abstract stringlengths 3 192k | title stringlengths 4 857 |
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we study a generic class of fermionic two-band models under synchronized periodic driving, i.e., with the different terms in a hamiltonian subject to periodic drives with the same frequency and phase. with all modes initially in a maximally mixed state, the synchronized drive is found to produce nonperiodic patterns of... | floquet dynamical quantum phase transitions under synchronized periodic driving |
we perform a systematic, large-scale lattice simulation of d0-brane quantum mechanics. the large-n and continuum limits of the gauge theory are taken for the first time at various temperatures 0.4 ≤t ≤1.0 . as a way to test the gauge/gravity duality conjecture we compute the internal energy of the black hole as a funct... | precision lattice test of the gauge/gravity duality at large n |
in quantum many-body dynamics admitting a description in terms of noninteracting quasiparticles, the feynman-vernon influence matrix (im), encoding the effect of the system on the evolution of its local subsystems, can be analyzed exactly. for discrete dynamics, the temporal entanglement (te) of the corresponding im sa... | temporal entanglement, quasiparticles, and the role of interactions |
we propose the sachdev-ye-kitaev lindbladian as a paradigmatic solvable model of dissipative many-body quantum chaos. it describes n strongly coupled majorana fermions with random all-to-all interactions, with unitary evolution given by a quartic hamiltonian and the coupling to the environment described by m quadratic ... | lindbladian dissipation of strongly-correlated quantum matter |
the transverse-field ising model is one of the fundamental models in quantum many-body systems, yet a full understanding of its dynamics remains elusive in higher than one dimension. here, we show for the first time the breakdown of ergodicity in d -dimensional ising models with a weak transverse field in a prethermal ... | emergence of hilbert space fragmentation in ising models with a weak transverse field |
many important phenomena in quantum devices are dynamic, meaning that they cannot be studied using time-averaged measurements alone. experiments that measure such transient effects are collectively known as fast readout. one of the most useful techniques in fast electrical readout is radio-frequency reflectometry, whic... | probing quantum devices with radio-frequency reflectometry |
we provide a simple geometric meaning for deformations of so-called t 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 to modify the thermodynamic bethe ansatz equations by a "cdd factor". in turn, cd... | t t ¯ deformations and the width of fundamental particles |
an isolated quantum gas with a localized loss features a nonmonotonic behavior of the particle loss rate as an incarnation of the quantum zeno effect, as recently shown in experiments with cold atomic gases. while this effect can be understood in terms of local, microscopic physics, we show that novel many-body effects... | fluctuation-induced quantum zeno effect |
we show that long-range ferromagnetic interactions in quantum spin chains can induce spatial quasilocalization of topological magnetic defects, i.e., domain walls, even in the absence of quenched disorder. utilizing matrix-product-states numerical techniques, we study the nonequilibrium evolution of initial states with... | quasilocalized excitations induced by long-range interactions in translationally invariant quantum spin chains |
statistical physics provides the concepts and methods to explain the phase behavior of interacting many-body systems. investigations of lee-yang zeros—complex singularities of the free energy in systems of finite size—have led to a unified understanding of equilibrium phase transitions. the ideas of lee and yang, howev... | experimental determination of dynamical lee-yang zeros |
we study the holographic complexity of noncommutative field theories. the four-dimensional n=4 noncommutative super yang-mills theory with moyal algebra along two of the spatial directions has a well known holographic dual as a type iib supergravity theory with a stack of d3 branes and non-trivial ns-ns b fields. we st... | holographic complexity and noncommutative gauge theory |
quantum mechanics ascribes to the ground state of the electromagnetic radiation1 zero-point electric field fluctuations that permeate empty space at all frequencies. no energy can be extracted from the ground state of a system, and therefore these fluctuations cannot be measured directly with an intensity detector. the... | electric field correlation measurements on the electromagnetic vacuum state |
