pinecone/core-2020-05-10-deduplication huggingface dataset:
Finite-Temperature Fractional D2-Branes and the Deconfinement Transition
  in 2+1 Dimensions

The supergravity dual to N regular and M fractional D2-branes on the cone
over \mathbb{CP}^3 has a naked singularity in the infrared. One can resolve
this singularity and obtain a regular fractional D2-brane solution dual to a
confining 2+1 dimensional N = 1 supersymmetric field theory. The confining
vacuum of this theory is described by the solution of Cvetic, Gibbons, Lu and
Pope. In this paper, we explore the alternative possibility for resolving the
singularity - the creation of a regular horizon. The black-hole solution we
find corresponds to the deconfined phase of this dual gauge theory in three
dimensions. This solution is derived in perturbation theory in the number of
fractional branes. We argue that there is a first-order deconfinement
transition. Connections to Chern--Simons matter theories, the ABJM proposal and
fractional M2-branes are presented.Comment: v3: analytic solutions are expose
Holographic GB gravity in arbitrary dimensions

We study the properties of the holographic CFT dual to Gauss-Bonnet gravity
in general $D \ge 5$ dimensions. We establish the AdS/CFT dictionary and in
particular relate the couplings of the gravitational theory to the universal
couplings arising in correlators of the stress tensor of the dual CFT. This
allows us to examine constraints on the gravitational couplings by demanding
consistency of the CFT. In particular, one can demand positive energy fluxes in
scattering processes or the causal propagation of fluctuations. We also examine
the holographic hydrodynamics, commenting on the shear viscosity as well as the
relaxation time. The latter allows us to consider causality constraints arising
from the second-order truncated theory of hydrodynamics.Comment: 48 pages, 9 figures. v2: New discussion on free fields in subsection
  3.3 and new appendix B on conformal tensor fields. Added comments on the
  relation between the central charge appearing in the two-point function and
  the "central charge" characterizing the entropy density in the discussion.
  References adde
Global Properties of Topological String Amplitudes and Orbifold
  Invariants

We derive topological string amplitudes on local Calabi-Yau manifolds in
terms of polynomials in finitely many generators of special functions. These
objects are defined globally in the moduli space and lead to a description of
mirror symmetry at any point in the moduli space. Holomorphic ambiguities of
the anomaly equations are fixed by global information obtained from boundary
conditions at few special divisors in the moduli space. As an illustration we
compute higher genus orbifold Gromov-Witten invariants for C^3/Z_3 and C^3/Z_4.Comment: 34 pages, 3 figure
Glueball Spectra of SQCD-like Theories

We study the spectrum of scalar glueballs in SQCD-like theories whose gravity
description is in terms of Nc D5 color branes wrapped on an S^2 inside a
CY3-fold, and Nf backreacting D5 flavor branes wrapped on a non-compact
two-cycle inside the same CY3-fold. We show that there exists a consistent
truncation of the ten-dimensional Type IIB supergravity system to a
five-dimensional non-linear sigma model consisting of four scalars coupled to
gravity. Studying fluctuations of the scalars as well as the metric around
particular backgrounds allows us to compute their spectra. A few different
backgrounds share the same qualitative features, namely that the mass of the
lightest scalar glueball increases as the number of flavors is increased, until
one reaches the point Nf = 2 Nc after which the opposite behaviour is obtained.
We show that the five-dimensional non-linear sigma model obeys Seiberg duality,
and demonstrate this explicitly for the spectra of a class of backgrounds that
are Seiberg dual to themselves.Comment: 34 pages, 7 figures. Discussion of field theory added. Version to be
  published in JHEP
Holographic Hadrons in a Confining Finite Density Medium

We study a sector of the hadron spectrum in the presence of finite baryon
density. We use a non-supersymmetric gravity dual to a confining guage theory
which exhibits a running dilaton. The interaction of mesons with the finite
density medium is encoded in the dual theory by a force balancing between
flavor D7-branes and a baryon vertex provided by a wrapped D5-brane. When the
current quark mass m_q is sufficiently large, the meson mass reduces,
exhibiting an interesting spectral flow as we increase the baryon density while
it has a more complicated behaviour for very small m_q.Comment: 34 pages, 20 figures, errors for some figures are fixe
$R^4$ couplings and automorphic unipotent representations

