abstract stringlengths 3 192k | title stringlengths 4 857 |
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we consider the four-point function of the stress tensor multiplet superprimary in n = 4 super-yang-mills (sym) with gauge group su(n ) in the large n and large 't hooft coupling λ ≡gym2n limit, which is holographically dual to the genus expansion of iib string theory on ads5× s5. in [1] it was shown that the integral ... | genus-2 holographic correlator on ads5× s5 from localization |
we present a constructive method to compute the ads virasoro-shapiro amplitude, order by order in ads curvature corrections. at kth order the answer takes the form of a genus zero world-sheet integral involving weight 3k single-valued multiple polylogarithms. the coefficients in our ansatz are fixed, order by order, by... | the ads virasoro-shapiro amplitude |
on-shell kinematics for gluon scattering can be parametrized with points on the celestial sphere; in the limit where these points collide, it is known that tree-level gluon scattering amplitudes exhibit an operator product expansion (ope)-like structure. while it is possible to obtain singular contributions to this cel... | all-order celestial ope in the mhv sector |
we introduce a class of gapped three-dimensional models, dubbed "cage-net fracton models," which host immobile fracton excitations in addition to non-abelian particles with restricted mobility. starting from layers of two-dimensional string-net models, whose spectrum includes non-abelian anyons, we condense extended on... | cage-net fracton models |
we study the modular symmetry in magnetized d-brane models on t2 . non-abelian flavor symmetry d4 in the model with magnetic flux m =2 (in a certain unit) is a subgroup of the modular symmetry. we also study the modular symmetry in heterotic orbifold models. the t2/z4 orbifold model has the same modular symmetry as the... | modular symmetry and non-abelian discrete flavor symmetries in string compactification |
we construct supersymmetric ads5 × σ solutions of d = 7 gauged supergravity, where σ is a two-dimensional orbifold known as a spindle. these uplift on s4 to solutions of d = 11 supergravity which have orbifold singularites. we argue that the solutions are dual to d = 4, n = 1 scfts that arise from n m5-branes wrapped o... | m5-branes wrapped on a spindle |
using target space null reduction of the polyakov action, we find a novel covariant action for strings moving in a torsional newton-cartan geometry. sending the string tension to zero while rescaling the newton-cartan clock 1-form, so as to keep the string action finite, we obtain a nonrelativistic string moving in a n... | nonrelativistic strings and limits of the ads/cft correspondence |
in this review article, we discuss the distinction and possible equivalence between scale invariance and conformal invariance in relativistic quantum field theories. under some technical assumptions, we can prove that scale invariant quantum field theories in d = 2 space-time dimensions necessarily possess the enhanced... | scale invariance vs conformal invariance |
we continue our study of string theory in a background that interpolates between ads3 in the infrared and a linear dilaton spacetime r 1 , 1 ×rϕ in the uv. this background corresponds via holography to a cft2 deformed by a certain irrelevant operator of dimension (2 , 2). we show that for two point functions of local o... | holography beyond ads |
we study possible applications of artificial neural networks to examine the string landscape. since the field of application is rather versatile, we propose to dynamically evolve these networks via genetic algorithms. this means that we start from basic building blocks and combine them such that the neural network perf... | evolving neural networks with genetic algorithms to study the string landscape |
quantum field theories with identical local dynamics can admit different choices of global structure, leading to different partition functions and spectra of extended operators. such choices can be reformulated in terms of a topological field theory in one dimension higher, the symmetry tft. in this paper we show that ... | global structures from the infrared |
in this pedagogical review we introduce systematic approaches to deforming integrable two-dimensional sigma models. we use the integrable principal chiral model and the conformal wess-zumino-witten model as our starting points and explore their yang-baxter and current-current deformations. there is an intricate web of ... | integrable deformations of sigma models |
we study higher symmetries and anomalies of 4d so (2nc) gauge theory with 2nf flavors. we find that they depend on the parity of nc and nf, the global form of the gauge group, and the discrete theta angle. the contribution from the fermions plays a central role in our analysis. furthermore, our conclusion applies to n ... | matching higher symmetries across intriligator-seiberg duality |
