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Volumn 97, Issue 19, 2006, Pages

Dipole polarizability of a trapped superfluid fermi gas

Author keywords

[No Author keywords available]

Indexed keywords

ELECTROMAGNETIC WAVE POLARIZATION; NATURAL FREQUENCIES; PHASE SEPARATION; QUENCHING; TEMPERATURE MEASUREMENT;

EID: 33750912210     PISSN: 00319007     EISSN: 10797114     Source Type: Journal    
DOI: 10.1103/PhysRevLett.97.190403     Document Type: Article
Times cited : (10)

References (24)
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  • 8
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    • PRLTAO. 0031-9007. 10.1103/PhysRevLett.96.110403
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    • (2006) Phys. Rev. Lett. , vol.96 , pp. 110403
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    • Yi, W.1    Duan, L.-M.2
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    • F. Chevy, Phys. Rev. Lett. 96, 130401 (2006). PRLTAO 0031-9007 10.1103/PhysRevLett.96.130401
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    • Chevy, F.1
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    • This scenario differs from nuclear physics where the finite value of the symmetry energy is at the origin of the dipole giant resonance [see, e.g., A. Bohr and B.R. Mottelson, Nuclear Structure (W.A. Benjamin, Inc., Reading, MA, 1975), Vol. II].
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    • cond-mat/0607730). Similarly to the BCS calculation (Fig. 2) the effects of this additional phase on the dipole polarization are negligible.
    • The normal-mixed phase can be included using a more sophisticated many-body approach based on the fixed node quantum Monte Carlo calculation (C. Lobo, A. Recati, S. Giorgini, and S. Stringari, cond-mat/0607730). Similarly to the BCS calculation (Fig. 2) the effects of this additional phase on the dipole polarization are negligible.
    • Lobo, C.1    Recati, A.2    Giorgini, S.3    Stringari, S.4
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    • In the deep BEC, even for very large displacements of the potentials, the probability for a molecule to dissociate will be small. In fact, the time scale for an adiabatic displacement process has to be larger than the inverse of the minimum gap between the ground and the first excited state. For a molecule in the deep BEC, a simple WKB estimate gives a minimum gap exponentially small for dâaho: [-2(d/aho)2]. This result is confirmed by the exact solution of the 2-body problem [Zbignew Idziaszek (private communication)].
    • Idziaszek, Z.1
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