Four-graviton, eight-derivative couplings in the low energy effective action
of toroidal type II string compactifications are tightly constrained by
U-duality invariance and by supersymmetry. In this note, we revisit earlier
proposals for the automorphic form governing these couplings in dimension
D=3,4,5,6, and propose that the correct automorphic form is the minimal theta
series for the corresponding U-duality group. Evidence for this proposal comes
from i) the matching of infinitesimal characters, ii) the fact that the Fourier
coefficients have support on 1/2-BPS charges and iii) decompactification
limits. In particular, we show that non-perturbative effects can be interpreted
as 1/2-BPS instantons, or 1/2-BPS particles in one dimension higher (together
with Taub-NUT instantons in the D=3 case). Based on similar considerations, we
also conjecture the form of 1/4-BPS saturated couplings such as $\nabla^4 R^4$
couplings in the same dimensions.Comment: 30 pages; v2: new appendix on decompactification limits, and minor
  corrections, published version; v3: fixed various misprint
Quasinormal modes of massive charged flavor branes

We present an analysis and classification of vector and scalar fluctuations
in a D3/D7 brane setup at finite termperature and baryon density. The system is
dual to an N=2 supersymmetric Yang-Mills theory with SU(N_c) gauge group and
N_f hypermultiplets in the fundamental representation in the quenched
approximation. We improve significantly over previous results on the
quasinormal mode spectrum of D7 branes and stress their novel physical
interpretation. Amongst our findings is a new purely imaginary scalar mode that
becomes tachyonic at sufficiently low temperature and baryon density. We
establish the existence of a critical density above which the scalar mode stays
in the stable regime for all temperatures. In the vector sector we study the
crossover from the hydrodynamic to the quasiparticle regime and find that it
moves to shorter wavelengths for lower temperatures. At zero baryon density the
quasinormal modes move toward distinct discrete attractor frequencies that
depend on the momentum as we increase the temperature. At finite baryon
density, however, the trajectories show a turning behavior such that for low
temperature the quasinormal mode spectrum approaches the spectrum of the
supersymmetric zero temperature normal modes. We interpret this as resolution
of the singular quasinormal mode spectrum that appears at the limiting D7 brane
embedding at vanishing baryon density.Comment: 56 pages, 40 figure
Quantum field theory, gravity and cosmology in a fractal universe

We propose a model for a power-counting renormalizable field theory living in
a fractal spacetime. The action is Lorentz covariant and equipped with a
Stieltjes measure. The system flows, even in a classical sense, from an
ultraviolet regime where spacetime has Hausdorff dimension 2 to an infrared
limit coinciding with a standard $D$-dimensional field theory. We discuss the
properties of a scalar field model at classical and quantum level. Classically,
the field lives on a fractal which exchanges energy-momentum with the bulk of
integer topological dimension D. Although an observer experiences dissipation,
the total energy-momentum is conserved. The field spectrum is a continuum of
massive modes. The gravitational sector and Einstein equations are discussed in
detail, also on cosmological backgrounds. We find ultraviolet cosmological
solutions and comment on their implications for the early universe.Comment: 42 pages, 4 figures. v2: discussion improved
Rotating Membranes in AdS_4xM^{1,1,1}

Motivated by the recent progress on gravity duals of supersymmetric
Chern-Simons matter theories, we consider classical membrane solutions in AdS_4
x M^{1,1,1}. In particular, we present several types of exact solutions
rotating in the Sasaki-Einstein 7-manifold whose isometry is SU(3)xSU(2)xU(1).
We analyze the limiting behavior of macroscopic membranes and discuss how one
can identify the dual operators and the implications of our result on their
conformal dimensions.Comment: v2. added refs. 20 pages, 1 figur
Holographic Duals of Near-extremal Reissner-Nordstrom Black Holes

We consider the $\mathrm{AdS}_3/\mathrm{CFT}_2$ description of
Reissner-Nordstr{\o}m black holes by studying their uplifted counterparts in
five dimensions. Assuming a natural size of the extra dimension, the near
horizon geometries for the extremal limit are exactly $\mathrm{AdS}_3 \times
\mathrm{S}^2$. We compute the scattering amplitude of a scalar field, with a
mode near threshold of frequency and extra dimensional momentum, by a near
extremal uplifted black hole. The absorption cross section agrees with the two
point function of the CFT dual to the scalar field.Comment: reference added, improper statements corrected, 17 pages, no figure
Leptogenesis as a Common Origin for Matter and Dark Matter