we test the eigenstate thermalization hypothesis (eth) for 2 +1 dimensional su(2) lattice gauge theory. by considering the theory on a chain of plaquettes and truncating basis states for link variables at j =1 /2 , we can map it onto a quantum spin chain with local interactions and numerically exactly diagonalize the h... | su(2) gauge theory in 2 +1 dimensions on a plaquette chain obeys the eigenstate thermalization hypothesis |
the control over quantum states in atomic systems has led to the most precise optical atomic clocks so far1-3. their sensitivity is bounded at present by the standard quantum limit, a fundamental floor set by quantum mechanics for uncorrelated particles, which can—nevertheless—be overcome when operated with entangled p... | quantum-enhanced sensing on optical transitions through finite-range interactions |
in the classical world, physical events always happen in a fixed causal order. however, it was recently revealed that quantum mechanics allows events to occur with indefinite causal order (ico). in this study, we use an optical quantum switch to experimentally investigate the application of ico in thermodynamic tasks. ... | quantum simulation of indefinite causal order induced quantum refrigeration |
phase transitions represent a compelling tool for classical and quantum sensing applications. it has been demonstrated that quantum sensors can in principle saturate the heisenberg scaling, the ultimate precision bound allowed by quantum mechanics, in the limit of large probe number and long measurement time. due to th... | critical quantum metrology with fully-connected models: from heisenberg to kibble-zurek scaling |
we utilize the concept of a measurement-induced entanglement transition to analyze the interplay and competition of processes that generate and destroy entanglement in a one-dimensional quantum spin chain evolving under a locally noisy and disordered hamiltonian. we employ continuous measurements of variable strength t... | diagnostics of entanglement dynamics in noisy and disordered spin chains via the measurement-induced steady-state entanglement transition |
the physics of interacting integer-spin chains has been a topic of intense theoretical interest, particularly in the context of symmetry-protected topological phases. however, there has not been a controllable model system to study this physics experimentally. we demonstrate how spin-dependent forces on trapped ions ca... | realization of a quantum integer-spin chain with controllable interactions |
we present a quantum hall effect of magnons in two-dimensional clean insulating magnets at finite temperature. through the aharonov-casher effect, a magnon moving in an electric field acquires a geometric phase and forms landau levels in an electric field gradient of sawtooth form. at low temperatures, the lowest energ... | magnonic quantum hall effect and wiedemann-franz law |
wireless technology relies on the conversion of alternating electromagnetic fields into direct currents, a process known as rectification. although rectifiers are normally based on semiconductor diodes, quantum mechanical non-reciprocal transport effects that enable a highly controllable rectification were recently dis... | giant magnetochiral anisotropy from quantum-confined surface states of topological insulator nanowires |
we derive the necessary and sufficient conditions for a 2d qcd theory of massless gluons and left and right chiral quarks in arbitrary representations of a gauge group g to develop a mass gap. these results are obtained from spectral properties of the lightcone and temporal qcd hamiltonians. the conditions can be expli... | infrared phases of 2d qcd |
linear optical quantum computing provides a desirable approach to quantum computing, with only a short list of required computational elements. the similarity between photons and phonons points to the interesting potential for linear mechanical quantum computing using phonons in place of photons. although single-phonon... | splitting phonons: building a platform for linear mechanical quantum computing |
we investigate a general scheme for generating, either dynamically or in the steady state, continuous variable entanglement between two mechanical resonators with different frequencies. we employ an optomechanical system in which a single optical cavity mode driven by a suitably chosen two-tone field is coupled to the ... | generation and detection of large and robust entanglement between two different mechanical resonators in cavity optomechanics |
we investigate the structure of the gravity-induced generalized uncertainty principle in three dimensions. the subtleties of lower-dimensional gravity, and its important differences concerning four and higher dimensions, are duly taken into account, by considering different possible candidates for the gravitational rad... | generalized uncertainty principle in three-dimensional gravity and the btz black hole |