we analyze in detail the global symmetries of various (2 + 1) d quantum field theories and couple them to classical background gauge fields. a proper identification of the global symmetries allows us to consider all non-trivial bundles of those background fields, thus finding more subtle observables. the global symmetr... | comments on global symmetries, anomalies, and duality in (2 + 1) d |
recent works have explored how scattering amplitudes in quantum self-dual yang-mills theory and self-dual gravity can be interpreted as resulting from an anomaly, as first proposed by w. bardeen. we study this problem in the light-cone-gauge formulation of the theories. firstly, we describe how the infinite tower of sy... | anomaly and double copy in quantum self-dual yang-mills and gravity |
by applying the covariant entropy bound (ceb) to an eft in a box of size 1/λir one obtains that the uv and ir cut-offs of the eft are necessarily correlated. we argue that in a theory of quantum gravity (qg) one should identify the uv cutoff with the `species scale', and give a general algorithm to calculate it in the ... | ir/uv mixing, towers of species and swampland conjectures |
we study and extend the duality web unifying different decoupling limits of type ii superstring theories and m-theory. we systematically build connections to different corners, such as matrix theories, nonrelativistic string and m-theory, tensionless (and ambitwistor) string theory, carrollian string theory, and spin m... | unification of decoupling limits in string and m-theory |
we study a symmetry breaking of residual flavor symmetries realized at fixed points of the moduli space. in the supersymmetric modular invariant theories, a small departure of the modulus from fixed points is required to realize fermion mass hierarchies and sizable cp-breaking effects. we investigate whether one can dy... | residual flavor symmetry breaking in the landscape of modular flavor models |
bondi-metzner-sachs (bms) symmetries, or equivalently conformal carroll symmetries, are intrinsically associated to null manifolds and in two dimensions can be obtained as an inönü-wigner contraction of the two-dimensional (2d) relativistic conformal algebra. instead of performing contractions, we demonstrate in this p... | boosting to bms |
we use machine learning to approximate calabi-yau and su(3)-structure metrics, including for the first time complex structure moduli dependence. our new methods furthermore improve existing numerical approximations in terms of accuracy and speed. knowing these metrics has numerous applications, ranging from computation... | moduli-dependent calabi-yau and su(3)-structure metrics from machine learning |
it is possible to describe fermionic phases of matter and spin-topological field theories in 2+1 d in terms of bosonic "shadow" theories, which are obtained from the original theory by "gauging fermionic parity". the fermionic/spin theories are recovered from their shadow by a process of fermionic anyon condensation: g... | state sum constructions of spin-tfts and string net constructions of fermionic phases of matter |
we employ the free field realisation of the psu (1 1 |2 )1 world-sheet theory to constrain the correlators of string theory on ads3× s3× 𝕋4 with unit ns-ns flux. in particular, we directly obtain the unusual delta function localisation of these correlators onto branched covers of the boundary s2 by the (genus zero) wo... | free field world-sheet correlators for ads3 |
we consider the correlation functions of coulomb branch operators in four-dimensional n = 2 superconformal field theories (scfts) involving exactly one antichiral operator. these extremal correlators are the "minimal" non-holomorphic local observables in the theory. we show that they can be expressed in terms of certai... | correlation functions of coulomb branch operators |
a review of the theoretical and experimental status of hybrid hadrons is presented. the states π1(1400) , π1(1600) , and π1(2015) are thoroughly reviewed, along with experimental results from gams, ves, obelix, compass, kek, cleo, crystal barrel, clas, and bnl. theoretical lattice results on the gluelump spectrum, adia... | hybrid mesons |
we consider the structure of current and stress tensor two-point functions in conformal field theory with a boundary. the main result of this paper is a relation between a boundary central charge and the coefficient of a displacement operator correlation function in the boundary limit. the boundary central charge under... | boundary conformal field theory and a boundary central charge |