We propose a model of asymmetric dark matter (DM) where the dark sector is an
identical copy of both forces and matter of the standard model (SM) as in the
mirror universe models discussed in literature. In addition to being connected
by gravity, the SM and DM sectors are also connected at high temperature by a
common set of heavy right-handed Majorana neutrinos via their Yukawa couplings
to leptons and Higgs bosons. The lightest nucleon in the dark (mirror) sector
is a candidate for dark matter. The out of equilibrium decay of right-handed
neutrino produces equal lepton asymmetry in both sectors via resonant
leptogenesis which then get converted to baryonic and dark baryonic matter. The
dark baryon asymmetry due to higher dark nucleon masses leads to higher dark
matter density compared to the familiar baryon density that is observed. The
standard model neutrinos in this case acquire masses from the inverse seesaw
mechanism. A kinetic mixing between the U(1) gauge fields of the two sectors is
introduced to guarantee the success of Big-Bang Nucleosynthesis.Comment: 16 pages, 1 figure; references adde
Gauge Theory Wilson Loops and Conformal Toda Field Theory

The partition function of a family of four dimensional N=2 gauge theories has
been recently related to correlation functions of two dimensional conformal
Toda field theories. For SU(2) gauge theories, the associated two dimensional
theory is A_1 conformal Toda field theory, i.e. Liouville theory. For this case
the relation has been extended showing that the expectation value of gauge
theory loop operators can be reproduced in Liouville theory inserting in the
correlators the monodromy of chiral degenerate fields. In this paper we study
Wilson loops in SU(N) gauge theories in the fundamental and anti-fundamental
representation of the gauge group and show that they are associated to
monodromies of a certain chiral degenerate operator of A_{N-1} Toda field
theory. The orientation of the curve along which the monodromy is evaluated
selects between fundamental and anti-fundamental representation. The analysis
is performed using properties of the monodromy group of the generalized
hypergeometric equation, the differential equation satisfied by a class of four
point functions relevant for our computation.Comment: 17 pages, 3 figures; references added
Ramond-Ramond field strength couplings on D-branes

By examining in details the disk level S-matrix element of one massless RR
and one NSNS states at order O(\alpha'^2), we find the coupling of one RR and
one NSNS fields on the world volume of a D$_p$-brane. The non-zero couplings
involve the first derivative of the RR field strengths F^{(p)}, F^{(p+2)} and
F^{(p+4)}. We then fix the on-shell ambiguity of the couplings by requiring
consistency with the linear T-duality transformations. Moreover, consistency
with the non-linear T-duality requires that the RR field strength in the above
couplings to be {\cal F}=d{\cal C} where {\cal C}=e^{B}C.Comment: Latex file, 20 pages;v2: references adde
Non-Linearly Extended Self-Dual Relations From The Nambu-Bracket
  Description Of M5-Brane In A Constant C-Field Background

The derivation of the self-dual relations for the two-form gauge field in the
Nambu-bracket description of M5-brane in a constant C-field background
initiated in arXiv:0907.4596 is completed by including contributions from all
the fields in the M5-brane action. The result is used to examine Seiberg-Witten
map of the BPS conditions for the string solitons, up to the first order in the
expansion by the parameter $g$ which characterizes the strength of the
interactions through the Nambu-bracket.Comment: v2: refs, typos and minor changes in wording, 18 pages. v3: some
  clarifying comments
Perturbative tests of non-perturbative counting

We observe that a class of quarter-BPS dyons in N=4 theories with charge
vector (Q, P) and with nontrivial values of the arithmetic duality invariant I
:= gcd (Q wedge P) are nonperturbative in one frame but perturbative in another
frame. This observation suggests a test of the recently computed
nonperturbative partition functions for dyons with nontrivial values of the
arithmetic invariant. For all values of I, we show that the nonperturbative
counting yields vanishing indexed degeneracy for this class of states
everywhere in the moduli space in precise agreement with the perturbative
result.Comment: 10 pages, 0 figure
Remarks on quiver gauge theories from open topological string theory

