Latest in hep-th

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Gauged And Ungauged: A Nonperturbative TestFeb 08 2018We study the thermodynamics of the `ungauged' D0-brane matrix model by Monte Carlo simulation. Our results appear to be consistent with the conjecture by Maldacena and Milekhin.
Worldline quantization of field theory, effective actions and $L_\infty$ structureFeb 08 2018We formulate the worldline quantization of a massive fermion model coupled to external higher spin sources. We use the relations obtained in this way to show that its regularized effective action is endowed with an $L_\infty$ symmetry. The same result ... More
Uniqueness of $\mathcal{N}=2$ and $3$ pure supergravities in 4DFeb 08 2018After proving the impossibility of consistent non-minimal coupling of a real Rarita-Schwinger gauge field to electromagnetism, we re-derive the necessity of introducing the graviton in order to couple a complex Rarita-Schwinger gauge field to electromagnetism, ... More
Ultraviolet phenomena in AdS self-interacting quantum field theoryFeb 08 2018We study the one-loop corrections to the four-point function in the Anti de Sitter space-time for a $\phi^4$ field theory. Our calculation shows the existence of non-local counterterms which however respect the AdS isometry. Our arguments are quite general ... More
Event-by-Event Efficiency Fluctuations and Efficiency Correction for Cumulants of Superposed Multiplicity Distributions in Relativistic Heavy-ion Collision ExperimentsFeb 08 2018We performed systematic studies for the effects of event-by-event efficiency fluctuations on efficiency correction for cumulant analysis in relativistic heavy-ion collision experiments. Experimentally, particle efficiencies of events measured with different ... More
New Physics Phenomena and F-theory GUTsFeb 08 2018In this presentation the new physics implications of the $B$-meson decay anomalies, observed at LHCb, are discussed. In the first part of the talk a brief overview of the experimental status is presented. In the second part, a class of semi-local F-theory ... More
A curvature bound from gravitational catalysisFeb 08 2018We determine bounds on the curvature of local patches of spacetime from the requirement of intact long-range chiral symmetry. The bounds arise from a scale-dependent analysis of gravitational catalysis and its influence on the effective potential for ... More
Noncommutative Heisenberg algebra in the neighbourhood of a generic null surfaceFeb 08 2018We show that the diffeomorphisms, which preserve the null nature for a generic null metric very near to the null surface, incorporate {\it noncommutative} Heisenberg algebra. This is the generalization of the earlier work (Phys. Rev. D95, 044020 (2017)) ... More
A holographic estimate of heavy quark diffusion in a magnetic fieldFeb 08 2018We study the influence of a background magnetic field on the $J/\psi$ vector meson in a DBI-extension of the soft wall model, building upon our earlier work Phys. Rev. D91, 086002 (2015). In this specific holographic QCD model, we discuss the heavy quark ... More
Aspects of braneworld cosmology and holographyFeb 08 2018In a holographic braneworld universe a cosmological fluid occupies a 3+1 dimensional brane located at the boundary of the asymptotic AdS$_5$ bulk. The AdS/CFT correspondence and the second Randall-Sundrum model are combined to establish a relationship ... More
A dark energy scenario consistent with GW170817 in theories beyond HorndeskiFeb 08 2018The Gleyzes-Langlois-Piazza-Vernizzi (GLPV) theories up to quartic order are the general scheme of scalar-tensor theories allowing the possibility for realizing the tensor propagation speed $c_t$ equivalent to 1 on the isotropic cosmological background. ... More
Does the black hole shadow probe the event horizon geometry?Feb 07 2018There is an exciting prospect of obtaining the shadow of astrophysical black holes (BHs) in the near future with the Event Horizon Telescope. As a matter of principle, this justifies asking how much one can learn about the BH horizon itself from such ... More
