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19922026
Showing 2016 · hep-thShow all

10 papers · 2 filters

hep-th2016★ 26 cited

Quantum radiation from a sandwich black hole

Valeri P. Frolov, Andrei Zelnikov

We discuss quantum radiation of a massless scalar field from a spherically symmetric nonsingular black hole with finite lifetime. Namely, we discuss a sandwich black-hole model, wh…

hep-th2016★ 37 cited

Entanglement Entropy in Causal Set Theory

Rafael D. Sorkin, Yasaman K. Yazdi

Entanglement entropy is now widely accepted as having deep connections with quantum gravity. It is therefore desirable to understand it in the context of causal sets, especially si…

hep-th2016★ 5 cited

Relating Mass to Angular Momentum and Charge in 5-Dimensional Minimal Supergravity

Aghil Alaee, Marcus Khuri, Hari Kunduri

We prove a mass-angular momentum-charge inequality for a broad class of maximal, asymptotically flat, bi-axisymmetric initial data within the context of five-dimensional minimal su…

hep-th2016★ 24 cited

Ingoing Eddington-Finkelstein Metric of an Evaporating Black Hole

Shohreh Abdolrahimi, Don N. Page, Christos Tzounis

We present an approximate time-dependent metric in ingoing Eddington-Finkelstein coordinates for an evaporating nonrotating black hole as a first-order perturbation of the Schwarzs…

hep-th2016★ 21 cited

Qubit Transport Model for Unitary Black Hole Evaporation without Firewalls

Kento Osuga, Don N. Page

We give an explicit toy qubit transport model for transferring information from the gravitational field of a black hole to the Hawking radiation by a continuous unitary transformat…

hep-th2016

Are Most Particles Gravitons?

Don N. Page

The number of baryons in the observable universe is of the order of , as is the number of electrons. The number of photons is about nine orders of magnitude greater, $10^{…

hep-th2016★ 13 cited

Gravitational Casimir effect at finite temperature

A. F. Santos, Faqir C. Khanna

The energy-momentum tensor for the gravitoelectromagnetism (GEM) theory in the real-time finite temperature field theory formalism is presented. Expressions for the Casimir energy…

hep-th2016★ 36 cited

Radiation from an emitter in the ghost free scalar theory

Valeri P. Frolov, Andrei Zelnikov

We study radiation emitted by a time-dependent source of a scalar massless field in the framework of the ghost-free modifications of the theory. We consider a simple model of the e…

hep-th2016★ 20 cited

Super-GCA from Super-Virasoro

Ipsita Mandal, Ahmed Rayyan

We derive the extended Supersymmetric Galilean Conformal Algebra (SGCA) in two spacetime dimensions by the method of group contraction on superconformal al…

hep-th2016★ 8 cited

Vertical D4-D2-D0 bound states on K3 fibrations and modularity

Vincent Bouchard, Thomas Creutzig, Duiliu-Emanuel Diaconescu +3

An explicit formula is derived for the generating function of vertical D4-D2-D0 bound states on smooth K3 fibered Calabi-Yau threefolds, generalizing previous results of Gholampour…