complex ginzburg-landau (cgl) equations serve as canonical models in a great variety of physical settings, such as nonlinear photonics, dynamical phase transitions, superconductivity, superfluidity, hydrodynamics, plasmas, bose-einstein condensates, liquid crystals, field-theory strings, etc. this article provides a re... | ginzburg-landau models of nonlinear electric transmission networks |
foliated fracton order is a qualitatively new kind of phase of matter. it is similar to topological order, but with the fundamental difference that a layered structure, referred to as a foliation, plays an essential role and determines the mobility restrictions of the topological excitations. in this work, we introduce... | foliated field theory and string-membrane-net condensation picture of fracton order |
motivated by physical constructions of homological knot invariants, we study their analogs for closed 3-manifolds. we show that fivebrane compactifications provide a universal description of various old and new homological invariants of 3-manifolds. in terms of 3d/3d correspondence, such invariants are given by the q-c... | fivebranes and 3-manifold homology |
we continue the exploration of nonstandard continuum field theories related to fractons in 3+1 dimensions. our theories exhibit exotic global and gauge symmetries, defects with restricted mobility, and interesting dualities. depending on the model, the defects are the probe limits of either fractonic particles, strings... | more exotic field theories in 3+1 dimensions |
we study charm production in ultrarelativistic heavy-ion collisions by using the parton-hadron-string dynamics (phsd) transport approach. the initial charm quarks are produced by the pythia event generator tuned to fit the transverse-momentum spectrum and rapidity distribution of charm quarks from fixed-order next-to-l... | tomography of the quark-gluon plasma by charm quarks |
we study a 3d lattice gauge theory with gauge group u(1)n−1 ⋊ sn, which is obtained by gauging the sn global symmetry of a pure u(1)n−1 gauge theory, and we call it the semi-abelian gauge theory. we compute mass gaps and string tensions for both theories using the monopole-gas description. we find that the effective po... | semi-abelian gauge theories, non-invertible symmetries, and string tensions beyond n-ality |
we discuss some basic aspects of effective field theory applied to supergravity theories which arise in the low-energy limit of string theory. our discussion is particularly relevant to the effective field theories of no-scale supergravities that break supersymmetry, including those that appear in constructing de sitte... | a comment on effective field theories of flux vacua |
we determine the structure of 1-form symmetries for all 4d n = 2 theories that have a geometric engineering in terms of type iib string theory on isolated hypersurface singularities. this is a large class of models, that includes argyres-douglas theories and many others. despite the lack of known gauge theory descripti... | higher form symmetries of argyres-douglas theories |
we review and develop the general properties of $l_\infty$ algebras focusing on the gauge structure of the associated field theories. motivated by the $l_\infty$ homotopy lie algebra of closed string field theory and the work of roytenberg and weinstein describing the courant bracket in this language we investigate the... | l∞ algebras and field theory |
we analyze to which extent the kklt proposal for the construction of de sitter vacua in string theory is quantitatively controlled. our focus is on the quality of the 10d supergravity approximation. as our main finding, we uncover and quantify an issue which one may want to call the "singular‑bulk problem". in particul... | control issues of kklt |
we prove a formula for the hodge numbers of square‑free divisors of calabi‑yau threefold hypersurfaces in toric varieties. euclidean branes wrapping divisors affect the vacuum structure of calabi‑yau compactifications of type iib string theory, m‑theory, and f‑theory. determining the nonperturbative couplings due to eu... | the hodge numbers of divisors of calabi‑yau threefold hypersurfaces |
we consider the su(n) yang-mills theory, whose topological sectors are restricted to the instanton number with integer multiples of p. we can formulate such a quantum field theory maintaining locality and unitarity, and the model contains both 2π-periodic scalar and 3-form gauge fields. this can be interpreted as coupl... | modified instanton sum in qcd and higher-groups |
the scattering equations provide a powerful framework for the study of scattering amplitudes in a variety of theories. their derivation from ambitwistor string theory led to proposals for formulae at one loop on a torus for 10 dimensional supergravity, and we recently showed how these can be reduced to the riemann sphe... | one-loop amplitudes on the riemann sphere |