we present the born-markov approximated redfield quantum master equation (rqme) description for an open system of noninteracting particles (bosons or fermions) on an arbitrary lattice of n sites in any dimension and weakly connected to multiple reservoirs at different temperatures and chemical potentials. the rqme can ... | out-of-equilibrium open quantum systems: a comparison of approximate quantum master equation approaches with exact results |
the classification of phase transitions is a central and challenging task in condensed matter physics. typically, it relies on the identification of order parameters and the analysis of singularities in the free energy and its derivatives. here, we propose an alternative framework to identify quantum phase transitions,... | unveiling phase transitions with machine learning |
quantum information science harnesses the principles of quantum mechanics to realize computational algorithms with complexities vastly intractable by current computer platforms. typical applications range from quantum chemistry to optimization problems and also include simulations for high energy physics. the recent ma... | quantum computing hardware for hep algorithms and sensing |
we identify a quantum critical point with fractal symmetry whose effective theory eludes the renormalization group framework. we consider the newman-moore model with three-body interaction subjected to an external transverse field, which exhibits a kramers-wannier type self-duality and a fractal $z_2$ symmetry with isi... | fractal quantum phase transitions: critical phenomena beyond renormalization |
we show that the simplest universality classes of fracton hydrodynamics in more than one spatial dimension, including isotropic theories of charge and dipole conservation, can exhibit hidden quasiconservation laws, in which certain higher multipole moments can only decay due to dangerously irrelevant corrections to hyd... | hidden quasiconservation laws in fracton hydrodynamics |
speed of state transitions in macroscopic systems is a crucial concept for foundations of nonequilibrium statistical mechanics as well as various applications in quantum technology represented by optimal quantum control. while extensive studies have made efforts to obtain rigorous constraints on dynamical processes sin... | speed limits for macroscopic transitions |
we examine the dynamics of a (1 +1 ) -dimensional measurement-only circuit defined by the stabilizers of the [[5,1,3]] quantum error correcting code interrupted by single-qubit pauli measurements. the code corrects arbitrary single-qubit errors and it stabilizes an area law entangled state with a d2=z2×z2 symmetry prot... | topological order and entanglement dynamics in the measurement-only xzzx quantum code |
it has been notoriously difficult to construct a meta-stable de sitter (ds) vacuum in string theory in a controlled approximation. this suggests the possibility that meta-stable ds belongs to the swampland. in this paper, we propose a swampland criterion in the form of $|\nabla v|\geq\ c \cdot v$ for a scalar potential... | de sitter space and the swampland |
it is well-known that six-dimensional superconformal field theories can be exploited to unravel interesting features of lower-dimensional theories obtained via compactifications. in this short note we discuss a new application of 6d (2,0) theories in constructing 4d theories with kramers-wannier-like non-invertible sym... | on the 6d origin of non-invertible symmetries in 4d |
the swampland program aims to determine the constraints that an effective field theory must satisfy to be consistent with a uv embedding in a quantum gravity theory. different proposals have been formulated in the form of swampland conjectures. in these lecture notes, we provide a pedagogical introduction to the most i... | lectures on the swampland program in string compactifications |
we present exact results for partition functions of jackiw-teitelboim (jt) gravity on two-dimensional surfaces of arbitrary genus with an arbitrary number of boundaries. the boundaries are of the type relevant in the nads${}_2$/ncft${}_1$ correspondence. we show that the partition functions correspond to the genus expa... | jt gravity as a matrix integral |
a q-form global symmetry is a global symmetry for which the charged operators are of space-time dimension q; e.g. wilson lines, surface defects, etc., and the charged excitations have q spatial dimensions; e.g. strings, membranes, etc. many of the properties of ordinary global symmetries ( q = 0) apply here. they lead ... | generalized global symmetries |
we give a brief overview of the string landscape and techniques used to construct string compactifications. we then explain how this motivates the notion of the swampland and review a number of conjectures that attempt to characterize theories in the swampland. we also compare holography in the context of superstrings ... | the string landscape, the swampland, and the missing corner |
