decomposes into sectors labelled by irreducible representations of g. if the system is chaotic, the energies in each sector should separately resemble ordinary random matrix theory. we show that such "sector-wise" random matrix ensembles arise as the... | matrix ensembles with global symmetries and 't hooft anomalies from 2d gauge theory |
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 ... | anomaly inflow and $p$-form gauge theories |
we study the parameter space of magnetically charged ads2×wcp[n−n+ ]1 solutions in 4d u(1)4 gauged stu supergravity. we show that both twist and anti-twist solutions are realised and give constraints for their existence in terms of the magnetic charges of the solution. we provide infinite families of both classes of so... | a tale of (m)2 twists |
we classify two-dimensional purely chiral conformal field theories which are defined on two-dimensional surfaces equipped with spin structure and have central charge less than or equal to 16, and discuss their duality webs. this result can be used to confirm that the list of non-supersymmetric ten-dimensional heterotic... | classification of chiral fermionic cfts of central charge $\\le 16$ |
the entropy of the three-charge ns5-f1-p black hole in type iia string theory comes from the breaking of n1 f1 strings into n1n5 little strings, which become independent momentum carriers. in m theory, the little strings correspond to strips of m2 brane that connect pairs of parallel m5 branes separated along the m-the... | the (amazing) super-maze |
we compute a large collection of string worldsheet correlators describing light probes interacting with heavy black hole microstates. the heavy states consist of ns5 branes carrying momentum and/or fundamental string charge. in the fivebrane decoupling limit, worldsheet string theory on a family of such backgrounds is ... | worldsheet computation of heavy-light correlators |
we refine an earlier introduced 5-dimensional gravity solution capable of holographically capturing several qualitative aspects of (lattice) qcd in a strong magnetic background such as the anisotropic behavior of the string tension, inverse catalysis at the level of the deconfinement transition or sensitivity of the en... | chiral transition in the probe approximation from an einstein-maxwell-dilaton gravity model |
in this work, we show how states with conserved numbers of dynamical defects (strings, domain walls, etc.) can be understood as possessing generalized global symmetries even when the microscopic origins of these symmetries are unknown. using this philosophy, we build an effective theory of a 2 +1 -dimensional fluid sta... | generalized global symmetries in states with dynamical defects: the case of the transverse sound in field theory and holography |
we reconsider the black hole firewall puzzle, emphasizing that quantum error- correction, computational complexity, and pseudorandomness are crucial concepts for understanding the black hole interior. we assume that the hawking radiation emitted by an old black hole is pseudorandom, meaning that it cannot be distinguis... | the ghost in the radiation: robust encodings of the black hole interior |
distinct quantum vacua of topologically ordered states can be tunneled into each other via extended operators. the possible applications include condensed matter and quantum cosmology. we present a straightforward approach to calculate the partition function on various manifolds and ground state degeneracy (gsd), mainl... | tunneling topological vacua via extended operators: (spin-)tqft spectra and boundary deconfinement in various dimensions |
we compute the quasi-normal frequencies of scalars in asymptotically-flat microstate geometries that have the same charge as a d1-d5-p black hole, but whose long btz-like throat ends in a smooth cap. in general the wave equation is not separable, but we find a class of geometries in which the non-separable term is negl... | the great escape: tunneling out of microstate geometries |
we give evidence that fully supersymmetric anti-de sitter vacua of extended supergravity with a residual gauge group containing an abelian factor cannot be scale separated as a consequence of the weak gravity conjecture. we prove this for n = 2 and n = 8 supergravity and we explain how our argument applies also to vacu... | weak gravity versus scale separation |
we study worldvolume actions for d-branes coupled to the worldvolume u(1) gauge field and ramond-ramond (rr) potentials in nonrelativistic string theory. this theory is a self-contained corner of relativistic string theory and has a string spectrum with a galilean-invariant dispersion relation. we therefore refer to su... | dual d-brane actions in nonrelativistic string theory |
one of the general strategies for realizing a wide class of interacting qfts is via junctions and intersections of higher-dimensional bulk theories. in the context of string/m-theory, this includes many $d > 4$ superconformal field theories (scfts) coupled to an ir free bulk. gauging the flavor symmetries of these t... | junctions, edge modes, and $g_2$-holonomy orbifolds |
we consider supergravity theories with 8 supercharges in $d=6$. we show that all the proposed anomaly free theories with unbounded number of massless modes are restricted to a finite subset and thus argue that there is an upper bound on the number of massless modes, consistent with the string lamppost principle. | on the finiteness of 6d supergravity landscape |
given an asymptotically anti-de sitter supergravity solution, one can obtain a microscopic interpretation by identifying the corresponding state in the holographically dual conformal field theory. this is of particular importance for heavy pure states that are candidate black hole microstates. expectation values of lig... | supercharged ads3 holography |
surface operators in the 6d (2,0) theory at large n have a holographic description in terms of m2 branes probing the ads7×s4 m-theory background. the most symmetric, 1/2-bps, operator is defined over a planar or spherical surface, and it preserves a 2d superconformal group. this includes, in particular, an so(2, 2) sub... | defect cft in the 6d (2,0) theory from m2 brane dynamics in ads7 × s4 |
we study worldsheet instantons in holographic type iia backgrounds directly in string theory. the first background is a dimensional reduction of ads7 × s4 and is dual to the maximally supersymmetric yang-mills theory on s5. the second background is ads4 × cp3 dual to abjm in the type iia limit. we compute the one-loop ... | quantized strings and instantons in holography |
the hamiltonian operator plays a central role in quantum theory being a generator of unitary quantum dynamics. its expectation value describes the energy of a quantum system. typically being a nonunitary operator, the action of the hamiltonian is either encoded using complex ancilla-based circuits, or implemented effec... | hamiltonian operator approximation for energy measurement and ground-state preparation |
we study co-dimension two monodromy defects in theories of conformally coupled scalars and free dirac fermions in arbitrary d dimensions. we characterise this family of conformal defects by computing the one-point functions of the stress-tensor and conserved current for abelian flavour symmetries as well as two-point f... | monodromy defects in free field theories |
we study correlation functions of determinant-like operators in the "chiral algebra subsector" of four-dimensional n = 4 gauge theory with u(n) gauge group. we map the large n saddles of the correlation functions to specific semiclassical d-branes in the holographic dual bcov theory. we present a detailed match of seve... | giant gravitons in twisted holography |
we consider compactifications of very higgsable 6 d n =(1, 0) scfts on t 2 with non-trivial stiefel-whitney classes (or equivalently 't hooft magnetic fluxes) introduced for their flavor symmetry groups. these systems can also be studied as twisted s 1 compactifications of the corresponding 5d theories. we deduce vario... | compactifications of 6 d n = (1, 0) scfts with non-trivial stiefel-whitney classes |
we prove that the scattering equation formalism for yang-mills amplitudes can be used to make manifest the theory's color-kinematics duality. this is achieved through a concrete reduction algorithm which renders this duality manifest term-by-term. the reduction follows from the recently derived set of identities for am... | manifesting color-kinematics duality in the scattering equation formalism |
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