the swampland cobordism conjecture successfully predicts the supersymmetric spectrum of 7-branes of iib/f-theory. including reflections on the f-theory torus, it also predicts the existence of new nonsupersymmetric objects, which we dub reflection 7-branes (r7-branes). we present evidence that these r7-branes only exis... | iib string theory explored: reflection 7-branes |
we describe an analytic procedure whereby scattering amplitudes are bootstrapped directly from an input mass spectrum and a handful of physical constraints: crossing symmetry, boundedness at high energies, and finiteness of exchanged spins. for an integer spectrum, this procedure gives a first principles derivation of ... | stringy dynamics from an amplitudes bootstrap |
recently it has been conjectured that string theory does not allow for ds vacua or ds extrema. to scrutinize such a conjecture, it is important to study concrete string theory compactifications and spell out their assumptions and potential shortcomings. we do so for one particular class of string compactifications, nam... | de sitter extrema and the swampland |
string and 5-brane junctions are shown to succinctly classify all known 8d n =1 string vacua. this requires an extension of the description for ordinary [p ,q ]-7-branes to consistently include o 7+ planes, which then naturally encodes the dynamics of spn gauge algebras, including their p -form center symmetries. centr... | all eight- and nine-dimensional string vacua from junctions |
we determine the constraints imposed on the 10d target superspace geometry by the requirement of classical kappa-symmetry of the green-schwarz superstring. in the type i case we find that the background must satisfy a generalization of type i supergravity equations. these equations depend on an arbitrary vector xaand i... | kappa-symmetry of superstring sigma model and generalized 10d supergravity equations |
recently a novel hadronic state of mass 6.9 gev, that decays mainly to a pair of charmonia, was observed in lhcb. the data also reveals a broader structure centered around 6490 mev and suggests another unconfirmed resonance centered at around 7240 mev, very near to the threshold of two doubly charmed ξcc baryons. we ar... | deciphering the recently discovered tetraquark candidates around 6.9 gev |
we construct a family of 3d quantum field theories $\mathcal t_{n,k}^a$ that conjecturally provide a physical realization -- and derived generalization -- of non-semisimple mathematical tqft's based on the modules for the quantum group $u_q(\mathfrak{sl}_n)$ at an even root of unity $q=\text{exp}(i\pi/k)$. the theories... | a qft for non-semisimple tqft |
i study the two-dimensional defects of the d dimensional critical o(n) model and the defect rg flows between them. by combining the ϵ-expansion around d = 4 and d = 6 as well as large n techniques, i find new conformal defects and examine their behavior across dimensions and at various n. i discuss how some of these fi... | surface defects in the o(n) model |
in this work we study ten-dimensional solutions to type iia string theory of the form ads4 × x6 which contain orientifold planes and preserve n = 1 supersymmetry. in particular, we consider solutions which exhibit some key features of the four-dimensional dgkt proposal for compactifications on calabi-yau manifolds with... | on supersymmetric ads4 orientifold vacua |
string theory axions are interesting candidates for fields whose potential might be controllable over super-planckian field ranges and therefore as possible candidates for inflatons in large field inflation. axion monodromy scenarios are setups where the axion shift symmetry is broken by some effect such that the axion... | backreacted axion field ranges in string theory |
we investigate the swampland distance conjecture (sdc) in the complex moduli space of type ii compactifications on one-parameter calabi-yau threefolds. this class of manifolds contains hundreds of examples and, in particular, a subset of 14 geometries with hypergeometric differential picard-fuchs operators. of the four... | swampland distance conjecture for one-parameter calabi-yau threefolds |
we present how the surface-state correspondence, conjectured by miyaji and takayanagi, works in the setup of ads3/cft2 by generalizing the formulation of a continuous multiscale entanglement renormalization group ansatz. the boundary states in conformal field theories play a crucial role in our formulation and the bulk... | continuous multiscale entanglement renormalization ansatz as holographic surface-state correspondence |
we present strong evidence that the tree level slow roll bounds of arxiv:1807.05193 and arxiv:1810.05506 are valid, even when the tachyon has overlap with the volume of the cycle wrapped by the orientifold. this extends our previous results in the volume-dilaton subspace to a semi-universal modulus. emboldened by this ... | bounds on slow roll at the boundary of the landscape |
