Spin noise spectroscopy to probe quantum states of ultracold fermionic atom gases

Journal Article · Fri Dec 15 00:00:00 EST 2006 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.74.063608· OSTI ID:20976522

Mihaila, Bogdan; Blagoev, Krastan B; Smith, Darryl L ^[1]; Crooker, Scott A; Rickel, Dwight G ^[2]; Littlewood, Peter B ^[3]

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1. Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
2. National High Magnetic Field Laboratory, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
3. Cavendish Laboratory, Madingley Road, Cambridge CB3 0HE (United Kingdom)

We theoretically demonstrate that optical measurements of electron spin noise can be a spectroscopic probe of the entangled quantum states of ultracold fermionic atom gases and unambiguously reveal the detailed nature of the underlying interatomic correlations. Different models of the effective interatomic interactions predict entirely new sets of resonances in the spin noise spectrum. Once the correct effective interatomic interaction model is identified, the detailed noise line shapes of the spin noise can be used to constrain this model. We estimate the magnitude of spin noise signals expected in ultracold fermionic atom gases via noise measurements in classical alkali vapors, which demonstrate the feasibility of this approach.

• OSTI ID: 20976522
• Journal Information: Physical Review. A, Vol. 74, Issue 6; Other Information: DOI: 10.1103/PhysRevA.74.063608; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ATOMS
CORRELATIONS
ELECTRONS
FERMIONS
INTERACTIONS
LASER RADIATION
NOISE
OPTICS
PROBES
QUANTUM ENTANGLEMENT
RESONANCE
SPECTROSCOPY
SPIN