Slow group velocity and Cherenkov radiation
Anno: 2001
Autori: Carusotto I., Artoni M., La Rocca G.C., Bassani F.
Affiliazione autori: Univ Salerno, Dipartimento Fis ER Caianiello, I-84081 Baronissi, SA, Italy; Scuola Normale Super Pisa, INFM, I-56126 Pisa, Italy; INFM, European Lab Nonlinear Spect, I-50125 Florence, Italy.
Abstract: We study theoretically the effect of ultraslow group velocities on the emission of Vavilov-Cherenkov radiation in a coherently driven medium. We show that in this case the aperture of the group cone on which the intensity of the radiation peaks is much smaller than that of the usual wave cone associated with the Cherenkov coherence condition. As a specific example, we consider a coherently driven ultracold atomic gas where such singular behavior may be observed.
Giornale/Rivista: PHYSICAL REVIEW LETTERS
Volume: 87 (6) Da Pagina: 64801-1 A: 64801-4
Parole chiavi: Atomic Gas; LightDOI: 10.1103/PhysRevLett.87.064801Citazioni: 39dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2025-03-16Riferimenti tratti da Isi Web of Knowledge: (solo abbonati)
