Showing 2013 · hep-thShow all

21 papers · 2 filters

hep-th2013★ 37 cited

UV completion without symmetry restoration

Solomon Endlich, Alberto Nicolis, Riccardo Penco

We show that it is not possible to UV-complete certain low-energy effective theories with spontaneously broken space-time symmetries by embedding them into linear sigma models, tha…

hep-th2013★ 12 cited

Spontaneously broken mass

Solomon Endlich, Alberto Nicolis, Riccardo Penco

The Galilei group involves mass as a central charge. We show that the associated superselection rule is incompatible with the observed phenomenology of superfluid helium 4: this is…

hep-th2013★ 30 cited

On genus expansion of superpolynomials

A. Mironov, A. Morozov, A. Sleptsov +1

Recently it was shown that the (Ooguri-Vafa) generating function of HOMFLY polynomials is the Hurwitz partition function, i.e. that the dependence of the HOMFLY polynomials on repr…

hep-th2013★ 6 cited

Superluminal Vector in Ghost-free Massive Gravity

Siqing Yu

We present a classical analysis on the issue of vector superluminality in the decoupling limit ghost-free massive gravity with a Minkowski reference metric. We show explicitly in t…

hep-th2013★ 37 cited

Kaluza-Klein Towers on General Manifolds

Kurt Hinterbichler, Janna Levin, Claire Zukowski

A higher-dimensional universe with compactified extra dimensions admits a four-dimensional description consisting of an infinite Kaluza-Klein tower of fields. We revisit the proble…

hep-th2013★ 2 cited

Bubble Universe Dynamics After Free Passage

Pontus Ahlqvist, Kate Eckerle, Brian Greene

We consider bubble collisions in single scalar field theories with multiple vacua. Recent work has argued that at sufficiently high impact velocities, collisions between such bubbl…

hep-th2013★ 62 cited

Finalizing the proof of AGT relations with the help of the generalized Jack polynomials

A. Morozov, A. Smirnov

Original proofs of the AGT relations with the help of the Hubbard-Stratanovich duality of the modified Dotsenko-Fateev matrix model did not work for beta different from one, becaus…

hep-th2013★ 9 cited

Complementarity + Back-reaction is enough

Lam Hui, I-Sheng Yang

We investigate a recent development of the black hole information problem, in which a practical paradox has been formulated to show that complementarity is insufficient. A crucial…

hep-th2013★ 62 cited

The squeezed limit of the solid inflation three-point function

Solomon Endlich, Bart Horn, Alberto Nicolis +1

The recently proposed model of 'solid inflation' features a peculiar three-point function for scalar perturbations with an anisotropic, purely quadrupolar, squeezed limit. We confi…

hep-th2013★ 4 cited

Thermodynamics of large N gauge theory from top down holography

Mohammed Mia

By considering fluxes on D7 branes and explicitly computing their back-reaction on the geometry with and without a black hole, we show how the UV divergence of Klebanov-Strassler m…

hep-th2013★ 21 cited

Two-loop vacuum energy for Calabi-Yau orbifold models

Eric D'Hoker, Duong H. Phong

A precise evaluation of the two-loop vacuum energy is provided for certain Z_2 x Z_2 Calabi-Yau orbifold models in the Heterotic string. The evaluation is based on the recent gener…

hep-th2013★ 162 cited

Relativistic Fluids, Superfluids, Solids and Supersolids from a Coset Construction

Alberto Nicolis, Riccardo Penco, Rachel A. Rosen

We provide a systematic coset construction of the effective field theories governing the low-energy dynamics of relativistic fluids and solids, and of their "super" counterparts. T…

hep-th2013★ 44 cited

Finite momentum at string endpoints

Andrej Ficnar, Steven S. Gubser

We argue that classical strings, both bosonic and supersymmetric, can have finite energy and momentum at their endpoints. We show that in a general curved background, string endpoi…

hep-th2013★ 84 cited

More on gapped Goldstones at finite density: More gapped Goldstones

Alberto Nicolis, Riccardo Penco, Federico Piazza +1

It was recently argued that certain relativistic theories at finite density can exhibit an unconventional spectrum of Goldstone excitations, with gapped Goldstones whose gap is exa…

hep-th2013★ 49 cited

On Cosmological Perturbations of Quasidilaton

Guido D'Amico, Gregory Gabadadze, Lam Hui +1

A theory of the quasidilaton is an extension of massive gravity by a scalar field, nonlinearly realizing a certain new global symmetry of the Lagrangian. It has been shown that unl…

hep-th2013★ 156 cited

An Infinite Set of Ward Identities for Adiabatic Modes in Cosmology

Kurt Hinterbichler, Lam Hui, Justin Khoury

We show that the correlation functions of any single-field cosmological model with constant growing-modes are constrained by an infinite number of novel consistency relations, whic…

hep-th2013★ 85 cited

On Squeezed Limits in Single-Field Inflation - Part I

Raphael Flauger, Daniel Green, Rafael A. Porto

The n-point correlation functions in single-field inflation obey a set of consistency conditions in the exact squeezed limit which are not present in multi-field models, and thus a…

hep-th2013★ 86 cited

One-particle-irreducible consistency relations for cosmological perturbations

Walter D. Goldberger, Lam Hui, Alberto Nicolis

We derive consistency relations for correlators of scalar cosmological perturbations which hold in the "squeezed limit" in which one or more of the external momenta become soft. Ou…

hep-th2013★ 61 cited

Tumbling through a landscape: Evidence of instabilities in high-dimensional moduli spaces

Brian Greene, David Kagan, Ali Masoumi +3

We argue that a generic instability afflicts vacua that arise in theories whose moduli space has large dimension. Specifically, by studying theories with multiple scalar fields we…

hep-th2013★ 17 cited

Behavior of perturbations on spherically symmetric backgrounds in multi-Galileon theory

Sebastian Garcia-Saenz

We consider multi-Galileon theory, the most general Galilean invariant theory with scalar fields linearly coupled to the trace of the stress-energy tensor. We study the behavio…

hep-th2013★ 102 cited

Evidence for and Obstructions to Non-Linear Partially Massless Gravity

Claudia de Rham, Kurt Hinterbichler, Rachel A. Rosen +1

Non-linear partially massless (PM) gravity, if it exists, is a theory of massive gravity in which the graviton has four propagating degrees of freedom. In PM gravity, a scalar gaug…