Gravitation in terms of observablesFeb 07 2018In the 1960's, Mandelstam proposed a new approach to gauge theories and gravity based on loops. The program for gauge theories was completed for Yang--Mills theories by Gambini and Trias in the 1980's. Gauge theories could be understood as representations ... More
Dirac and Majorana Feynman Rules with four-fermionsFeb 07 2018A compact method for amplitude calculations in theories with Dirac and Majorana effective operators is discussed. Using the renormalizable formalism of Denner et al., [1,2] for propagators, vertices and fermion (number) flow and introducing new "reading-rules", ... More
Operator growth in the SYK modelFeb 07 2018We discuss the probability distribution for the "size" of a time-evolving operator in the SYK model. Scrambling is related to the fact that as time passes, the distribution shifts towards larger operators. Initially, the rate is exponential and determined ... More
On Non-slow Roll Inflationary RegimesFeb 07 2018We summarize our work on constant roll inflationary models. It was understood recently that constant roll inflation, in a regime beyond the slow roll approximation, can give models that are in agreement with the observational constraints. We describe ... More
Multipartite entanglement in spin chains and the HyperdeterminantFeb 07 2018A way to characterize multipartite entanglement in pure states of a spin chain with $n$ sites and local dimension $d$ is by means of the Cayley hyperdeterminant. The latter quantity is a polynomial constructed with the components of the wave function ... More
Quantum edge modes in 3d gravity and 2+1d topological phases of matterFeb 07 2018We analyze the edge mode structure of Euclidean three dimensional gravity from within the quantum theory as embodied by a Ponzano-Regge-Turaev-Viro discrete state sum with Gibbons-=-Hawking-York boundary conditions. This structure is encoded in a pair ... More
Energy is EntanglementFeb 07 2018We compute the local second variation of the von Neumann entropy of a region in theories with a gravity dual. For null variations our formula says that the diagonal part of the Quantum Null Energy Condition is saturated in every state, thus providing ... More
Interactions resolve state-dependence in a toy-model of AdS black holesFeb 07 2018We show that the holographic description of a class of AdS black holes with scalar hair involves dual field theories with a double well effective potential. Black hole microstates have significant support around both vacua in the dual, which correspond ... More
Disordered fermions, extra dimensions and a solvable Yang-Mills theoryFeb 07 2018Generalizing disorder couplings of the SYK model by means of SU(N) matrices we formulate a lattice model of fermions in d+1 dimensions. Integration of fermions yields an effective theory of Yang-Mills fields in d dimensions, the latter approaching the ... More
Minimally modified theories of gravity: a playground for testing the uniqueness of general relativityFeb 07 2018In a recent paper [1], it was introduced a new class of gravitational theories with two local degrees of freedom. The existence of these theories apparently challenges the unique role of general relativity as the unique non-linear theory of massless spin-2 ... More
Subleading Regge limit from a soft anomalous dimensionFeb 07 2018Wilson lines capture important features of scattering amplitudes, for example soft effects relevant for infrared divergences, and the Regge limit. Beyond the leading power approximation, corrections to the eikonal picture have to be taken into account. ... More
$ F_4$ , $E_6$ and $G_2$ Exceptional Gauge Groups in Vacuum Domain Structure ModelFeb 07 2018Using vacuum domain structure model, trivial static potentials in various representations of $F_4$, $E_6$ and $G_2$ exceptional groups are calculated by means of the unit center element. Due to the absence of the non-trivial center elements, the potential ... More
Exact Solution of a Strongly Coupled Gauge Theory in 0+1 DimensionsFeb 07 2018Gauged tensor models are a class of strongly coupled quantum mechanical theories. We present the exact analytic solution of a specific example of such a theory: namely the smallest colored tensor model due to Gurau and Witten that exhibits non-linearities. ... More