quantum field theories (qft) in the presence of defects exhibit new types of anomalies which play an important role in constraining the defect dynamics and defect renormalization group (rg) flows. here we study surface defects and their anomalies in conformal field theories (cft) of general spacetime dimensions. when t... | surface defect, anomalies and b-extremization |
we study correlation functions of local operator insertions on the 1/2-bps wilson line in n = 4 super yang-mills theory. these correlation functions are constrained by the 1d superconformal symmetry preserved by the 1/2-bps wilson line and define a defect cft1 living on the line. at strong coupling, a set of elementary... | half-bps wilson loop and ads2/cft1 |
we study cluster and hypernuclei production in heavy-ion collisions at relativistic energies employing the parton-hadron-quantum-molecular-dynamics (phqmd) approach, a microscopic n -body transport model based on the qmd propagation of the baryonic degrees of freedom with density dependent two-body potential interactio... | cluster and hypercluster production in relativistic heavy-ion collisions within the parton-hadron-quantum-molecular-dynamics approach |
we consider the world-sheet s matrix of superstrings on an ads3×s3×t4 ns-ns background in uniform light-cone gauge. we argue that scattering is given by a cdd factor that is nontrivial only between opposite-chirality particles, yielding a spin-chain-like bethe ansatz. our proposal reproduces the spectrum of nonprotecte... | strings on ns-ns backgrounds as integrable deformations |
we conjecture that in a consistent supergravity theory with non-vanishing gravitino mass, the limit m3/2 → 0 is at infinite distance. in particular one can write mtower ~ m3/2 δ so that as the gravitino mass goes to zero, a tower of kk states as well as emergent strings becomes tensionless. this conjecture may be motiv... | a gravitino distance conjecture |
this review provides an introduction to non-geometric backgrounds in string theory. starting from a discussion of t-duality, geometric and non-geometric torus-fibrations are reviewed, generalised geometry and its relation to non-geometric backgrounds are explained and compactifications of string theory with geometric a... | non-geometric backgrounds in string theory |
based on quantum gravity arguments, it has been suggested that all kinetic terms of light particles below the uv cut-off could arise in the ir via quantum (loop) corrections. these loop corrections involve infinite towers of states becoming light (e.g. kaluza-klein or string towers). we study implications of this emerg... | towers and hierarchies in the standard model from emergence in quantum gravity |
a holographic perspective to study and characterize field spaces that arise in string compactifications is suggested. a concrete correspondence is developed by studying two-dimensional moduli spaces in supersymmetric string compactifications. it is proposed that there exist theories on the boundaries of each moduli spa... | moduli space holography and the finiteness of flux vacua |
we show that the graph isomorphism (gi) problem and the related problems of string isomorphism (under group action) (si) and coset intersection (ci) can be solved in quasipolynomial ($\exp((\log n)^{o(1)})$) time. the best previous bound for gi was $\exp(o(\sqrt{n\log n}))$, where $n$ is the number of vertices (luks, 1... | graph isomorphism in quasipolynomial time |
recent progress in studies of holographic dualities, originally motivated by insights from string theory, has led to a confluence with concepts and techniques from quantum information theory. a particularly successful approach has involved capturing holographic properties by means of tensor networks which not only give... | holographic tensor network models and quantum error correction: a topical review |
thermal states of quantum systems with many degrees of freedom are subject to a bound on the rate of onset of chaos, including a bound on the lyapunov exponent, λ l≤ 2π/ β. we harness this bound to constrain the space of putative holographic cfts and their would-be dual theories of ads gravity. first, by studying out-o... | bounding the space of holographic cfts with chaos |
we classify the allowed structures of the discrete 1-form gauge sector in six-dimensional supergravity theories realized as f-theory compactifications. this provides upper bounds on the 1-form gauge factors zm and in particular demands each cyclic factor obey m ≤6 . our bounds correspond to the universal geometric cons... | geometric bounds on the 1-form gauge sector |