we provide an overview of the string landscape and the swampland program. our review of the string landscape covers the worldsheet and spacetime perspectives, including vacua and string dualities. we then review and motivate the swampland program from the lessons learned from the string landscape. these lecture notes a... | lectures on the string landscape and the swampland |
these notes consist of 3 lectures on celestial holography given at the pre-strings school 2021. we start by reviewing how semiclassically, the subleading soft graviton theorem implies an enhancement of the lorentz symmetry of scattering in four-dimensional asymptotically flat gravity to virasoro. this leads to the cons... | lectures on celestial holography |
we revisit the symmetries of massless two-dimensional adjoint qcd with gauge group su(n). the dynamics is not sufficiently constrained by the ordinary symmetries and anomalies. here we show that the theory in fact admits ∼ 22n non-invertible symmetries which severely constrain the possible infrared phases and massive e... | symmetries and strings of adjoint qcd2 |
we determine the d +1 dimensional topological field theory, which encodes the higher-form symmetries and their 't hooft anomalies for d-dimensional qfts obtained by compactifying m-theory on a non-compact space x. the resulting theory, which we call the symmetry tft, or symtft for short, is derived by reducing the topo... | symmetry tfts from string theory |
it is known that the 't hooft anomalies of invertible global symmetries can be characterized by an invertible tqft in one higher dimension. the analogous statement remains to be understood for non-invertible symmetries. in this note we discuss how the linking invariants in a non-invertible tqft known as the symmetry tf... | symmetry tfts and anomalies of non-invertible symmetries |
su( n ) gauge theory is time reversal invariant at θ = 0 and θ = π. we show that at θ = π there is a discrete 't hooft anomaly involving time reversal and the center symmetry. this anomaly leads to constraints on the vacua of the theory. it follows that at θ = π the vacuum cannot be a trivial non-degenerate gapped stat... | theta, time reversal and temperature |
it is widely believed that consistent theories of quantum gravity satisfy two basic kinematic constraints: they are free from any global symmetry, and they contain a complete spectrum of gauge charges. for compact, abelian gauge groups, completeness follows from the absence of a 1-form global symmetry. however, this co... | non-invertible global symmetries and completeness of the spectrum |
in axion-maxwell theory at the minimal axion-photon coupling, we find non-invertible 0- and 1-form global symmetries arising from the naive shift and center symmetries. since the gauss law is anomalous, there is no conserved, gauge-invariant, and quantized electric charge. rather, using half higher gauging, we find a n... | non-invertible gauss law and axions |
we show that the wannier obstruction and the fragile topology of the nearly flat bands in twisted bilayer graphene at magic angle are manifestations of the nontrivial topology of two-dimensional real wave functions characterized by the euler class. to prove this, we examine the generic band topology of two-dimensional ... | failure of nielsen-ninomiya theorem and fragile topology in two-dimensional systems with space-time inversion symmetry: application to twisted bilayer graphene at magic angle |
the quantum approximate optimization algorithm (qaoa) is designed to run on a gate model quantum computer and has shallow depth. it takes as input a combinatorial optimization problem and outputs a string that satisfies a high fraction of the maximum number of clauses that can be satisfied. for certain problems the low... | quantum supremacy through the quantum approximate optimization algorithm |
we analyze four-dimensional quantum field theories with continuous 2-group global symmetries. at the level of their charges, such symmetries are identical to a product of continuous flavor or spacetime symmetries with a 1-form global symmetry u(1)b(1) , which arises from a conserved 2-form current jb(2) . rather, 2-gro... | exploring 2-group global symmetries |
it has been conjectured that in theories consistent with quantum gravity infinite distances in field space coincide with an infinite tower of states becoming massless exponentially fast in the proper field distance. the complex-structure moduli space of calabi-yau manifolds is a good testing ground for this conjecture ... | infinite distances in field space and massless towers of states |