Asymptotically Locally Euclidean/Kaluza-Klein Stationary Vacuum Black Holes in 5 DimensionsFeb 07 2018We produce new examples, both explicit and analytical, of bi-axisymmetric stationary vacuum black holes in 5 dimensions. A novel feature of these solutions is that they are asymptotically locally Euclidean in which spatial cross-sections at infinity have ... More
Nonrelativistic Limit of Dirac Theory From Effective Field TheoryFeb 07 2018In this work we analyze the low energy nonrelativistic limit of Dirac theory in the framework of effective field theory. By integrating out the high energy modes of Dirac field, given in terms of a combination of the two-components Weyl spinors, we obtain ... More
Dynamical analysis on $f(R,\mathcal{G})$ cosmologyFeb 07 2018We use a dynamical system approach to study the cosmological viability of $f(R,\mathcal{G})$ gravity theories. The method consists of formulating the evolution equations as an autonomous system of ODEs, using suitable variables. The formalism is applied ... More
The First Physics Picture of Contractions from a Fundamental Quantum Relativity Symmetry Including all Known Relativity Symmetries, Classical and QuantumFeb 07 2018In this article, we utilize the insights gleaned from our recent formulation of space(-time), as well as dynamical picture of quantum mechanics and its classical approximation, from the relativity symmetry perspective in order to push further into the ... More
Perturbative matching of continuum and lattice quasi-distributionsFeb 07 2018Matching of the quasi parton distribution functions between continuum and lattice is addressed using lattice perturbation theory specifically with Wilson-type fermions. The matching is done for nonlocal quark bilinear operators with a straight Wilson ... More
A structural test for the conformal invariance of the critical 3d Ising modelFeb 07 2018How can a renormalization group fixed point be scale invariant without being conformal? Polchinski (1988) showed that this may happen if the theory contains a virial current -- a non-conserved vector operator of dimension exactly $(d-1)$, whose divergence ... More
Scalar products of the elliptic Felderhof model and elliptic Cauchy formulaFeb 07 2018We analyze the scalar products of the elliptic Felderhof model introduced by Foda-Wheeler-Zuparic as an elliptic extension of the trigonometric face-type Felderhof model by Deguchi-Akutsu. We derive the determinant formula for the scalar products by applying ... More
Predictions for isobaric collisions at $\sqrt{s_{_{\rm NN}}}$ = 200 GeV from a multiphase transport modelFeb 07 2018The isobaric collisions of $^{96}_{44}$Ru + $^{96}_{44}$Ru and $^{96}_{40}$Zr + $^{96}_{40}$Zr have recently been proposed to discern the charge separation signal of the chiral magnetic effect (CME). In this article, we employ the string melting version ... More
Unitarity and Universality in non relativistic Conformal Field theoryFeb 06 2018We relate the notion of unitarity of a $SL(2,\mathbf{R})$ invariant field theory with that of a Schr\"odinger field theory using the fact that $SL(2,\mathbf{R})$ is a subgroup of Schr\"odinger group. Exploiting $SL(2,\mathbf{R})$ unitarity, we derive ... More
Building a linear equation of state for trapped gravitons from finite size effects and the Schwarzschild black hole caseFeb 06 2018In this paper we continue the investigations present in \cite{1} and \cite{2} concerning the spectrum of trapped gravitons in a spherical box, and in particular inside a Schwarzschild black hole (BH). We explore the possibility that, due to finite size ... More
Wormholes in conformal gravityFeb 06 2018We present a new class of solutions for static spherically symmetric wormhole spacetimes in conformal gravity and outline a detailed method for their construction. As an explicit example, we construct a class of traversable and non-traversable wormholes ... More
Black Holes and Complexity ClassesFeb 06 2018It is not known what the limitations are on using quantum computation to speed up classical computation. An example would be the power to speed up PSPACE-complete computations. It is also not known what the limitations are on the duration of time over ... More
