| Original Articles |
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Photonic Superfluidity in a Kerr Nonlinear Black Body |
| CHENG Ze |
| Department of Physics, Huazhong University of Science and Technology, Wuhan 430074 |
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| Cite this article: |
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CHENG Ze 2005 Chin. Phys. Lett. 22 880-883 |
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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.
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| Keywords:
42.70.Qs
42.65.-k
71.36.+c
74.90.+n
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Published: 01 April 2005
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| PACS: |
42.70.Qs
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(Photonic bandgap materials)
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42.65.-k
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(Nonlinear optics)
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71.36.+c
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(Polaritons (including photon-phonon and photon-magnon interactions))
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74.90.+n
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(Other topics in superconductivity)
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