High Energy Physics  Theory
New submissions
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New submissions for Mon, 19 Feb 18
 [1] arXiv:1802.05771 [pdf, other]

Title: The Type IIA Flux Potential, 4forms and FreedWitten anomaliesComments: 75 pages, one figureSubjects: High Energy Physics  Theory (hepth)
We compute the full classical 4d scalar potential of type IIA CalabiYau orientifolds in the presence of fluxes and D6branes. We show that it can be written as a bilinear form $V = Z^{AB} \rho_A\rho_B$, where the $\rho_A$ are in onetoone correspondence with the 4form fluxes of the 4d effective theory. The $\rho_A$ only depend on the internal fluxes, the axions and the topological data of the compactification, and are fully determined by the FreedWitten anomalies of branes that appear as 4d string defects. The quadratic form $Z^{AB}$ only depends on the saxionic partners of these axions. In general, the $\rho_A$ can be seen as the basic invariants under the discrete shift symmetries of the 4d effective theory, and therefore the building blocks of any fluxdependent quantity. All these polynomials may be obtained by derivation from one of them, associated to a universal 4form. The standard N=1 supergravity flux superpotential is uniquely determined from this {\it master polynomial}, and vice versa.
 [2] arXiv:1802.05838 [pdf, ps, other]

Title: Mode Analysis for Energetics of a Moving Charge In Lorentz and CPTViolating ElectrodynamicsComments: 16 pagesSubjects: High Energy Physics  Theory (hepth)
In isotropic but Lorentz and CPTviolating electrodynamics, it is known that a charge in unifom motion does not lose any energy to Cerenkov radiation. This presents a puzzle, since the radiation appears to be kinematically allowed for many modes. Studying the Fourier transforms of the most important terms in the modified magnetic field and Poynting vector, we confirm the vanishing of the the radiation rate. Moreover, we show that the Fourier transform of the field changes sign between small and large wave numbers. This enables modes with very long wavelengths to carry negative energies, which cancel out the positive energies carried away by modes with shorter wavelengths. This cancelation had previously been inferred but never explicitly demonstrated.
 [3] arXiv:1802.05890 [pdf, ps, other]

Title: LeClairMussardo series for twopoint functions in Integrable QFTComments: 27 pagesSubjects: High Energy Physics  Theory (hepth); Statistical Mechanics (condmat.statmech); Exactly Solvable and Integrable Systems (nlin.SI)
We develop a welldefined spectral representation for twopoint functions in relativistic Integrable QFT in finite density situations, valid for spacelike separations. The resulting integral series is based on the infinite volume, zero density form factors of the theory, and certain statistical functions related to the distribution of Bethe roots in the finite density background. Our final formulas are checked by comparing them to previous partial results obtained in a lowtemperature expansion. It is also show that in the limit of large separations the new integral series factorizes into the product of two LeClairMussardo series for onepoint functions, thereby satisfying the clustering requirement for the twopoint function.
 [4] arXiv:1802.05922 [pdf, other]

Title: Physical content of Quadratic GravityComments: 36 pagesSubjects: High Energy Physics  Theory (hepth)
We have recently undergone an analysis of gravitational theories as defined in first order formalism, where the metric and the connection are treated as independent fields. The physical meaning of the connection field has historically been somewhat elusive. In this paper, a complete spin analysis of the torsionless connection field is performed, and its consequences are explored. The main properties of a hypothetical consistent truncation of the theory are discussed as well.
 [5] arXiv:1802.05933 [pdf, other]

Title: Mode truncations and scattering in strong fieldsComments: 38 pages, 1 pdf figureSubjects: High Energy Physics  Theory (hepth); High Energy Physics  Phenomenology (hepph)
Truncating quantum field theories to a dominant mode offers a nonperturbative approach to their solution, in particular when the singlemode theory can be solved exactly. Here we consider the interaction of charged scalar matter with a single mode of the electromagnetic field. The implied breaking of explicit Lorentz invariance prompts us to compare instantform quantisation and frontform, with the latter yielding significant simplifications when lightfront zero modes are included. As an application of our field theory results we assess the validity of existing firstquantised approaches to depletion effects in strong fields, and point out connections to the dressing approach to QED and its infrared structure.
 [6] arXiv:1802.05989 [pdf, other]