Deformation of extremal black holes from stringy interactionsFeb 06 2018Black holes are a powerful setting for studying general relativity and theories beyond GR. However, analytical solutions for rotating black holes in beyond-GR theories are difficult to find because of the complexity of such theories. In this paper, we ... More
Quantum Spectral Curve of $γ$-twisted ${\cal N}=4$ SYM theory and fishnet CFTFeb 06 2018We review the quantum spectral curve (QSC) formalism for anomalous dimensions of planar ${\cal\ N}=4$ SYM, including its $\gamma$-deformation. Leaving aside its derivation, we concentrate on formulation of the "final product" in its most general form: ... More
$C$-$P$-$T$ anomaly in bosonic systemsFeb 06 2018We consider the $O(3)$ nonlinear sigma model with the $\theta$-term and its linear counterpart in 1+1D. The model has discrete time-reflection and space-reflection symmetries at any $\theta$, and enjoys the periodicity in $\theta\rightarrow \theta+2\pi$. ... More
Interacting birefringent electrons: Marginal- or non-Fermi liquid of spin-1/2 fermionsFeb 06 2018We present the quantum critical theory of an interacting nodal Fermi-liquid of quasi-relativisitc (pseudo)-spin-3/2 fermions that have a non-interacting \emph{birefringent} spectrum with \emph{two} distinct Fermi velocities. When such quasiparticles interact ... More
Hamiltonian formalism for f(T) gravityFeb 06 2018We present the Hamiltonian formalism for $f(T)$ gravity, and prove that the theory has $\frac{n(n-3)}{2}+1$ degrees of freedom in $n$ dimensions. We start from a scalar-tensor action for the theory, that represents a scalar field minimally coupled with ... More
Fifty years of the finite nonperiodic Toda lattice: A geometric and topological viewpointFeb 06 2018In 1967, Japanese physicist Morikazu Toda published a pair of seminal papers in the Journal of the Physical Society of Japan that exhibited soliton solutions to a chain of particles with nonlinear interactions between nearest neighbors. In the fifty years ... More
On Some Universal Features of the Holographic Quantum Complexity of Bulk SingularitiesFeb 06 2018We perform a comparative study of the time dependence of the holographic quantum complexity of some space like singular bulk gravitational backgrounds. This is done by considering the two available notions of complexity, one that relates it to the maximal ... More
Are gravitational wave ringdown echoes always equal-interval ?Feb 06 2018Feb 07 2018Gravitational wave (GW) ringdown waveforms may contain "echoes" that encode new physics in the strong gravity regime. It is commonly assumed that the new physics gives rise to the GW echoes whose intervals are constant. We point out that this assumption ... More
Imaginary potential in strongly coupled $\mathcal{N}=4$ SYM plasma in a magnetic fieldFeb 06 2018We study the effect of a constant magnetic field on the imaginary part of a quarkonia potential in a strongly-coupled $\mathcal{N}=4$ SYM plasma. We consider the pair axis to be aligned perpendicularly and parallel to the magnetic field, respectively. ... More
Drag force in strongly coupled $\mathcal{N}=4$ SYM plasma in a magnetic fieldFeb 06 2018Applying AdS/CFT correspondence, we study the effect of a constant magnetic field $\mathcal{B}$ on the drag force associated with a heavy quark moving through a strongly-coupled $\mathcal{N}=4$ supersymmetric Yang-Mills (SYM) plasma. The quark is considered ... More
Asymptotic behavior and critical coupling in scalar Yukawa modelFeb 06 2018The solution of the equation for the phion propagator in the leading order of the $1/N$ -- expansion for a vector-matrix model with interaction $g(\phi_a)^*\phi_b\chi_{ab}$ in four dimensions shows a change of the asymptotic behavior in the deep Euclidean ... More
Motion and collision of particles in rotating linear dilaton black holeFeb 06 2018We study the motion of particles in the background of a four-dimensional linear dilaton black hole. We solve analytically the equations of motion of the test particles and we describe their motion. We show that the dilaton black hole acts as a particle ... More
