Optomechanics of a Quantum-Degenerate Fermi Gas

Journal Article · Fri Feb 12 00:00:00 EST 2010 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.104.063601· OSTI ID:21389245

Kanamoto, R ^[1]; Meystre, P ^[2]

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1. Division of Advanced Sciences, Ochadai Academic Production, Ochanomizu University, Bunkyo-ku, Tokyo 112-8610 (Japan)
2. B2 Institute, Department of Physics and College of Optical Sciences, University of Arizona, Tucson, Arizona 85721 (United States)

We explore theoretically the optomechanical interaction between a light field and a mechanical mode of ultracold fermionic atoms inside a Fabry-Perot cavity. The low-lying phonon mode of the fermionic ensemble is a collective density oscillation associated with particle-hole excitations, and is mathematically analogous to the momentum side-mode excitations of a bosonic condensate. The mechanical motion of the fermionic particle-hole system behaves hence as a 'moving mirror'. We derive an effective system Hamiltonian that has the form of generic optomechanical systems. We also discuss the experimental consequences the optomechanical coupling in optical bistability and in the noise spectrum of the system.

• OSTI ID: 21389245
• Journal Information: Physical Review Letters, Vol. 104, Issue 6; Other Information: DOI: 10.1103/PhysRevLett.104.063601; (c) 2010 The American Physical Society; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ATOMS
BOSE-EINSTEIN CONDENSATION
CAVITIES
EXCITATION
FERMI GAS
FERMIONS
HAMILTONIANS
HOLES
OPTICAL SYSTEMS
OSCILLATIONS
PARTICLES
PHONONS
QUANTUM MECHANICS
SPECTRA
VISIBLE RADIATION
ELECTROMAGNETIC RADIATION
ENERGY-LEVEL TRANSITIONS
MATHEMATICAL OPERATORS
MECHANICS
QUANTUM OPERATORS
QUASI PARTICLES
RADIATIONS