Photonic Superfluidity in a Kerr Nonlinear Black Body
CHENG Ze
Department of Physics, Huazhong University of Science and Technology, Wuhan 430074
Photonic Superfluidity in a Kerr Nonlinear Black Body
CHENG Ze
Department of Physics, Huazhong University of Science and Technology, Wuhan 430074
关键词 ：
42.70.Qs ,
42.65.-k ,
71.36.+c ,
74.90.+n
Abstract ： We study a photon blackbody field in Kerr nonlinear crystals in a superfluid state in which bare photons with opposite wave vectors and helicities are bound into pairs and unpaired photons are transformed into a new kind of quasiparticle, the nonpolariton. The photon-pair system is a superfluid and the nonpolariton system is a normal fluid. At zero temperature the superfluid possesses a large persistent energy density. It has been found that the spectral energy density and the radiation pressure of a Kerr nonlinear black body are larger than those of a normal black body.
Key words ：
42.70.Qs
42.65.-k
71.36.+c
74.90.+n
出版日期: 2005-04-01
:
42.70.Qs
(Photonic bandgap materials)
42.65.-k
(Nonlinear optics)
71.36.+c
(Polaritons (including photon-phonon and photon-magnon interactions))
74.90.+n
(Other topics in superconductivity)
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2005, Vol. 22 
