Hawking Radiation in the Spacetime of White Holes

Abstract

A white hole (WH) is a time-reversed black hole (BH) solution in General relativity with a spacetime region to which cannot be entered from the outside. Recently they have been proposed as a possible solution to the information loss problem [Haggard and Rovelli, 2015]. In particular it has been argued that the quantization of the gravitational field may prevent a BH from collapsing entirely with an exponential decay law associated to the black-hole-to-white-hole (BHWH) tunneling scenario [Barcelo, Carballo, and Garay, 2017]. During this period of BHWH transition the Hawking radiation should take place. Taking this possibility into account, we utilize the Hamilton-Jacobi and Parkih-Wilczek methods to study the Hawking radiation viewed as a quantum tunneling effect to calculate the tunneling rate of vector particles tunneling inside (outside) the horizon of a WH (BH), respectively. We show that there is a Hawking radiation associated to a WH spacetime equal to the BH Hawking temperature when viewed from the outside region of the WH geometry. In the framework of Parkih-Wilczek method, surprisingly, we show that Hawking temperature is affected by the initial radial distance at which the gravitational collapse starts.

Ref. [50] added, version published in General Relativity and Gravitation

References in corpus (24)

• Tunnelling, Temperature and Taub-NUT Black Holes
• Temporal contribution to gravitational WKB-like calculations
• Fermion Tunneling Beyond Semiclassical Approximation
• Quantum Tunneling and Trace Anomaly
• Thermal radiation of various gravitational backgrounds
• Black/White hole radiation from dispersive theories
• The lifetime problem of evaporating black holes: mutiny or resignation
• Problems with Tunneling of Thin Shells from Black Holes
• The portrait of eikonal instability in Lovelock theories
• Eikonal instability of Gauss-Bonnet-(anti-)de Sitter black holes
• Black hole radiation of spin-1 particles in (1+2) dimensions
• Charged Vector Particles Tunneling From A Pair of Accelerating and Rotating and $5D$ Gauged Super-Gravity Black Holes
• Acoustic white holes in flowing atomic Bose-Einstein condensates
• The Effect of GUP to Massive Vector and Scalar Particles Tunneling From a Warped DGP Gravity Black Hole
• The Effect of the Gauss-Bonnet term to Hawking Radiation from arbitrary dimensional Black Brane
• Hawking Radiation via Tunneling from Hot NUT-Kerr-Newman-Kasuya Spacetime
• Uninformed Hawking Radiation
• Mutiny at the white-hole district
• Black hole emission of vector particles in (1+1) dimensions
• Stationary Charged Scalar Clouds around Black Holes in String Theory
• Tunneling of Massive/Massless Bosons From the Apparent Horizon of FRW Universe
• Hawking radiation of Dirac monopoles from the global monopole black hole with quantum gravity effects
• Quantum Tunneling of Spin-1 Particles from a 5D Einstein-Yang-Mills-Gauss-Bonnet Black Hole Beyond Semiclassical Approximation
• Charged Vector Particles Tunneling From 5D Black Hole and Black Ring

Cited by in corpus (2)

• White Hole Cosmology and Hawking Radiation from Quantum Cosmological Perturbations
• Some constraints for the extensions of the degenerate Ferrari and Ibanez solution