we consider topological defect lines (tdls) in two-dimensional conformal field theories. generalizing and encompassing both global symmetries and verlinde lines, tdls together with their attached defect operators provide models of fusion categories without braiding. we study the crossing relations of tdls, discuss thei... | topological defect lines and renormalization group flows in two dimensions |
in general quantum field theories (qfts), ordinary (0-form) global symmetries and 1-form symmetries can combine into 2-group global symmetries. we describe this phenomenon in detail using the language of symmetry defects. we exhibit a simple procedure to determine the (possible) 2-group global symmetry of a given qft, ... | on 2-group global symmetries and their anomalies |
we propose a general framework to characterize gapped infra-red (ir) phases of theories with non-invertible (or categorical) symmetries. in this paper we focus on (1+1)d gapped phases with fusion category symmetries. the approach that we propose uses the symmetry topological field theory (symtft) as a key input: associ... | gapped phases with non-invertible symmetries: (1+1)d |
what does it mean for a boundary condition to be symmetric with respect to a noninvertible global symmetry? we discuss two possible definitions in 1 +1 d qfts and lattice models. on the one hand, we call a boundary weakly symmetric if the symmetry defects can terminate topologically on it, leading to conserved operator... | remarks on boundaries, anomalies, and noninvertible symmetries |
five- and four-dimensional superconformal field theories with eight supercharges arise from canonical threefold singularities in m-theory and type iib string theory, respectively. we study their coulomb and higgs branches using crepant resolutions and deformations of the singularities. we propose a relation between the... | coulomb and higgs branches from canonical singularities. part 0 |
the modern approach to m-form global symmetries in a d-dimensional quantum field theory (qft) entails specifying dimension topological generalized symmetry operators which non-trivially link with m-dimensional defect operators. in qfts engineered via string constructions on a non-compact geometry x, these defects desce... | the branes behind generalized symmetry operators |
conventional computers operate deterministically using strings of zeros and ones called bits to represent information in binary code. despite the evolution of conventional computers into sophisticated machines, there are many classes of problems that they cannot efficiently address, including inference, invertible logi... | integer factorization using stochastic magnetic tunnel junctions |
we study systems with an adler-bell-jackiw anomaly in terms of non-invertible symmetry. we present a new kind of non-invertible charge defect where a key role is played by a local current operator localized on the defect. the charge defects are now labeled by elements of a continuous (1). we use this construction to pr... | a goldstone theorem for continuous non-invertible symmetries |
we make an ansatz for the mellin representation of the four-point amplitude of half-bps operators of arbitrary charges at order λ-5/2 in an expansion around the supergravity limit. crossing symmetry and a set of constraints on the form of the spectrum uniquely fix the amplitude and double-trace anomalous dimensions at ... | bootstrapping string theory on ads5×s5 |
hamiltonian formulation of lattice gauge theories (lgts) is the most natural framework for the purpose of quantum simulation, an area of research that is growing with advances in quantum-computing algorithms and hardware. it, therefore, remains an important task to identify the most accurate, while computationally econ... | search for efficient formulations for hamiltonian simulation of non-abelian lattice gauge theories |
motivated by the recent cdf measurement of the w-boson mass, we study string-based particle physics models which can accommodate this deviation from the standard model. we consider an f-theory gut in which the visible sector is realized on intersecting 7-branes, and extra sector states arise from a probe d3-brane near ... | extra w-boson mass from a d3-brane |
we study how non-invertible self-duality defects arise in theories with a holographic dual. we focus on the paradigmatic example of $\mathfrak{su}(n)$ $\mathcal{n} = 4$ sym. the theory is known to have non-invertible duality and triality defects at $\tau =i$ and $\tau = e^{2 \pi i /3}$, respectively. at these points in... | the holography of non-invertible self-duality symmetries |
canonical threefold singularities in m-theory and type iib string theory give rise to superconformal field theories (scfts) in 5d and 4d, respectively. in this paper, we study canonical hypersurface singularities whose resolutions contain residual terminal singularities and/or 3-cycles. we focus on a certain class of `... | 5d and 4d scfts: canonical singularities, trinions and s-dualities |
