Abstract
The author investigates the change in event-horizon area in cosmological models that depart slightly from de Sitter space. If the gravitational source is a perfect inviscid fluid satisfying the dominant energy condition, the area is proved to be non-decreasing. If the fluid is viscous, the area can decrease, but the attendant generation of entropy ensures that the generalised second law of thermodynamics remains unviolated.
| Original language | English (US) |
|---|---|
| Article number | 006 |
| Journal | Classical and Quantum Gravity |
| Volume | 4 |
| Issue number | 6 |
| DOIs | |
| State | Published - 1987 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
Cosmological horizons and the generalised second law of thermodynamics. / Davies, Paul.
In: Classical and Quantum Gravity, Vol. 4, No. 6, 006, 1987.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Cosmological horizons and the generalised second law of thermodynamics
AU - Davies, Paul
PY - 1987
Y1 - 1987
N2 - The author investigates the change in event-horizon area in cosmological models that depart slightly from de Sitter space. If the gravitational source is a perfect inviscid fluid satisfying the dominant energy condition, the area is proved to be non-decreasing. If the fluid is viscous, the area can decrease, but the attendant generation of entropy ensures that the generalised second law of thermodynamics remains unviolated.
AB - The author investigates the change in event-horizon area in cosmological models that depart slightly from de Sitter space. If the gravitational source is a perfect inviscid fluid satisfying the dominant energy condition, the area is proved to be non-decreasing. If the fluid is viscous, the area can decrease, but the attendant generation of entropy ensures that the generalised second law of thermodynamics remains unviolated.
UR - http://www.scopus.com/inward/record.url?scp=0000612681&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0000612681&partnerID=8YFLogxK
U2 - 10.1088/0264-9381/4/6/006
DO - 10.1088/0264-9381/4/6/006
M3 - Article
AN - SCOPUS:0000612681
VL - 4
JO - Classical and Quantum Gravity
JF - Classical and Quantum Gravity
SN - 0264-9381
IS - 6
M1 - 006
ER -