We study effective quiver gauge theories arising from a stack of D3-branes on
certain Calabi-Yau singularities. Our point of view is a first principle
approach via open topological string theory. This means that we construct the
natural A-infinity-structure of open string amplitudes in the associated
D-brane category. Then we show that it precisely reproduces the results of the
method of brane tilings, without having to resort to any effective field theory
computations. In particular, we prove a general and simple formula for
effective superpotentials.Comment: 26 pages; v2: references added, exposition improved, example
  expanded; v3: minor changes; v4: small changes, corrected a mistake in
  example, all results are unaffecte
D1D5 microstate geometries from string amplitudes

We reproduce the asymptotic expansion of the D1D5 microstate geometries by
computing the emission amplitudes of closed string states from disks with mixed
D1D5 boundary conditions. Thus we provide a direct link between the
supergravity and D-brane descriptions of the D1D5 microstates at non-zero
string coupling. Microscopically, the profile functions characterizing the
microstate solutions are encoded in the choice of a condensate for the twisted
open string states connecting D1 and D5 branes.Comment: 21 pages; added reference
Holographic Superconductor/Insulator Transition at Zero Temperature

We analyze the five-dimensional AdS gravity coupled to a gauge field and a
charged scalar field. Under a Scherk-Schwarz compactification, we show that the
system undergoes a superconductor/insulator transition at zero temperature in
2+1 dimensions as we change the chemical potential. By taking into account a
confinement/deconfinement transition, the phase diagram turns out to have a
rich structure. We will observe that it has a similarity with the RVB
(resonating valence bond) approach to high-Tc superconductors via an emergent
gauge symmetry.Comment: 25 pages, 23 figures; A new subsection on a concrete string theory
  embedding added, references added (v2); Typos corrected, references added
  (v3
Holographic Description of the Phase Diagram of a Chiral Symmetry
  Breaking Gauge Theory

The large N_c N=4 gauge theory with quenched N=2 quark matter in the presence
of a magnetic field displays chiral symmetry breaking. We study the temperature
and chemical potential dependence of this theory using its gravity dual (based
on the D3/D7 brane system). With massless quarks, at zero chemical potential,
the theory displays a first order thermal transition where chiral symmetry is
restored and simultaneously the mesons of the theory melt. At zero temperature,
these transitions with chemical potential are second order and occur at
different chemical potential values. Between the three there are two
tri-critical points, the positions of which we identify. At finite quark mass
the second order transition for chiral symmetry becomes a cross over and there
is a critical point at the end of the first order transition, while the meson
melting transition remains similar to the massless quark case. We track the
movement of the critical points as the mass is raised relative to the magnetic
field.Comment: V1: 13 pages, 10 figures, V2: References adde
Heat kernel expansion and induced action for the matrix model Dirac
  operator

We compute the quantum effective action induced by integrating out fermions
in Yang-Mills matrix models on a 4-dimensional background, expanded in powers
of a gauge-invariant UV cutoff. The resulting action is recast into the form of
generalized matrix models, manifestly preserving the SO(D) symmetry of the bare
action. This provides noncommutative (NC) analogs of the Seeley-de Witt
coefficients for the emergent gravity which arises on NC branes, such as
curvature terms. From the gauge theory point of view, this provides strong
evidence that the NC N=4 SYM has a hidden SO(10) symmetry even at the quantum
level, which is spontaneously broken by the space-time background. The
geometrical view proves to be very powerful, and allows to predict non-trivial
loop computations in the gauge theory.Comment: 44 page
Emergent AdS_3 in the Zero Entropy Extremal Black Holes

We investigate the zero entropy limit of the near horizon geometries of D=4
and D=5 general extremal black holes with SL(2,R)xU(1)^{D-3} symmetry. We
derive some conditions on the geometries from expectation of regularity. We
then show that an AdS_3 structure emerges in a certain scaling limit, though
the periodicity shrinks to zero. We present some examples to see the above
concretely. We also comment on some implications to the Kerr/CFT
correspondence.Comment: 32 pages; v2: minor corrections, references added, v3: minor
  corrections, references added, published in JHE
On Vector Meson Masses in a Holographic SQCD