we review the properties of orbifold operations on two-dimensional quantum field theories, either bosonic or fermionic, and describe the "orbifold groupoids" which control the composition of orbifold operations. three-dimensional tqft's of dijkgraaf-witten type will play an important role in the analysis. we briefly di... | orbifold groupoids |
we study properties of self-duality symmetry in the cardy-rabinovici model. the cardy-rabinovici model is the 4d u(1) gauge theory with electric and magnetic matters, and it enjoys the sl(2, &z;) self-duality at low-energies. sl(2, &z;) self-duality does not realize in a naive way, but we notice that the stp duality tr... | non-invertible self-duality defects of cardy-rabinovici model and mixed gravitational anomaly |
we propose a new program for computing a certain integrand of scattering amplitudes of four-dimensional gauge theories which we call the form factor integrand, starting from 6d holomorphic theories on twistor space. we show that the form factor integrands can be expressed as sums of products of 1.) correlators of a 2d ... | celestial holography meets twisted holography: 4d amplitudes from chiral correlators |
superstring theory on {ads}_3 × {s}^3× t^4 with the smallest amount of ns-ns flux (" k = 1") is shown to be dual to the spacetime cft given by the large n limit of the free symmetric product orbifold sym n(t^4) . to define the worldsheet theory at k = 1, we employ the hybrid formalism in which the ads3 × s3 part is des... | the worldsheet dual of the symmetric product cft |
it was recently argued that string theory on ads3× s3× 𝕋4 with one unit (k = 1) of ns-ns flux is exactly dual to the symmetric orbifold cft symn (𝕋4). in this paper we show how to directly relate the n-point correlators of the two sides to one another. in particular, we argue that the correlators of the world-sheet t... | deriving the ads3/cft2 correspondence |
flavor symmetry plays a crucial role in the standard model of particle physics but its origin is still unknown. we develop a new method (based on outer automorphisms of the narain space group) to determine flavor symmetries within compactified string theory. a picture emerges where traditional (discrete) flavor symmetr... | unification of flavor, cp, and modular symmetries |
compactification of m-theory and of iib string theory on threefold canonical singularities gives rise to superconformal field theories (scfts) in 5d and 4d, respectively. the resolutions and deformations of the singularities encode salient features of the scfts and of their moduli spaces. in this paper, we build on par... | coulomb and higgs branches from canonical singularities. part i. hypersurfaces with smooth calabi-yau resolutions |
for a field theory with a gravitational dual, following susskind's proposal we define holographic complexity for a subsystem. the holographic complexity is proportional to the volume of a codimension one time slice in the bulk geometry enclosed by the extremal codimension two hypersurface appearing in the computation o... | holographic complexity |
for 2-2 scattering in quantum field theories, the usual fixed t dispersion relation exhibits only two-channel symmetry. this letter considers a crossing symmetric dispersion relation, reviving certain old ideas from the 1970s. rather than the fixed t dispersion relation, this needs a dispersion relation in a different ... | crossing symmetric dispersion relations in quantum field theories |
we study propagation of a probe particle through a series of closely situated gravitational shocks. we argue that in any uv-complete theory of gravity the result does not depend on the shock ordering — in other words, coincident gravitational shocks commute. shock commutativity leads to nontrivial constraints on low-en... | shocks, superconvergence, and a stringy equivalence principle |
hyperbolic geometry on the one-bordered torus is numerically uniformized using liouville theory. this geometry is relevant for the hyperbolic string tadpole vertex describing the one-loop quantum corrections of closed string field theory. we argue that the lamé equation, upon fixing its accessory parameter via polyakov... | hyperbolic string tadpole |
in this lecture note, we give a basic introduction to the rapidly developing concepts of generalized symmetries, from the perspectives of both high energy physics and condensed matter physics. in particular, we emphasize on the (invertible) higher-form and higher-group symmetries. for the physical applications, we disc... | lecture notes on generalized symmetries and applications |
we study su( n ) quantum chromodynamics (qcd) in 3+1 dimensions with nfdegenerate fundamental quarks with mass m and a θ-parameter. for generic m and θ the theory has a single gapped vacuum. however, as θ is varied through θ = π for large m there is a first order transition. for nf= 1 the first order transition line en... | time-reversal breaking in qcd4, walls, and dualities in 2 + 1 dimensions |