we initiate the systematic investigation of non-flat resolutions of non-minimal singularities in elliptically fibered calabi-yau threefolds. compactification of m-theory on these geometries provides an alternative approach to studying phases of five-dimensional superconformal field theories (5d scfts). we argue that su... | phases of 5d scfts from m-/f-theory on non-flat fibrations |
we propose a type of hopf semimetal indexed by a pair of numbers (p ,q ) , where the hopf number is given by p q . the fermi surface is given by a preimage of the hopf map, which consists of loops nontrivially linked for a nonzero hopf number. the fermi surface forms a torus link, whose examples are a hopf link indexed... | topological semimetals carrying arbitrary hopf numbers: fermi surface topologies of a hopf link, solomon's knot, trefoil knot, and other linked nodal varieties |
this book deals with the statistical theory of sound and vibration. the foundation of statistical energy analysis is presented in detail. in the modal approach, an introduction to random vibration with application to complex systems having a large number of modes is provided. for the wave approach, the phenomena of pro... | foundation of statistical energy analysis in vibroacoustics |
we study solutions for the klein-gordon equation with vector and scalar potentials of the coulomb types under the influence of noninertial effects in the cosmic string spacetime. we also investigate a quantum particle described by the klein-gordon oscillator in the background spacetime generated by a cosmic string. an ... | relativistic quantum motion of spin-0 particles under the influence of noninertial effects in the cosmic string spacetime |
we construct families of supersymmetric ads3 × y7 and ads3 × y8 solutions to type iib string theory and m-theory, respectively. here y7 is an s5 fibration over σ, while y8 is an s4 fibration over σg × σ, where σg is a riemann surface of genus g > 1 and σ is a two-dimensional orbifold known as a spindle. we interpret... | twisted d3-brane and m5-brane compactifications from multi-charge spindles |
string theory offers an elegant and concrete realization of how to consistently couple states of arbitrarily high spin. but how unique is this construction? in this paper we derive a novel, multi-parameter family of four-point scattering amplitudes exhibiting i) polynomially bounded high-energy behavior and ii) exchang... | veneziano variations: how unique are string amplitudes? |
we analyze so-called generalized veneziano and generalized virasoro amplitudes. under some physical assumptions, we find that their spectra must satisfy an over-determined set of non-linear recursion relations. the recursion relation for the generalized veneziano amplitudes can be solved analytically and yields a two-p... | generalized veneziano and virasoro amplitudes |
symmetries and anomalies of a d-dimensional quantum field theory are often encoded in a (d + 1)-dimensional topological action, called symmetry topological field theory (tft). we derive the symmetry tft for the 2-form and 1-form symmetries of 6d (1, 0) field theories, focusing on theories with a single tensor multiplet... | higher form symmetries tft in 6d |
with the aim of studying nonperturbative out-of-equilibrium dynamics of high-energy particle collisions on quantum simulators, we investigate the scattering dynamics of lattice quantum electrodynamics in 1+1 dimensions. working in the bosonized formulation of the model, we propose an analog circuit-qed implementation t... | high-energy collision of quarks and hadrons in the schwinger model: from tensor networks to circuit qed |
preface; 1. introduction; 2. guide to reading this textbook; 3. processes as diagrams; 4. string diagrams; 5. hilbert space from diagrams; 6. quantum processes; 7. quantum measurement; 8. picturing classical-quantum processes; 9. picturing phases and complementarity; 10. quantum theory: the full picture; 11. quantum fo... | picturing quantum processes |
topological quantum field theories (tqfts) pertinent to some emergent low energy phenomena of condensed matter lattice models in 2+1 and 3+1 dimensions are explored. many of our tqfts are highly-interacting without free quadratic analogs. some of our bosonic tqfts can be regarded as the continuum field theory formulati... | braiding statistics and link invariants of bosonic/fermionic topological quantum matter in 2+1 and 3+1 dimensions |
we consider the dynamics of 2+1 dimensional su( n) gauge theory with chern-simons level k and nffundamental fermions. by requiring consistency with previously suggested dualities for nf≤ 2 k as well as the dynamics at k = 0 we propose that the theory with nf> 2 k breaks the u( nf ) global symmetry spontaneously to u... | a symmetry breaking scenario for qcd3 |