We study probe flavor branes supersymmetrically embedded in the
Klebanov-Strassler background. The embedding is controlled by a single complex
parameter mu related to the quark mass. We study the spectrum of the vector
mesons as a function of mu and compare it with the experimental data. Assuming
that the rho(2150) meson is a 3S mode we find a remarkable agreement with the
masses of the lightest excited rho-mesons. Also, for a certain range of
parameters our model exhibits an unusual behavior. The mesons built of the
lighter quarks become more heavy than the ones built of the heavier quarks. We
comment on a possible connection this phenomenon may have with the masses of
the putative pure strange-anti strange mesons.Comment: JHEP style, 20 pages, 4 figures; v2: Minor corrections, references
  adde
Shocks and Universal Statistics in (1+1)-Dimensional Relativistic
  Turbulence

We propose that statistical averages in relativistic turbulence exhibit
universal properties. We consider analytically the velocity and temperature
differences structure functions in the (1+1)-dimensional relativistic
turbulence in which shock waves provide the main contribution to the structure
functions in the inertial range. We study shock scattering, demonstrate the
stability of the shock waves, and calculate the anomalous exponents. We comment
on the possibility of finite time blowup singularities.Comment: 37 pages, 7 figure
Higgs portal to visible supersymmetry breaking

We propose a supersymmetric extension of the standard model whose Higgs sector induces a spontaneous supersymmetry breaking by itself. Unlike the minimal extension, the current Higgs mass bound can be evaded even at the tree-level without the help of the soft breaking terms due to the usual hidden sector, as is reminiscent of the next to minimal case. We also have a possibly light pseudo-goldstino in our visible sector in addition to extra Higgs particles, both of which stem from supersymmetry breaking dynamics. In such a setup of visible supersymmetry breaking, we may see a part of supersymmetry breaking dynamics rather directly in future experiments
Type IIB Holographic Superfluid Flows

We construct fully backreacted holographic superfluid flow solutions in a
five-dimensional theory that arises as a consistent truncation of low energy
type IIB string theory. We construct a black hole with scalar and vector hair
in this theory, and study the phase diagram. As expected, the superfluid phase
ceases to exist for high enough superfluid velocity, but we show that the phase
transition between normal and superfluid phases is always second order. We also
analyze the zero temperature limit of these solutions. Interestingly, we find
evidence that the emergent IR conformal symmetry of the zero-temperature domain
wall is broken at high enough velocity.Comment: v3: Published version. Figures 5 and 6 corrected. 24 pages, 7 figure
$SL(2,R)$ symmetry and quasi-normal modes in the BTZ black hole

With the help of two new intrinsic tensor fields associated with the
$SL(2,R)$ quadratic Casimir of Killing fields, we uncover the $SL(2,R)$
symmetry satisfied by the solutions to the equations of motion for various
fields in the BTZ black hole in a uniform way by performing tensor and spinor
analysis without resorting to any specific coordinate system. Then with the
standard algebraic method developed recently, we determine the quasi-normal
modes for various fields in the BTZ black hole. As a result, the quasi-normal
modes are given by the infinite tower of descendants of the chiral highest
weight mode, which is in good agreement with the previous analytic result
obtained by exactly solving equations of motion instead.Comment: JHEP style, 1+13 pages, version to appear in JHE
Jet Substructure and the Search for Neutral Spin-One Resonances in
  Electroweak Boson Channels

Strongly coupled models at the TeV scale often predict one or more neutral
spin-one resonances (Z') which have appreciable branching fractions to
electroweak bosons, namely the Higgs and longitudinal W and Z. These resonances
are usually believed to have multi-TeV mass due to electroweak precision
constraints, placing them on the edge of LHC discovery reach. Searching for
them is made particularly challenging because hadronically decaying electroweak
bosons produced at such high energy will appear very similar to QCD jets. In
this work we revisit the possibility of discovering these resonances at the
LHC, taking advantage of recently developed jet substructure techniques. We
make a systematic investigation of substructure performance for the
identification of highly Lorentz-boosted electroweak bosons, which should also
be applicable to more general new physics searches. We then estimate the
model-independent Z' discovery reach for the most promising final-state
channels, and find significant improvements compared to previous analyses. For
modes involving the Higgs, we focus on a light Higgs decaying to b quarks. We
further highlight several other novelties of these searches. In the case that
vertex-based b-tagging becomes inefficient at high p_T, we explore the utility
of a muon-based b-tag, or no b-tag at all. We also introduce the mode Z' -> Zh
-> (invisible)(bb) as a competitive discovery channel.Comment: 30 pages plus appendices, 12 figure