On the Generalised Second-Law of Thermodynamics

  • W. G. Unruh


This note will give a brief report of some work which R. Wald and I1 have done recently. We have discovered that at least one possible technique for violating the generalised second law by using black holes does not work. The reason it does not work is rather surprising in that it makes fundamental use of the physical consequences of the thermal radiation seen in the vacuum by an accelerated observer.


Black Hole Quantum Gravity Thermal Radiation Black Hole Entropy Thermal Fluid 
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  1. 1.
    W.G. Unruh, R.M. Wald, Rev. D. (Scheduled for the Feb. 15, 1982 issue). “Acceleration Radiation and the Generalised Second Law of Thermodynamics”.Google Scholar
  2. 2.
    J. Bekenstein, Phys. Rev. D.93292 (1974).ADSCrossRefGoogle Scholar
  3. 3.
    W.G. Unruh, Phys. Rev. D.14870 (1976).ADSCrossRefGoogle Scholar

Copyright information

© Plenum Press, New York 1984

Authors and Affiliations

  • W. G. Unruh
    • 1
  1. 1.Department of PhysicsUniversity of British ColumbiaCanada

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