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Publications Influence

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

2,887 181- PDF

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.

880 56

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

37 15

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

209 14

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

224 13- PDF

Measurement of stimulated Hawking emission in an analogue system.

- S. Weinfurtner, E. Tedford, M. C. Penrice, W. Unruh, G. Lawrence
- Physics, Medicine
- Physical review letters
- 11 August 2010

Hawking argued that black holes emit thermal radiation via a quantum spontaneous emission. To address this issue experimentally, we utilize the analogy between the propagation of fields around black… Expand

297 11- PDF

Experimental black hole evaporation

- W. Unruh
- Physics
- 9 September 2016

The physicist who 35 years ago proposed the construction of “dumb holes” to search for the analog of Hawking radiation is impressed by the recent experiment that looked for entangled thermal… Expand

99 10

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

122 10- PDF

Acceleration radiation and the generalized second law of thermodynamics

It is shown that the Bekenstein limit, S/E< or =2..pi..R, for the entropy-to-energy ratio of matter confined by a box of size R is not needed for the validity of the generalized second law of… Expand

225 8

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

159 8- PDF

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