the search for a theory of the s-matrix over the past five decades has revealed surprising geometric structures underlying scattering amplitudes ranging from the string worldsheet to the amplituhedron, but these are all geometries in auxiliary spaces as opposed to the kinematical space where amplitudes actually live. m... | scattering forms and the positive geometry of kinematics, color and the worldsheet |
it was noticed many years ago, in the framework of massless rg flows, that the irrelevant composite operator toverline{t} , built with the components of the energy-momentum tensor, enjoys very special properties in 2d quantum field theories, and can be regarded as a peculiar kind of integrable perturbation. novel inter... | toverline{t} -deformed 2d quantum field theories |
we construct the defining data of two-dimensional topological field theories (tfts) enriched by non-invertible symmetries/topological defect lines. simple formulae for the three-point functions and the lasso two-point functions are derived, and crossing symmetry is proven. the key ingredients are open-to-closed maps an... | construction of two-dimensional topological field theories with non-invertible symmetries |
we elaborate on various aspects of our top-down celestial holographic duality wherein the semiclassical bulk spacetime is a 4d asymptotically flat, self-dual kähler geometry known as burns space. the bulk theory includes an open string sector comprising a 4d wzw model and a closed string sector called "mabuchi gravity"... | burns space and holography |
the distance conjecture holds that any infinite-distance limit in the scalar field moduli space of a consistent theory of quantum gravity must be accompanied by a tower of light particles whose masses scale exponentially with proper field distance ‖ϕ‖ as m ~ exp(−λ‖ϕ‖), where λ is order-one in planck units. while the e... | sharpening the distance conjecture in diverse dimensions |
recent data from neutrino experiments gives intriguing hints about the mass ordering, the cp violating phase and non-maximal atmospheric mixing. there seems to be a (one sigma) preference for a normal ordered (no) neutrino mass pattern, with a cp phase δ = - 100 ° ± 50 °, and (more significantly) non-maximal atmospheri... | unified models of neutrinos, flavour and cp violation |
we study higher-form symmetries in 5d quantum field theories, whose charged operators include extended operators such as wilson line and 't hooft operators. we outline criteria for the existence of higher-form symmetries both from a field theory point of view as well as from the geometric realization in m-theory on non... | higher-form symmetries in 5d |
infinite distance limits in the moduli space of a quantum gravity theory are characterized by having infinite towers of states becoming light, as dictated by the distance conjecture in the swampland program. these towers imply a drastic breakdown in the perturbative regimes of the effective field theory at a quantum gr... | stringy evidence for a universal pattern at infinite distance |
we introduce a critical string theory in two dimensions and demonstrate that this theory, viewed as two-dimensional quantum gravity on the worldsheet, is equivalent to a double-scaled matrix integral. the worldsheet theory consists of liouville cft with central charge $c\geq 25$ coupled to timelike liouville cft with c... | the virasoro minimal string |
a single m5-brane probing g, an ade-type singularity, leads to a system which has g × g global symmetry and can be viewed as "bifundamental" ( g, g) matter. for the anseries, this leads to the usual notion of bifundamental matter. for the other cases it corresponds to a strongly interacting (1 , 0) superconformal syste... | 6d conformal matter |
a relative theory is a boundary condition of a higher-dimensional topological quantum field theory (tqft), and carries a non-trivial defect group formed by mutually non-local defects living in the relative theory. prime examples are 6d6d\mathcal{n}=(2,0)𝒩=(2,0) theories that are boundary conditions of 7d7d tqfts, with... | relative defects in relative theories: trapped higher-form symmetries and irregular punctures in class s |
swampland criteria like the weak gravity conjecture should not only apply to particles, but also to other lower-codimension charged objects in 4d efts like strings and membranes. however, the description of the latter is in general subtle due to their large backreaction effects. in the context of 4d n = 1 efts, we cons... | swampland conjectures for strings and membranes |
we show that the strong cp problem is solved in a large class of compactifications of string theory. the peccei-quinn mechanism solves the strong cp problem if the cp-breaking effects of the ultraviolet completion of gravity and of qcd are small compared to the cp-preserving axion potential generated by low-energy qcd ... | pq axiverse |
