Diffraction of ultracold fermions by quantized light fields

Standing versus traveling waves

D. Meiser, C. P. Search, Pierre Meystre

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

We study the diffraction of quantum-degenerate fermionic atoms off of quantized light fields in an optical cavity. We compare the case of a linear cavity with standing-wave modes to that of a ring cavity with two counterpropagating traveling wave modes. It is found that the dynamics of the atoms strongly depends on the quantization procedure for the cavity field. For standing waves, no correlations develop between the cavity field and the atoms. Consequently, standing-wave Fock states yield the same results as a classical standing wave field while coherent states give rise to a collapse and revivals in the scattering of the atoms. In contrast, for traveling waves the scattering results in quantum entanglement of the radiation field and the atoms. This leads to a collapse and revival of the scattering probability even for Fock states. The Pauli exclusion principle manifests itself as an additional dephasing of the scattering probability.

Original languageEnglish (US)
Article number013404
JournalPhysical Review A
Volume71
Issue number1
DOIs
StatePublished - Jan 1 2005

Fingerprint

traveling waves
fermions
cavities
standing waves
diffraction
atoms
scattering
modes (standing waves)
Pauli exclusion principle
radiation distribution
rings

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Physics and Astronomy(all)

Cite this

Diffraction of ultracold fermions by quantized light fields : Standing versus traveling waves. / Meiser, D.; Search, C. P.; Meystre, Pierre.

In: Physical Review A, Vol. 71, No. 1, 013404, 01.01.2005.

Research output: Contribution to journalArticle

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