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Notes on black-hole evaporation

- W. Unruh
- Physics
- 15 August 1976

This paper examines various aspects of black-hole evaporation. A two-dimensional model is investigated where it is shown that using fermion-boson cancellation on the stress-energy tensor reduces the… Expand

Experimental black hole evaporation

- W. Unruh
- Physics
- 25 May 1981

It is shown that the same arguments which lead to black-hole evaporation also predict that a thermal spectrum of sound waves should be given out from the sonic horizon in transsonic fluid flow.

Absorption Cross-Section of Small Black Holes

- W. Unruh
- Physics
- 15 December 1976

The absorption cross section of small nonrotating black holes is calculated for massive scalar and Dirac particles. The latter cross section is shown to be exactly 1/8 of the former for all energies… Expand

Why study quantum theory

- W. Unruh
- Physics
- 1 February 1986

It is argued that the study of the problems associated with quantum mechanics and gravity, and especially those arising from the role of measurement in quantum gravity, have led and will continue to… Expand

Measurement of stimulated Hawking emission in an analogue system.

- S. Weinfurtner, E. Tedford, M. Penrice, W. Unruh, G. Lawrence
- PhysicsPhysical review letters
- 11 August 2010

TLDR

Energy-momentum tensor near an evaporating black hole

- P. Davies, S. Fulling, W. Unruh
- Physics
- 15 May 1976

We calculate the vacuum expectation value, T/sub ..mu nu../, of the energy--momentum tensor of a massless scalar field in a general two-dimensional spacetime and evaluate it in a two-dimensional… Expand

What happens when an accelerating observer detects a Rindler particle

The nature of the interaction between a quantum field and an accelerating particle detector is analyzed from the point of view of an inertial observer. It is shown in detail for the simple case of a… Expand

Gravity wave analogues of black holes

- R. Schutzhold, W. Unruh
- Physics
- 23 May 2002

It is demonstrated that gravity waves of a flowing fluid in a shallow basin can be used to simulate phenomena around black holes in the laboratory. Since the speed of the gravity waves as well as… Expand

Universality of the Hawking effect

- W. Unruh, R. Schutzhold
- Physics
- 3 August 2004

Addressing the question of whether the Hawking effect depends on degrees of freedom at ultrahigh (e.g., Planckian) energies/momenta, we propose three rather general conditions on these degrees of… Expand

How the huge energy of quantum vacuum gravitates to drive the slow accelerating expansion of the Universe

- Qingdi Wang, Zhenyu Zhu, W. Unruh
- Physics
- 1 March 2017

We investigate the gravitational property of the quantum vacuum by treating its large energy density predicted by quantum field theory seriously and assuming that it does gravitate to obey the… Expand

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