we introduce a novel measure for the quantum property of "nonstabilizerness"—commonly known as "magic"—by considering the rényi entropy of the probability distribution associated to a pure quantum state given by the square of the expectation value of pauli strings in that state. we show that this is a good measure of n... | stabilizer rényi entropy |
motivated by the prospect of constraining microscopic models, we calculate the exact one-loop corrected de sitter entropy (the logarithm of the sphere partition function) for every effective field theory of quantum gravity, with particles in arbitrary spin representations. in doing so, we universally relate the sphere ... | quantum de sitter horizon entropy from quasicanonical bulk, edge, sphere and topological string partition functions |
we construct supersymmetric ads4 vacua of type iib string theory in compactifications on orientifolds of calabi-yau threefold hypersurfaces. we first find explicit orientifolds and quantized fluxes for which the superpotential takes the form proposed by kachru, kallosh, linde, and trivedi. given very mild assumptions o... | small cosmological constants in string theory |
we propose a graph-based approach to 5d superconformal field theories (scfts) based on their realization as m-theory compactifications on singular elliptic calabi-yau threefolds. field-theoretically, these 5d scfts descend from 6d n = (1, 0) scfts by circle compactification and mass deformations. we derive a descriptio... | fibers add flavor. part i. classification of 5d scfts, flavor symmetries and bps states |
we explore the emergence proposal for the moduli metric and the gauge couplings in a concrete model with 7 saxionic and 7 axionic moduli fields, namely the compactification of the type iia superstring on a 6-dimensional toroidal orbifold. we show that consistency requires integrating out precisely the 12 towers of ligh... | the emergence proposal and the emergent string |
dual resonance is one of the great miracles of string theory. at a fundamental level, it implies that the particles exchanged in different channels are subtly equivalent. furthermore, it is inextricably linked to the property of exceptionally tame high-energy behavior. in this paper, we present explicit, closed-form ex... | bespoke dual resonance |
consistent formulations of relativistic viscous hydrodynamics involve short-lived modes, leading to asymptotic rather than convergent gradient expansions. in this letter we consider the müller-israel-stewart theory applied to a longitudinally expanding quark-gluon plasma system and identify hydrodynamics as a universal... | hydrodynamics beyond the gradient expansion: resurgence and resummation |
as a refinement of the swampland distance conjecture, we propose that a quantum gravitational theory in an infinite distance limit of its moduli space either decompactifies, or reduces to an asymptotically tensionless, weakly coupled string theory. we support our claim by classifying, as special cases, the behaviour of... | emergent strings from infinite distance limits |
we examine six-dimensional quantum field theories through the lens of higher-form global symmetries. every yang-mills gauge theory in six dimensions, with field strength f(2), naturally gives rise to a continuous 1-form global symmetry associated with the 2-form instanton current j(2)∼ ∗tr (f(2) ∧ f(2)). we show that s... | 2-group global symmetries and anomalies in six-dimensional quantum field theories |
we compute the large-n limit of the qcd chiral condensate on the lattice using twisted reduced models, and performing controlled continuum and chiral extrapolations. we perform two different calculations: one consists in extracting the chiral condensate from the quark mass dependence of the pion mass, and the other con... | the large-n limit of the chiral condensate from twisted reduced models |
mixed anomalies, higher form symmetries, two-group symmetries and non-invertible symmetries have proved to be useful in providing non-trivial constraints on the dynamics of quantum field theories. we study mixed anomalies involving discrete zero-form global symmetries, and possibly a one-form symmetry, in 3d n ≥ 3 gaug... | mixed anomalies, two-groups, non-invertible symmetries, and 3d superconformal indices |
recent years have seen the emergence of a new understanding of scattering amplitudes in the simplest theory of colored scalar particles - the tr$(\phi^3)$ theory - based on combinatorial and geometric ideas in the kinematic space of scattering data. in this paper we report a surprise: far from the toy model it appears ... | hidden zeros for particle/string amplitudes and the unity of colored scalars, pions and gluons |
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