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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Vol. 3, Iss. 11 — Nov. 10, 2005
  • pp: 621–624

Energy spectrum of fermionized bosonic atoms in optical lattices

Jiurong Han, Haichao Zhang, and Yuzhu Wang  »View Author Affiliations


Chinese Optics Letters, Vol. 3, Issue 11, pp. 621-624 (2005)


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Abstract

We investigate the energy spectrum of fermionized bosonic atoms, which behave very much like spinless noninteracting fermions, in optical lattices by means of the perturbation expansion and the retarded Green's function method. The results show that the energy spectrum splits into two energy bands with single-occupation; the fermionized bosonic atom occupies nonvanishing energy state and left hole has a vanishing energy at any given momentum, and the system is in Mott-insulating state with a energy gap. Using the characteristic of energy spectra we obtained a criterion with which one can judge whether the Tonks-Girardeau (TG) gas is achieved or not.

© 2005 Chinese Optics Letters

OCIS Codes
(020.0020) Atomic and molecular physics : Atomic and molecular physics
(270.0270) Quantum optics : Quantum optics
(300.6170) Spectroscopy : Spectra

Citation
Jiurong Han, Haichao Zhang, and Yuzhu Wang, "Energy spectrum of fermionized bosonic atoms in optical lattices," Chin. Opt. Lett. 3, 621-624 (2005)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-3-11-621

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