| Original Articles |
|
|
|
|
Thermodynamics of Phase Transitions of a Kerr Nonlinear Blackbody |
| CHENG Ze |
| Department of Physics, Huazhong University of Science and Technology, Wuhan 430074 |
|
| Cite this article: |
|
CHENG Ze 2008 Chin. Phys. Lett. 25 3264-3267 |
|
|
|
|
Abstract
We study the thermodynamics of phase transitions of a blackbody whose interior is filled by a Kerr nonlinear crystal. There is a transition temperature Tc, above which the Kerr nonlinear blackbody is in the normal thermal radiation state, and below which it is in the squeezed thermal radiation state. At Tc, the Gibbs free energy of the two phases is continuous but the entropy density of the two phases is discontinuous. Hence, there is a jump in the entropy density and this leads to a latent heat density. The photon system undergoes a first-order phase transition from the normal to the squeezed thermal radiation state.
|
| Keywords:
42.65.Hw
71.36.+c
42.70.Qs
|
|
|
Received: 13 May 2008
Published: 29 August 2008
|
|
| PACS: |
42.65.Hw
|
(Phase conjugation; photorefractive and Kerr effects)
|
| |
71.36.+c
|
(Polaritons (including photon-phonon and photon-magnon interactions))
|
| |
42.70.Qs
|
(Photonic bandgap materials)
|
|
|
|
|
|
[1]Onnes H K 1913 Commun. Phys. Lab. Univ. Leiden, Suppl.Nos 122 \& 124
[2]Kapitza P L 1932 Nature 141 74
[3] Anderson M H, Ensher J R, Matthews M R, Wieman C E andCornell E A 1995 Science 269 198
[4]Greiner M et al 2002 Nature 415 39
[5]Cheng Ze 2001 Phys. Lett. A 291 4
[6]Cheng Ze 2002 J. Opt. Soc. Am. B 19 1692
[7]Cheng Ze 2004 Phys. Lett. A 331 170
[8]Cheng Ze 2005 Phys. Rev. A 71 033808
[9]Landau L D and Lifshitz E M 1980 Statistical PhysicsPart 1 3rd edn (Oxford: Reed Educational) p 183
[10]Hayes W and Loudon R 1978 Scattering of Light byCrystals (New York: Wiley)
[11]Cooper L N 1956 Phys. Rev. 104 1189
[12]Bardeen J et al 1957 Phys. Rev. 108 1175 |
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
