Quantum radiation from quantum gravitational collapse

  title={Quantum radiation from quantum gravitational collapse},
  author={Tanmay Vachaspati and Dejan Stojkovi{\'c}},
  journal={Physics Letters B},
We study quantum radiation emitted during the collapse of a quantized, gravitating, spherical domain wall. The amount of radiation emitted during collapse now depends on the wavefunction of the collapsing wall and the background spacetime. If the wavefunction is initially in the form of a sharp wavepacket, the expectation value of the particle occupation number is determined as a function of time and frequency. The results are in good agreement with our earlier semiclassical analysis and show… Expand
Schrödinger picture of quantum gravitational collapse
The functional Schrodinger equation is used to study the quantum collapse of a gravitating, spherical domain wall and a massless scalar field coupled to the metric. The approach includes backreactionExpand
Gravitational collapse with quantum fields
Gravitational collapse into a black hole has been extensively studied with classical sources. We develop a new formalism to simulate quantum fields forming a black hole. This formalism utilizesExpand
Gravitational collapse of quantum fields and Choptuik scaling
Gravitational collapse into a black hole has been extensively studied with classical sources. We develop a new formalism to simulate quantum fields forming a black hole. By choosing a convenientExpand
Quantum radiation of a collapsing shell in three-dimensional AdS spacetime revisited
  • Hwajin Eom, Wontae Kim
  • Physics
  • Journal of High Energy Physics
  • 2021
Abstract In three-dimensional AdS space, we consider the gravitational collapse of dust shell and then investigate the quantum radiation from the collapsing shell by employing the functionalExpand
Role of evaporation in gravitational collapse
We investigate the possibility that quantum effects responsible for black hole radiation do not allow for hori- zon crossing of gravitationally collapsing matter in a finite time as seen by distantExpand
Pre-Hawking radiation from a collapsing shell
We investigate the effect of induced massive radiation given off during the time of collapse of a massive spherically symmetric domain wall in the context of the functional Schrodinger formalism.Expand
Quantum gravitational collapse: non-singularity and non-locality
We investigate gravitational collapse in the context of quantum mechanics. We take primary interest in the behavior of the collapse near the horizon and near the origin (classical singularity) fromExpand
Gravitational collapse and Hawking-like radiation of a shell in AdS spacetime
In this paper, we study the collapse of a massive shell in 2+1 and 3+1 dimensional gravity with Anti-de Sitter asymptotics. Using the Gauss-Codazzi method, we derive gravitational equations of motionExpand
Classical and quantum equations of motion for a BTZ black string in AdS space
We investigate gravitational collapse of a (3+1)-dimensional BTZ black string in AdS space in the context of both classical and quantum mechanics. This is done by first deriving the conserved massExpand
Properties of Black Hole Radiation From Tunnelling
We consider the spacetime associated with the evaporation of a black hole by quantum mechanical tunnelling events. It is shown that the surface through which tunnelling occurs is distinct from theExpand


Hawking radiation and thin shells
The properties of quantized scalar and Dirac fields around a collapsing thin shell are discussed and the Hawking radiation exhibited. The radiation is seen to be a result of the collapse processExpand
Quantum Fields in Curved Space
This book presents a comprehensive review of the subject of gravitational effects in quantum field theory. Although the treatment is general, special emphasis is given to the Hawking black holeExpand
Black hole evaporation: a paradigm
A paradigm describing black hole evaporation in non-perturbative quantum gravity is developed by combining two sets of detailed results: (i) resolution of the Schwarzschild singularity using quantumExpand
Origin of Hawking radiation.
  • Hájícek
  • Physics, Medicine
  • Physical review. D, Particles and fields
  • 1987
It seems that the Hawking effect is associated with themore rather than the event horizon, as an extrapolation of some properties of from a neighborhood of the Schwarzschild horizon to that of an apparent horizon forming in a collapse leads to the result that too much energy is radiated away already before the apparent horizon forms. Expand
Observation of Incipient Black Holes and the Information Loss Problem
We study the formation of black holes by spherical domain wall collapse as seen by an asymptotic observer, using the functional Schrodinger formalism. To explore what signals such observers will see,Expand
Gravitationally repulsive domain wall
The Gauss-Codazzi formalism is used to obtain exact solutions to Einstein's equations in the presence of domain walls. Domain walls are shown to have repulsive gravitational fields. The most generalExpand
The Mechanism of blackbody radiation from the incipient black hole
On the basis of the phenomenon of zero-point energy an account is given of the mechanism of the emission of blackbody radiation from an incipient (about-to-be-formed) black hole, which results fromExpand
Harmonic oscillator with time-dependent mass and frequency and a perturbative potential.
  • Dantas, Pedrosa, Baseia
  • Physics, Medicine
  • Physical review. A, Atomic, molecular, and optical physics
  • 1992
A general treatment of the quantized harmonic oscillator with time-dependent mass and frequency is presented and exact coherent states for such systems are constructed. Expand
Particle creation by black holes
AbstractIn the classical theory black holes can only absorb and not emit particles. However it is shown that quantum mechanical effects cause black holes to create and emit particles as if they wereExpand