William G. Unruh
University of British Columbia
166 Papers
676 Citations
William G. Unruh is an academic researcher from University of British Columbia. The author has contributed to research in topics: Black hole & Hawking radiation. The author has an hindex of 46, co-authored 158 publications. Previous affiliations of William G. Unruh include Canadian Institute for Advanced Research & McMaster University.
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Papers
Critical Behavior in the Gravitational Collapse of a Scalar Field with Angular Momentum in Spherical Symmetry
Ignacio Olabarrieta,Jason F. Ventrella,Matthew W. Choptuik,William G. Unruh,William G. Unruh +4 more
TL;DR: In this article, the authors studied the critical collapse of a massless scalar field with angular momentum in spherical symmetry and found that the critical solutions for different values of $l$ are discretely self-similar.
On the origin of the particles in black hole evaporation
Ralf Schützhold,William G. Unruh +1 more
TL;DR: In this paper, an analytic derivation of the Hawking radiation for an arbitrary (spatial) dispersion relation is presented, where the temperature is proportional to the product of the group velocity and phase of the outgoing radiation far away.
Quantum Noise in the Interferometer Detector
William G. Unruh
- 01 Jan 1983
TL;DR: In this paper, the authors examined the quantum noise sources in a laser interferometer detection system for gravitational radiation and found that the quantum nature of the light is the dominant source of noise and contributes via what has been called the photon counting noise and indirectly via the fluctuating force the light exerts on the mirrors.
Cosmic-string loops are straight.
TL;DR: It is shown that a loop of idealized cosmic string deforms the background geometry in its vicinity so that its path and shape become geodesics of this background background for angular deficits smaller thanpi.
Solution to 2+1 Gravity in DreiBein formalism
William G. Unruh,Peter Newbury +1 more
TL;DR: The reduction of the dreibein formalism of 2+1 General Relativity to the holonomies is explicitly performed in this paper, where the authors also show explicitly how to relate these Holonomies to a geometry classically.