Impact of medium modification of the nucleon weak and electromagnetic form factors on the neutrino mean free path in dense matterFeb 06 2018Impact of the in-medium modified nucleon weak and electromagnetic form factors on the neutrino mean free path in dense matter is studied by considering both the weak and electromagnetic interactions of neutrinos with the constituents of the matter. A ... More
Renormalization for a Scalar Field in an External Scalar PotentialFeb 05 2018The Pauli--Villars regularization procedure confirms and sharpens the conclusions reached previously by covariant point splitting. The divergences in the stress tensor of a quantized scalar field interacting with a static scalar potential are isolated ... More
Positive gravitational subsystem energies from CFT cone relative entropiesFeb 05 2018The positivity of relative entropy for spatial subsystems in a holographic CFT implies the positivity of certain quantities in the dual gravitational theory. In this note, we consider CFT subsystems whose boundaries lie on the lightcone of a point $p$. ... More
Towards a bulk description of higher spin SYKFeb 05 2018We consider on the bulk side extensions of the Sachdev--Ye--Kitaev (SYK) model to Yang--Mills and higher spins. To this end we study generalizations of the Jackiw--Teitelboim (JT) model in the BF formulation. Our main goal is to obtain generalizations ... More
The Size Seems to Matter or Where Lies the "Asymptopia"?Feb 05 2018We discuss an apparent correlation between the onset of the rising regime for the total cross-sections and the slowdown of the rise of the forward slopes with energy. It is shown that even at highest energies achieved with the LHC the proper sizes of ... More
Non-conservative unimodular type gravityFeb 05 2018In unimodular gravity the cosmological constant $\Lambda$ appears naturally as an integration constant when deriving the field equations of the theory and using the conservation of the matter components. Therefore, the unimodular approach seems to naturally ... More
Low Dimensional Super-Yang-Mills theory in Aether-SuperspaceFeb 05 2018In this work we study the dynamical generation of mass in the Lorentz-violating two and three-dimensional Super-Yang-Mills theory coupled to a scalar matter in the aether-superspace.
Analytic Study of Cosmological Perturbations in a Unified Model of Dark Matter and Dark Energy with a Sharp TransitionFeb 05 2018We study cosmological perturbations in a model of unified dark matter and dark energy with a sharp transition in the late-time universe. The dark sector is described by a dark fluid which evolves from an early stage at redshifts $z > z_C$ when it behaves ... More
Nonlinear waves in magnetized quark matter and the reduced Ostrovsky equationFeb 04 2018We study nonlinear waves in a nonrelativistic ideal and cold quark gluon plasma immersed in a strong uniform magnetic field. In the context of nonrelativistic hydrodynamics with an external magnetic field we derive a nonlinear wave equation for baryon ... More
Chiral fluids: a few theoretical issuesFeb 04 2018We review briefly a few topics concerning physics of fluids whose constituents are massless fermions interacting in chiral invariant way. Macroscopic manifestations of the chral anomaly is one of central issues. Another topic is ultraviolet vs infrared ... More
Integrable time-dependent Hamiltonians, solvable Landau-Zener models and Gaudin magnetsFeb 03 2018We solve the non-stationary Schrodinger equation for several time-dependent Hamiltonians, such as the BCS Hamiltonian with an interaction strength inversely proportional to time, periodically driven BCS and linearly driven inhomogeneous Dicke models as ... More
Unitarity issues in higher derivative field theoriesFeb 03 2018We analyze the unitarity properties of higher derivative quantum field theories which are free of ghosts and ultraviolet singularities. We point out that in spite of the absence of ghosts most of these theories are not unitary. This result confirms the ... More
Asymptotic single-particle states and exact Lorentz-violating all-loop quantum corrections for scalar field theoryFeb 02 2018We perform the all-loop renormalization of the O($N$) $\lambda\phi^{4}$ scalar field theory with Lorentz violation which is exact in the Lorentz-violating $K_{\mu\nu}$ coefficients. This task is fulfilled analytically firstly explicitly at next-to-leading ... More