Title: Path integral for supersymmetric quantum mechanics and typeA trace anomaliesComments: 1+23 pages, 2 tablesSubjects: High Energy Physics  Theory (hepth); General Relativity and Quantum Cosmology (grqc)
Particles in a curved space are classically described by a nonlinear sigma model action that can be quantized through path integrals. The latter require a precise regularization to deal with the derivative interactions arising from the nonlinear kinetic term. Recently, for maximally symmetric spaces, simplified path integrals have been developed: they allow to trade the nonlinear kinetic term with a purely quadratic kinetic term (linear sigma model). This happens at the expense of introducing a suitable effective scalar potential, which contains the information on the curvature of the space. The simplified path integral provides a sensible gain in the efficiency of perturbative calculations. Here we extend the construction to models with N = 1 supersymmetry on the worldline, which are applicable to the first quantized description of a Dirac fermion. In particular, we use the simplified worldline path integral to compute the typeA trace anomaly of a Dirac fermion in d dimensions up to d = 16.
 [7] arXiv:1802.05999 [pdf, other]

Title: Hidden Conformal Symmetry in TreeLevel Graviton ScatteringComments: 35 pages, 3 figuresSubjects: High Energy Physics  Theory (hepth); General Relativity and Quantum Cosmology (grqc); Mathematical Physics (mathph)
We argue that the scattering of gravitons in ordinary Einstein gravity possesses a hidden conformal symmetry at tree level in any number of dimensions. The presence of this conformal symmetry is indicated by the dilaton soft theorem in string theory, and it is reminiscent of the conformal invariance of gluon treelevel amplitudes in four dimensions. To motivate the underlying prescription, we demonstrate that formulating the conformal symmetry of gluon amplitudes in terms of momenta and polarization vectors requires manifest reversal and cyclic symmetry. Similarly, our formulation of the conformal symmetry of graviton amplitudes relies on a manifestly permutation symmetric form of the amplitude function.
 [8] arXiv:1802.06016 [pdf, other]

Title: Quantum Anisotropic Sigma and Lambda Models as Spin ChainsComments: 60 pagesSubjects: High Energy Physics  Theory (hepth)
We consider lambda and anisotropic deformations of the SU(2) principal chiral model and show how they can be quantized in the Hamiltonian formalism on a lattice as a suitable spin chain. The spin chain is related to the higher spin XXZ Heisenberg chain and can be solved by using the Bethe Ansatz. This yields the spectrum and Smatrix of the excitations. In particular, we find the Smatrix in the gapped antiferromagnetic regime. In this regime, a continuum limit does not exist and this suggests that the field theories in this regime, precisely ones with a cyclic RG like the YangBaxter deformations, may only exist as effective theories. In a certain limit, we show that the XXZ type lambda model gives the symmetric space SU(2)/U(1) lambda model and, hence, we are able to find its spectrum and Smatrix and show that it gives the Smatrix of the O(3) sigma model in the appropriate limit. Finally, we show the full consistency of the Smatrix and the Lagrangian formulations of the lambda model, by coupling to a conserved charge and computing the way the ground state energy changes in both pictures.
 [9] arXiv:1802.06022 [pdf, other]

Title: Resummation and renormalons in a general Quantum Field TheoryComments: 19 pages, 5 figuresSubjects: High Energy Physics  Theory (hepth); High Energy Physics  Phenomenology (hepph)
We generalize the concept of Borel resummability and renormalons to a quantum field theory with an arbitrary number of fields and couplings, starting from the known notion based on the running coupling constant in the onefield model. An approach to identify the renormalons is provided by exploiting an analytic solution of the generic oneloop renormalization group equations in multifield theories. Methods to evaluate the regions in coupling space where the theory is resummable are described. The generalization is then illustrated in a toy model with two coupled scalar fields, representing the simplest extension of the onefield analysis presented in the seminal works of the subject. Furthermore, possible links to realistic models are briefly discussed.
 [10] arXiv:1802.06034 [pdf, other]

Title: Fast Summation of Divergent Series and Resurgent Transseries in Quantum Field Theories from MeijerG ApproximantsComments: 18 pages, 9 figures, PDFTeXSubjects: High Energy Physics  Theory (hepth); Mathematical Physics (mathph); Quantum Physics (quantph)
We demonstrate that a MeijerGfunctionbased resummation approach can be successfully applied to approximate the Borel sum of divergent series, and thus to approximate the Borel\'Ecalle summation of resurgent transseries in quantum field theory (QFT). The proposed method is shown to vastly outperform the conventional BorelPad\'e and BorelPad\'e\'Ecalle summation methods. The resulting MeijerG approximants are easily parameterized by means of a hypergeometric ansatz and can be thought of as a generalization to arbitrary order of the BorelHypergeometric method [Mera {\it et al.} Phys. Rev. Lett. {\bf 115}, 143001 (2015)]. Here we illustrate the ability of this technique in various examples from QFT, traditionally employed as benchmark models for resummation, such as: 0dimensional $\phi^4$ theory, $\phi^4$ with degenerate minima, selfinteracting QFT in 0dimensions, and the computation of one and twoinstanton contributions in the quantummechanical doublewell problem.
Crosslists for Mon, 19 Feb 18
 [11] arXiv:1802.05713 (crosslist from hepph) [pdf, other]

