Enhanced time-dependent photon correlations
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BARDETSKI, Profirie, CIORNEA, Viorel, MACOVEI, Mihai. Enhanced time-dependent photon correlations. In: Materials Science and Condensed Matter Physics, Ed. 7, 16-19 septembrie 2014, Chișinău. Chișinău, Republica Moldova: Institutul de Fizică Aplicată, 2014, Editia 7, p. 67.
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Materials Science and Condensed Matter Physics
Editia 7, 2014
Conferința "Materials Science and Condensed Matter Physics"
7, Chișinău, Moldova, 16-19 septembrie 2014

Enhanced time-dependent photon correlations


Pag. 67-67

Bardetski Profirie, Ciornea Viorel, Macovei Mihai
 
Institute of Applied Physics, Academy of Sciences of Moldova
 
Disponibil în IBN: 25 februarie 2019


Rezumat

Photon conelations are intensively investigated and their relevance in various fields of modem physics is widely recognized [1]. In paiiicular, lai·ger photon conelations are useful in photonic quantum infonnation processing as well as for a number of practical applications in many-body phenomena like, e.g., c1ystallization of strongly interacting photons. Here we discuss the feasibilities to achieve stronger photon-photon conelations involving both intense laser-qubit pumping and qubit-resonator coupling strengths (go )· The system of interest consists of a spontaneous damped two-level radiator ( qubit) resonantly interacting with a moderately strong coherent light somce and placed in a leaking optical micro-resonator. When the conesponding Rabi frequency (Q) is considerably larger than the respective spontaneous (y) and cavity (K) decay rates while the qubit cavity coupling is reasonable strong, but weaker than the Rabi frequency, we demonstrate that such a system generates enhanced time-dependent micro-cavity photon-photon conelations proper to super-Poissonian photon statistics. Actually, the nonlinear effects due to increased qubit-cavity couplings are responsible for lai·ger values of the second-order photon conelation function [2]. Fmihe1more, the photon-photon conelation function at paiiiculai· time-intervals is lai·ger than the conesponding one obtained in the steady-state (see Figures). The steady-state (Left) and the time- (Right) dependencies of the micro-cavity second-order photon conelation function g<2> (0) versus the pai·ameter KI r and Kt, respectively (where r oc r ). Sho1i­ dashed, long-dashed, and solid curves are, respectively, for /JI r = 0, 0.05, and 0.1 (where /J=g;/n). Other parameters ai·e: n=l and g0 1[=5. Right: Kif=l0-3.