Five-loop massless propagator integralsFeb 02 2018We develop a method to obtain $\epsilon$-expansions of massless two-point integrals in position space, based on the constraints implied by symmetries of the asymptotic expansion of conformal four-point integrals. Together with parametric integration, ... More
On the photon or meson formation in $J/ψ$ decays into $p {\overline{p}}$Feb 02 2018The measurements of the $J/\psi \rightarrow \gamma p \overline{p}$ decays by the BES Collaboration indicate an enhancement at the $p \overline{p}$ threshold which, however, is present neither in the J/$\psi$ decays into $\omega p \overline{p}$ nor into ... More
Hopf solitons on compact manifoldsFeb 02 2018Hopf solitons in the Skyrme-Faddeev system on $R^3$ typically have a complicated structure, in particular when the Hopf number Q is large. By contrast, if we work on a compact 3-manifold M, and the energy functional consists only of the Skyrme term (the ... More
Application of Nilsson model for deformed nucleus in relativistic heavy ion collisionsFeb 02 2018For spherically symmetric nucleus (Au or Pb), Wood-Saxon (WS) distribution proves to be highly manoeuvrable and aptly suitable in giving nucleon distribution within a nucleus. Incorporating shape modification in WS, earlier attempts were made to explain ... More
Exploring hyperon structure with electromagnetic transverse densitiesFeb 01 2018We explore the structure of the spin-1/2 flavor-octet baryons (hyperons) through their electromagnetic transverse densities. The transverse densities describe the distribution of charge and magnetization at fixed light-front time and enable a spatial ... More
The Exceptional Sigma ModelFeb 01 2018We detail the construction of the exceptional sigma model, which describes a string propagating in the "extended spacetime" of exceptional field theory. This is to U-duality as the doubled sigma model is to T-duality. Symmetry specifies the Weyl-invariant ... More
Multi-particle azimuthal cumulants in p+Pb collisions from a multiphase transport modelFeb 01 2018A new subevent cumulant method was recently developed, which can significantly reduce the non-flow contributions in long-range correlations for small systems. In this work, we use both standard and subevent cumulant methods to study multi-particle correlations ... More
Fermion-induced quantum criticality with two length scales in Dirac systemsFeb 01 2018The quantum phase transition to a $\mathbb{Z}_3$-ordered Kekul\'e valence bond solid in two-dimensional Dirac semimetals is governed by a fermion-induced quantum critical point, which renders the putatively discontinuous transition continuous. We study ... More
Mode solutions for a Klein-Gordon field in anti-de Sitter with dynamical boundary conditions of Wentzell typeFeb 01 2018We study a real, massive Klein-Gordon field in the Poincar\'e fundamental domain of the $(d+1)$-dimensional anti-de Sitter (AdS) spacetime, subject to a particular choice of dynamical boundary conditions of generalized Wentzell type, whereby the boundary ... More
Quark mass functions and pion structure in the Covariant Spectator TheoryFeb 01 2018The Covariant Spectator Theory is applied to the description of quarks and the pion. The dressed quark mass function is calculated dynamically in Minkowski space and used in the calculation of the pion electromagnetic form factor. The effects of the mass ... More
Entanglement Entropy for Open Bosonic Strings on $Dp$-branesFeb 01 2018We study the entanglement entropy for open bosonic strings on multiple $Dp$-branes by using the covariant open string field theory. Choosing one of the spatial coordinates which are tangential to the hyperplane on which $Dp$-branes are located, we divide ... More
Scalar fields as sources for wormholes and regular black holesJan 31 2018We review nonsingular static, spherically solutions of general relativity with a minimally coupled scalar field $\phi$ as a source. Considered are wormholes and regular black holes without a center, including black universes (black holes with an expanding ... More
