Causality and the speed of sound - INSPIRE

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Causality and the speed of sound

George Ellis
(
- Cape Town U.
)
,
Roy Maartens
(
- Portsmouth U., ICG
)
,
Malcolm A.H. MacCallum
(
- Queen Mary, U. of London
)

Mar, 2007

6 pages

Published in:

Gen.Rel.Grav. 39 (2007) 1651-1660

e-Print:

gr-qc/0703121 [gr-qc]

DOI:

10.1007/s10714-007-0479-2

View in:

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Abstract: (arXiv)

A usual causal requirement on a viable theory of matter is that the speed of sound be at most the speed of light. In view of various recent papers querying this limit, the question is revisited here. We point to various issues confronting theories that violate the usual constraint.

velocity: acoustic
field theory: scalar
invariance: Lorentz
causality: violation
fluid: model
velocity: superluminal
relativity theory

References(13)

Figures(0)

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Allan Adams
(
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)
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)
,
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(
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)

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•
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)

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•
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•
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•
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(
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)
,
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(
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)
,
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(
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)

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(
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)
,
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(
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)

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•
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•
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(
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)
,
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)

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•
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(
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)
,
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(
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)

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(
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•
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(
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•
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