Title: A Simple NoScale Model of Modulus Fixing and InflationComments: 12 pages, 6 figuresSubjects: High Energy Physics  Phenomenology (hepph); Cosmology and Nongalactic Astrophysics (astroph.CO); General Relativity and Quantum Cosmology (grqc); High Energy Physics  Theory (hepth)
We construct a noscale model of inflation with a single modulus whose real and imaginary parts are both fixed by stringmotivated corrections to the noscale K{\" a}hler potential. Assuming an uplift of the minimum of the effective potential, the model yields a suitable number of efolds of expansion and values of the tilt in the scalar cosmological density perturbations and of the ratio of tensor and scalar perturbations that are compatible with measurements of the cosmic microwave background radiation.
 [12] arXiv:1802.05718 (crosslist from grqc) [pdf, other]

Title: An Analytical Portrait of Binary Mergers in Hierarchical Triple SystemsComments: 35 pagesSubjects: General Relativity and Quantum Cosmology (grqc); High Energy Astrophysical Phenomena (astroph.HE); High Energy Physics  Phenomenology (hepph); High Energy Physics  Theory (hepth)
With better statistics and precision, eccentricity could prove to be a useful tool for understanding the origin and environment of binary black holes. Hierarchical triples in particular, which are abundant in globular clusters and galactic nuclei, could generate observably large eccentricity at LIGO and future gravitational wave detectors. Measuring the eccentricity distribution accurately could help us probe the background and the formation of the mergers. In this paper we continue our previous investigation and improve our semianalytical description of eccentricity distribution of mergers in galactic nuclei and other hierarchical triple systems. Our result, which further reduces the reliance on numerical simulations, could be useful for statistically distinguishing different formation channels of observed binary mergers.
 [13] arXiv:1802.05765 (crosslist from physics.compph) [pdf, ps, other]

Title: On the algorithm to find Srelated Lie algebrasComments: 6 pages, Talk at ACAT 2017, Seattle, USA, to appear in Proceedings of ACAT 2017Subjects: Computational Physics (physics.compph); High Energy Physics  Theory (hepth); Mathematical Physics (mathph); Numerical Analysis (math.NA)
In this article we describe the Java library that we have recently constructed to automatize the Sexpansion method, a powerful mathematical technique allowing to relate different Lie algebras. An important input in this procedure is the use of abelian semigroups and thus, we start with a brief review about the classification of nonisomorphic semigroups made in the literature during the last decades, and explain how the lists of nonisomorphic semigroups up to order 6 can be used as inputs in many of the methods of our library. After describing the main features of the classes that compose our library we present a new method called fillTemplate which tuns out to be very useful to answer whether two given algebras can be Srelated.
 [14] arXiv:1802.05767 (crosslist from math.RT) [pdf, ps, other]

Title: Generators and relations for Lie superalgebras of Cartan typeComments: 42 pagesSubjects: Representation Theory (math.RT); High Energy Physics  Theory (hepth)
We give an analog of a ChevalleySerre presentation for the Lie superalgebras W(n) and S(n) of Cartan type. These are part of a wider class of Lie superalgebras, the socalled tensor hierarchy algebras, denoted W(g) and S(g), where g denotes the KacMoody algebra A_r, D_r or E_r. Then W(A_{n1}) and S(A_{n1}) are the Lie superalgebras W(n) and S(n). The algebras W(g) and S(g) are constructed from the Dynkin diagram of the BorcherdsKacMoody superalgebras B(g) obtained by adding a single grey node (representing an odd null root) to the Dynkin diagram of g. We redefine the algebras W(A_r) and S(A_r) in terms of Chevalley generators and defining relations. We prove that all relations follow from the defining ones at level 2 and higher. The analogous definitions of the algebras in the D and Eseries are given. In the latter case the full set of defining relations is conjectured.
 [15] arXiv:1802.05808 (crosslist from mathph) [pdf, ps, other]