we study various non-perturbative approaches to the quantization of the seiberg-witten curve of n = 2, su(2) super yang-mills theory, which is closely related to the modified mathieu operator. the first approach is based on the quantum wkb periods and their resurgent properties. we show that these properties are encode... | non-perturbative approaches to the quantum seiberg-witten curve |
we discuss the renormalisation of mixed 3-point functions involving tensorial and scalar operators in conformal field theories of general dimension. in previous work we analysed correlators of either purely scalar or purely tensorial operators, in each case finding new features and new complications: for scalar correla... | renormalised cft 3-point functions of scalars, currents and stress tensors |
we construct ads4 flux vacua of type iia string theory in the supergravity (large volume, small ) regime, including the backreaction of o6‑planes. our solutions are the localized versions of the smeared solutions on calabi‑yau orientifolds studied by dewolfe, giryavets, kachru and taylor and in other works. we find tha... | o‑plane backreaction and scale separation in type iia flux vacua |
we develop the notion of double holography in type iib string theory realizations of braneworld models. the type iib setups are based on the holographic duals of 4d bcfts comprising 4d n = 4 sym on a half space coupled to 3d n = 4 scfts on the boundary. based on the concrete bcfts and their brane construction, we provi... | double holography in string theory |
in this review, we discuss recent developments in both the theory and the experimental searches of magnetic monopoles in past, current and future colliders and in the cosmos. the theoretical models include, apart from the standard grand unified theories, extensions of the standard model that admit magnetic monopole sol... | magnetic monopoles revisited: models and searches at colliders and in the cosmos |
we present a comprehensive discussion of renormalisation of 3-point functions of scalar operators in conformal field theories in general dimension. we have previously shown that conformal symmetry uniquely determines the momentum-space 3-point functions in terms of certain integrals involving a product of three bessel ... | scalar 3-point functions in cft: renormalisation, beta functions and anomalies |
the kklt scenario, one of the few ideas to realize ds vacua in string theory, consists of two steps: the first involves the construction of a supersymmetric ads vacuum with a small negative cosmological constant, and the second involves breaking supersymmetry and uplifting the energy to achieve ds. in this paper we use... | holography and the kklt scenario |
we examine a common origin of four-dimensional flavor, cp, and u(1)r symmetries in the context of heterotic string theory with standard embedding. we find that flavor and u(1)r symmetries are unified into the sp(2h + 2, ℂ) modular symmetries of calabi-yau threefolds with h being the number of moduli fields. together wi... | symplectic modular symmetry in heterotic string vacua: flavor, cp, and r-symmetries |
recently, arguments for a refined de sitter conjecture were put forward in arxiv:1810.05506. using the large distance conjecture of arxiv:hep-th/0605264, the authors provide evidence for this ds conjecture in asymptotic regimes of field space, where the parametric control of string theory becomes arbitrarily good. thei... | the asymptotic ds swampland conjecture - a simplified derivation and a potential loophole |
we study the integrable η and λ-deformations of supercoset string sigma models, the basic example being the deformation of the ads 5 × s 5 superstring. we prove that the kappa symmetry variations for these models are of the standard green-schwarz form, and we determine the target space supergeometry by computing the su... | target space supergeometry of η and λ-deformed strings |
we observe a direct relation between the existence of fundamental axionic strings, dubbed eft strings, and infinite distance limits in 4d n = 1 efts coupled to gravity. the backreaction of eft strings can be interpreted as rg flow of their couplings, and allows one to probe different regimes within the field space of t... | the eft stringy viewpoint on large distances |
we revisit the minimal tension ($k=1$) string theory on $\text{ads}_3\times\text{s}^3\times\mathbb{t}^4$. we propose a new free-field description of the worldsheet theory and show how localization of string amplitudes emerges from the path integral. we exemplify our proposal by reproducing the worldsheet partition func... | solving ads$_3$ string theory at minimal tension: tree-level correlators |
we study charm production in pb +pb collisions at √{sn n}=2.76 tev in the parton-hadron-string-dynamics (phsd) transport approach and the charm dynamics in the partonic and hadronic medium. the charm quarks are produced through initial binary nucleon-nucleon collisions by using the pythia event generator, taking into a... | charm production in pb + pb collisions at energies available at the cern large hadron collider |