Structure of the orbital excited $N^*$ from the Schwinger-Dyson equationsJan 31 2018We present progress in the evaluation of $\gamma^* N \rightarrow N^*(1535)$ transition form factors in a quark-diquark picture of these baryons. Our analysis is based upon the fully-consistent treatment of a vector $\times$ vector contact interaction, ... More
SO(3) "Nuclear Physics" with ultracold GasesJan 31 2018An ab initio calculation of nuclear physics from Quantum Chromodynamics (QCD), the fundamental SU(3) gauge theory of the strong interaction, remains an outstanding challenge. Here, we discuss the emergence of key elements of nuclear physics using an SO(3) ... More
Holographic studies of Einsteinian cubic gravityJan 31 2018Einsteinian cubic gravity provides an 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 AdS$_4$ black holes and allows for numerous ... More
Can the cosmological dark sector be modeled by a single scalar field?Jan 31 2018In a previous paper it was shown that a minimally coupled scalar field of mass $M \sim H_0$ can describe both components of the dark sector in a unified way. In the solution found, the dark energy component decays linearly with the Hubble parameter, with ... More
The Reconstruction of $f(φ)R$ and Mimetic Gravity from Viable Slow-roll InflationJan 31 2018In this work, we extend the bottom-up reconstruction framework of $F(R)$ gravity to other modified gravities, and in particular for $f(\phi)R$ and mimetic $F(R)$ gravities. We investigate which are the important conditions in order for the method to work, ... More
On the chiral expansion of vector meson massesJan 31 2018We study the chiral expansion of meson masses and decay constants using a chiral Lagrangian that was constructed previously based on the hadrogenesis conjecture. The one-loop self energies of the Goldstone bosons and vector mesons are evaluated. It is ... More
The impact of $\mathbf{K^+Λ}$ photoproduction on the resonance spectrumJan 31 2018The J\"ulich-Bonn coupled-channel framework is extended to $K^+\Lambda$ photoproduction. The spectrum of nucleon and $\Delta$ resonances is extracted from simultaneous fits to several pion-induced reactions in addition to pion, eta and $K^+\Lambda$ photoproduction ... More
Renormalization of QCD in the interpolating momentum subtraction scheme at three loopsJan 31 2018We introduce a more general set of kinematic renormalization schemes than the original momentum (MOM) subtraction schemes of Celmaster and Gonsalves. These new schemes will depend on a parameter $\omega$ which tags the external momentum of one of the ... More
Mapping Ricci-based theories of gravity into general relativityJan 31 2018We show that the space of solutions of a wide family of Ricci-based metric-affine theories of gravity can be put into correspondence with the space of solutions of general relativity (GR). This allows us to use well-established methods and results from ... More
Field theoretic renormalization study of reduced quantum electrodynamics and applications to the ultra-relativistic limit of Dirac liquidsJan 31 2018The field theoretic renormalization study of reduced quantum electrodynamics (QED) is performed up to two loops. In the condensed matter context, reduced QED constitutes a very natural effective relativistic field theory describing (planar) Dirac liquids, ... More
Dual Frobenius manifolds of minimal gravity on diskJan 31 2018Liouville field theory approach to 2-dimensional gravity possesses the duality ($b \leftrightarrow b^{-1}$). The matrix counterpart of minimal gravity $\mathcal{M}(q,p)$ ($q<p$ co-prime) is effectively described on $A_{q-1}$ Frobenius manifold, which ... More
Harmonic oscillators from displacement operators and thermodynamicsJan 30 2018In this investigation, the displacement operator is revisited. We established a connection of the Hermitian version of this operator with the well-known Weyl ordering. Besides, we characterized the quantum properties of a simple displaced harmonic oscillator, ... More
The role of Coulomb branches in 2D gauge theoryJan 30 2018I give a simple construction of certain Coulomb branches $C_{3,4}(G;E)$ of gauge theory in 3 and 4 dimensions defined by Nakajima et al. for a compact Lie group $G$ and a polarisable quaternionic representation $E$. The manifolds $C(G; 0)$ are abelian ... More