Title: Nearly associative deformation quantizationComments: 10 pagesSubjects: Mathematical Physics (mathph); High Energy Physics  Theory (hepth)
We study several classes of nonassociative algebras as possible candidates for deformation quantization in the direction of a Poisson bracket that does not satisfy Jacobi identities. We show that in fact alternative deformation quantization algebras require the Jacobi identities on the Poisson bracket and, under very general assumptions, are associative. At the same time, flexible deformation quantization algebras exist for any Poisson bracket.
 [16] arXiv:1802.05881 (crosslist from math.QA) [pdf, ps, other]

Title: Quantum super Nambu bracket of cubic supermatrices and 3Lie superalgebraAuthors: Viktor AbramovComments: 16 pages; accepted for publication in Advances in Applied Clifford AlgebrasSubjects: Quantum Algebra (math.QA); High Energy Physics  Theory (hepth)
We construct the graded triple Lie commutator of cubic supermatrices, which we call the quantum super Nambu bracket of cubic supermatrices, and prove that it satisfies the graded FilippovJacobi identity of 3Lie superalgebra. For this purpose we use the basic notions of the calculus of 3dimensional matrices, define the Z_2graded (or super) structure of a cubic matrix relative to one of the directions of a cubic matrix and the super trace of a cubic supermatrix. Making use of the super trace of a cubic supermatrix we introduce the triple product of cubic supermatrices and find the identities for this triple product, where one of them can be regarded as the analog of ternary associativity. We also show that given a Lie algebra one can construct the $n$ary Lie bracket by means of an (n2)cochain of given Lie algebra and find the conditions under which this nary bracket satisfies the FilippovJacobi identity, thereby inducing the structure of nLie algebra. We extend this approach to nLie superalgebras.
 [17] arXiv:1802.05947 (crosslist from grqc) [pdf, ps, other]

Title: Infrared limit of quantum gravityAuthors: C. WetterichComments: 9 pages , 3 figuresSubjects: General Relativity and Quantum Cosmology (grqc); High Energy Physics  Phenomenology (hepph); High Energy Physics  Theory (hepth)
We explore the infrared limit of quantum gravity. For a positive cosmological constant or effective scalar potential, oneloop perturbation theory around flat space is divergent due to an instability of the graviton propagator. Functional renormalization solves this problem by a flow of couplings avoiding instabilities. This leads to a graviton barrier limiting the maximal growth of the effective potential for large values of scalar fields. In the presence of this barrier, variable gravity can solve the cosmological constant problem by a cosmological runaway solution. We discuss the naturalness of tiny values of the cosmological constant and cosmon mass due to a strong attraction towards an infrared fixed point.
 [18] arXiv:1802.06046 (crosslist from astroph.CO) [pdf, other]

Title: Anisotropies in the stochastic gravitational wave background: formalism and the cosmic string caseComments: 29 pages, 8 figuresSubjects: Cosmology and Nongalactic Astrophysics (astroph.CO); General Relativity and Quantum Cosmology (grqc); High Energy Physics  Theory (hepth)
We develop a powerful analytical formalism for calculating the energy density of the stochastic gravitational wave background, including a full description of its anisotropies. This is completely general, and can be applied to any astrophysical or cosmological source. As an example, we apply these tools to the case of a network of NambuGoto cosmic strings. We find that the anisotropies are relatively insensitive to the choice of model for the string network, but that they are very sensitive to the value of the string tension $G\mu$.
Replacements for Mon, 19 Feb 18
 [19] arXiv:1611.07974 (replaced) [pdf, ps, other]

Title: A Unified HiddenSectorElectroweak Model, Paraphotons and the XBosonComments: 38 pages, 13 figuresSubjects: High Energy Physics  Phenomenology (hepph); High Energy Physics  Theory (hepth)
 [20] arXiv:1612.00145 (replaced) [pdf, ps, other]

Title: Comments on Exchange Graphs in Cluster AlgebrasComments: 18 pages, 4 figures; v2: journal version, an appendix addedSubjects: Quantum Algebra (math.QA); High Energy Physics  Theory (hepth); Rings and Algebras (math.RA)
 [21] arXiv:1703.02500 (replaced) [pdf, ps, other]

Title: Casimir interaction of strained grapheneComments: 5 pages, 3 figures, EPL style, misprint correctedJournalref: Phys.Lett. A381 (2017) 24392443Subjects: Mesoscale and Nanoscale Physics (condmat.meshall); High Energy Physics  Theory (hepth); Quantum Physics (quantph)
 [22] arXiv:1703.05275 (replaced) [pdf, ps, other]

