We investigate a momentum-resolved Raman spectroscopy technique which is able to probe the one-body spectral function and the quasiparticle states of a gas of strongly interacting ultracold atoms. This technique is inspired by angle-resolved photoemission spectroscopy, a powerful experimental probe of electronic states in solid-state systems. Quantitative examples of experimentally accessible spectra are given for the most significant regimes along the BEC-BCS crossover. When the theory is specialized to rf spectroscopy, agreement is found with recent experimental data. The main advantages of this Raman spectroscopy over existing techniques are pointed out.

Probing quasiparticle states in strongly interacting atomic gases by momentum-resolved Raman photoemission spectroscopy / Dao, Tl; Carusotto, I; Georges, A. - In: PHYSICAL REVIEW A. - ISSN 1050-2947. - 80:2(2009). [10.1103/PhysRevA.80.023627]

Probing quasiparticle states in strongly interacting atomic gases by momentum-resolved Raman photoemission spectroscopy

Carusotto I;
2009

Abstract

We investigate a momentum-resolved Raman spectroscopy technique which is able to probe the one-body spectral function and the quasiparticle states of a gas of strongly interacting ultracold atoms. This technique is inspired by angle-resolved photoemission spectroscopy, a powerful experimental probe of electronic states in solid-state systems. Quantitative examples of experimentally accessible spectra are given for the most significant regimes along the BEC-BCS crossover. When the theory is specialized to rf spectroscopy, agreement is found with recent experimental data. The main advantages of this Raman spectroscopy over existing techniques are pointed out.
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Dao, Tl; Carusotto, I; Georges, A
Probing quasiparticle states in strongly interacting atomic gases by momentum-resolved Raman photoemission spectroscopy / Dao, Tl; Carusotto, I; Georges, A. - In: PHYSICAL REVIEW A. - ISSN 1050-2947. - 80:2(2009). [10.1103/PhysRevA.80.023627]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11572/344152
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