On the chiral extrapolation of charmed meson massesJan 30 2018We perform an analysis of QCD lattice data on charmed meson masses. The quark-mass dependence of the data set is used to gain information on the size of counter terms of the chiral Lagrangian formulated with open-charm states with J^P= 0^- and J^P =1^- ... More
Invariant Operators, Orthogonal Bases and Correlators in General Tensor ModelsJan 30 2018We study invariant operators in general tensor models. We show that representation theory provides an efficient framework to count and classify invariants in tensor models. In continuation of our earlier work, we present two natural ways of counting invariants, ... More
Rotating Kinky BraneworldsJan 30 2018Cylindrical braneworlds have been used in the literature as a convenient way to resolve co-dimension-two branes. They are prevented from collapsing by a massless worldvolume field with non-trivial winding, but here we discuss another way of preventing ... More
Volume and Topological Invariants of Quantum Many-body SystemsJan 30 2018A gapped many-body system is described by path integral on a space-time lattice $C^{d+1}$, which gives rise to a partition function $Z(C^{d+1})$ if $\partial C^{d+1} =\emptyset$, and gives rise to a vector $|\Psi\rangle$ on the boundary of space-time ... More
Edge State Quantization: Vector Fields in RindlerJan 30 2018We present a detailed discussion of the entanglement structure of vector fields through canonical quantization. We quantize Maxwell theory in Rindler space in Lorenz gauge, discuss the Hilbert space structure and analyze the Unruh effect. As a warm-up, ... More
Spin portal to dark matterJan 30 2018In this work we study the possibility that dark matter fields transform in the $(1,0)\oplus(0,1)$ representation of the Homogeneous Lorentz Group. In an effective theory approach, we study the lowest dimension interacting terms of dark matter with standard ... More
N* Experiments and their Impact on Strong QCD PhysicsJan 29 2018I give a brief overview of experimental studies of the spectrum and the structure of the excited states of the nucleon and what we learn about their internal structure. The focus is on the effort to obtain a more complete picture of the light-quark baryon ... More
Nonlinear evolution of the AdS$_4$ black hole bombJan 29 2018The superradiant instability of rotating black holes with negative cosmological constant is studied by numerically solving the full 3+1-dimensional Einstein equations. We find evidence for an epoch dominated by a solution with a single helical Killing ... More
What does the matter created in high multiplicity proton-nucleus collisions teach us about the 3-D structure of the proton?Jan 29 2018The study of multiparticle correlations and collectivity in the hot and dense matter created in collisions of heavy-ions as well as those of smaller systems such as proton--heavy-ion collisions has progressed to the point where detailed knowledge of the ... More
Vacuum-like jet fragmentation in a dense QCD mediumJan 29 2018We study the fragmentation of a jet propagating in a dense quark-gluon plasma. Using a leading, double-logarithmic approximation in perturbative QCD, we compute for the first time the effects of the medium on the vacuum-like emissions. We show that, due ... More
Poincaré-covariant analysis of heavy-quark baryonsJan 29 2018We use a symmetry-preserving truncation of meson and baryon bound-state equations in quantum field theory in order to develop a unified description of systems constituted from light- and heavy-quarks. In particular, we compute the spectrum and leptonic ... More
Strong cosmic censorship in de Sitter spaceJan 29 2018Recent work indicates that the strong cosmic censorship hypothesis is violated by nearly extremal Reissner-Nordstrom-de Sitter black holes. It was argued that perturbations of such a black hole decay sufficiently rapidly that the perturbed spacetime can ... More
GUP impact onto black holes information flux and the sparsity of Hawking radiationJan 29 2018We investigate the Generalized Uncertainty Principle (GUP) corrections to the entropy content and the information flux of black holes, as well as the corrections to the sparsity of the Hawking radiation at the late stages of evaporation. We find that ... More