Title: Secluded and Putative Flipped Dark Matter and Stueckelberg Extensions of the Standard ModelComments: 14 pages, no figuresSubjects: High Energy Physics  Phenomenology (hepph); High Energy Astrophysical Phenomena (astroph.HE); High Energy Physics  Theory (hepth)
 [23] arXiv:1704.03040 (replaced) [pdf, ps, other]

Title: Einstein static universe, GUP, and natural IR and UV cutoffsComments: 10 pages, Minor revision, Title change; To be published in "Int. J. Geom. Methods Mod. Phys"Subjects: General Relativity and Quantum Cosmology (grqc); High Energy Physics  Theory (hepth)
 [24] arXiv:1704.03159 (replaced) [pdf, other]

Title: Elliptic hypergeometric sum/integral transformations and supersymmetric lens indexComments: 29 pages, 4 figures; v2: published versionJournalref: SIGMA 14 (2018), 013, 29 pagesSubjects: Mathematical Physics (mathph); High Energy Physics  Theory (hepth); Classical Analysis and ODEs (math.CA); Quantum Algebra (math.QA)
 [25] arXiv:1708.03330 (replaced) [pdf, ps, other]

Title: Twisted Sisters: KK Monopoles and their Zero ModesComments: 5 pages. References addedJournalref: Phys. Rev. Lett. 120, 071603 (2018)Subjects: High Energy Physics  Theory (hepth)
 [26] arXiv:1709.09695 (replaced) [pdf, ps, other]

Title: Higherderivative operators and effective field theory for general scalartensor theoriesComments: 37+3 pages. v2: version published in JCAPJournalref: JCAP 02 (2018) 031Subjects: High Energy Physics  Theory (hepth); Cosmology and Nongalactic Astrophysics (astroph.CO); General Relativity and Quantum Cosmology (grqc)
 [27] arXiv:1710.04729 (replaced) [pdf, other]

Title: Analysis of Dark Matter Axion Clumps with Spherical SymmetryComments: 32 pages, 8 figures. V2: Fixed figure 8 and equation 71. Added clarifications regarding spherical symmetry. Added referencesJournalref: JCAP 01 (2018) 037Subjects: High Energy Physics  Phenomenology (hepph); Cosmology and Nongalactic Astrophysics (astroph.CO); Astrophysics of Galaxies (astroph.GA); High Energy Physics  Theory (hepth)
 [28] arXiv:1710.07685 (replaced) [pdf, other]

Title: Soft collinear effective theory for gravityComments: Two references added. Version accepted by Phys. Rev. DSubjects: High Energy Physics  Theory (hepth); General Relativity and Quantum Cosmology (grqc); High Energy Physics  Phenomenology (hepph)
 [29] arXiv:1711.04568 (replaced) [pdf, other]

Title: Exact largescale correlations in integrable systems out of equilibriumAuthors: Benjamin DoyonComments: 53 pages, 1 figure. v2: 58 pages, explicit results of twopoint functions in sinhGordon and LiebLiniger model addedSubjects: Mathematical Physics (mathph); Statistical Mechanics (condmat.statmech); High Energy Physics  Theory (hepth)
 [30] arXiv:1711.10053 (replaced) [pdf, ps, other]

Title: Quantum deformation of planar amplitudesSubjects: High Energy Physics  Theory (hepth); Mathematical Physics (mathph); Quantum Algebra (math.QA)
 [31] arXiv:1712.09249 (replaced) [pdf, other]

Title: Thermodynamics of EinsteinDBI SystemAuthors: Shesansu Sekhar PalComments: 1+30 pages and 12 figuresSubjects: High Energy Physics  Theory (hepth)
 [32] arXiv:1801.10178 (replaced) [pdf, other]

Title: Probing Cosmic Origins with CO and [CII] Emission LinesComments: We have corrected an error in PIXIE noise curve used in the previous version of the draft. This correction affected the constraints on local PNG from PIXIE. Version 2 of the draft is edited to reflect this change. In this version we also updated the reported Planck constraint to that from the combined temperature and polarization dataSubjects: Cosmology and Nongalactic Astrophysics (astroph.CO); High Energy Physics  Phenomenology (hepph); High Energy Physics  Theory (hepth)
 [33] arXiv:1802.04390 (replaced) [pdf, ps, other]

Title: Veneziano Amplitude of Vasiliev TheoryComments: 30 pages, 6 figures, a missing structure and references addedSubjects: High Energy Physics  Theory (hepth)
 [34] arXiv:1802.04599 (replaced) [pdf, ps, other]

Title: Two Dimensional Dilaton Gravity Theory and Lattice Schwarzian TheoryComments: 10 pages, minor changes, references addedSubjects: High Energy Physics  Theory (hepth)
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