Probing quasiparticle states in strongly interacting atomic gases by momentum-resolved Raman photoemission spectroscopy
Anno: 2009
Autori: Dao T.L., Carusotto I., Georges A.
Affiliazione autori: Centre de Physique Théorique, Ecole Polytechnique, CNRS, 91128 Palaiseau Cedex, France; CNR-INFM BEC Center and Università di Trento, 38050 Povo, Italy; Institute for Quantum Electronics, ETH Zürich, 8093 Zürich, Switzerland; Collège de France, 11 Place Marcelin Berthelot, 75005 Paris, France
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.
Giornale/Rivista: PHYSICAL REVIEW A
Volume: 80 (2) Da Pagina: 023627 A: 023627
Maggiori informazioni: We acknowledge the support of the Agence Nationale de la Recherche under contracts GASCOR and FABIOLA, and of the DARPA-OLE program.DOI: 10.1103/PhysRevA.80.023627Citazioni: 24dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2024-12-08Riferimenti tratti da Isi Web of Knowledge: (solo abbonati) Link per visualizzare la scheda su IsiWeb: Clicca quiLink per visualizzare la citazioni su IsiWeb: Clicca qui