it is well known that one can take an infinite speed of light limit that gives rise to non-relativistic strings with a relativistic worldsheet sigma model but with a non-relativistic target space geometry. in this work we systematically explore two further limits in which the worldsheet becomes non-lorentzian. the firs... | longitudinal galilean and carrollian limits of non-relativistic strings |
we use the intrinsic one-form and two-form global symmetries of (3+1)d bosonic field theories to classify quantum phases enriched by ordinary (0-form) global symmetry. different symmetry-enriched phases correspond to different ways of coupling the theory to the background gauge field of the ordinary symmetry. the input... | symmetry-enriched quantum spin liquids in (3 + 1)d |
completeness of the spectrum of charged branes in a quantum theory of gravity naturally motivates the question of whether the consistency of what lives on the branes can be used to explain some of the swampland conditions. in this paper, we focus on consistency of what lives on string probes to show that some of the th... | branes and the swampland |
it has been proposed that flux compactifications of supercritical string theories (i.e., with spacetime dimension d > 10) have ds vacua, with large d acting as a control parameter for corrections to the classical spacetime effective action. in this paper, we provide a detailed analysis of the self-consistency of suc... | de sitter-eating o-planes in supercritical string theory |
we revisit the emergence proposal in the vector multiplet moduli space of type iia n=2 supersymmetric string vacua in four dimensions, for which the string tree-level prepotential and the string one-loop correction are exactly known via mirror symmetry. we argue that there exists an exact version of the proposal, accor... | demystifying the emergence proposal |
we study the higgs branches of the 6d $(1,0)$ little string theories that live on the worldvolume of ns5-branes probing an ade-singularity in the heterotic $e_8 \times e_8$ and $\mathrm{spin}(32)/\mathbb{z}_2$ string theories. on the $e_8 \times e_8$ side, such lsts are obtained via fusion of orbi-instanton scfts. for ... | the higgs branch of heterotic lsts: hasse diagrams and generalized symmetries |
we introduce a method for finding flux vacua of type iib string theory in which the flux superpotential is exponentially small and at the same time one or more complex structure moduli are stabilized exponentially near to conifold points.the authors introduce a method for finding flux vacua of type iib string theory in... | conifold vacua with small flux superpotential |
we revisit the relations between open and closed string scattering amplitudes discovered by kawai, lewellen, and tye (klt). we show that they emerge from the un-derlying algebro-topological identities known as the twisted period relations. in order to do so, we formulate tree-level string theory amplitudes in the langu... | combinatorics and topology of kawai-lewellen-tye relations |
in this review we address the dynamics of relativistic heavy-ion reactions and in particular the information obtained from electromagnetic probes that stem from the partonic and hadronic phases. the out-of-equilibrium description of strongly interacting relativistic fields is based on the theory of kadanoff and baym. f... | effective qcd and transport description of dilepton and photon production in heavy-ion collisions and elementary processes |
we establish a linear relation between the a-type weyl anomaly and the 't hooft anomaly coefficients for the r-symmetry and gravitational anomalies in six-dimensional (1, 0) superconformal field theories. for rg flows onto the tensor branch, where conformal symmetry is spontaneously broken, supersymmetry relates the an... | anomalies, renormalization group flows, and the a-theorem in six-dimensional (1, 0) theories |
tensor network algorithms provide a suitable route for tackling real-time-dependent problems in lattice gauge theories, enabling the investigation of out-of-equilibrium dynamics. we analyze a u(1) lattice gauge theory in (1 +1 ) dimensions in the presence of dynamical matter for different mass and electric-field coupli... | real-time dynamics in u(1) lattice gauge theories with tensor networks |
we use the s-matrix bootstrap to carve out the space of unitary, crossing symmetric and supersymmetric graviton scattering amplitudes in ten dimensions. we focus on the leading wilson coefficient $\alpha$ controlling the leading correction to maximal supergravity. the negative region $\alpha<0$ is excluded by a simp... | where is string theory? |
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