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Now showing items 11-20 of 38
Generation of a superposition of multiple mesoscopic states of radiation in a resonant cavity
(American Physical Society, 2005-04-27)
Using resonant interaction between atoms and the field in a high quality cavity, we show how to generate a superposition of many mesoscopic states of the field. We study the quasi-probability distributions and demonstrate ...
Quantum optical spring
(American Physical Society, 2008-07-22)
We study the dynamics of the quantum optical spring, i.e., a spring whose spring constant undergoes discrete jumps depending on the quantum state of another system. We show the existence of revivals and fractional revivals ...
Competition between electromagnetically induced transparency and Raman processes
(American Physical Society, 2006-10-05)
We present a theoretical formulation of the competition between electromagnetically induced transparency (EIT) and Raman processes. The latter become important when the medium can no longer be considered to be dilute. ...
Quantum interferences in cooperative Dicke emission from spatial variation of the laser phase
(American Physical Society, 2008-10-06)
We report generation of a new quantum interference effect in spontaneous emission from a resonantly driven system of two identical two-level atoms due to the spatial variation of the laser phase at the positions of the ...
Fast light solitons in resonant media
(American Physical Society, 2007-04-05)
Using the structure of the Maxwell-Schrodinger equations in two-level systems in the transient domain, we derive both single-soliton and multisoliton (2n pi pulse) solutions associated with fast light in resonant media. ...
Class of solitary wave solutions of the one-dimensional Gross-Pitaevskii equation
(American Physical Society, 2006-05-19)
We present a large family of exact solitary wave solutions of the one-dimensional Gross-Pitaevskii equation, with time-varying scattering length and gain or loss, in both expulsive and regular parabolic confinement regimes. ...
Large two-atom two-photon vacuum Rabi oscillations in a high-quality cavity
(American Physical Society, 2004-10-11)
We predict a large cooperative effect involving two-atom two-photon vacuum Rabi oscillations in a high-quality cavity. The two-photon emission occurs as a result of simultaneous deexcitation of both atoms with two-photon ...
Inseparability inequalities for higher order moments for bipartite systems
(IOP Publishing, 2005-10-07)
There are several examples of bipartite entangled states of continuous variables for which the existing criteria for entanglement using the inequalities involving the second-order moments are insufficient. We derive new ...
Nonclassical correlation of polarization-entangled photons in a biexciton-exciton cascade
(IOP Publishing, 2008-11-07)
We develop a theoretical model to study the intensity–intensity correlation of polarization-entangled photons emitted in a biexciton–exciton cascade. We calculate the degree of correlation and show how polarization ...
dc-field-induced enhancement and inhibition of spontaneous emission in a cavity
(American Physical Society, 2004-08-20)
We demonstrate how spontaneous emission in a cavity can be controlled by the application of a dc field. The method is specially suitable for Rydberg atoms. We present a simple argument based on Stark shifts for the control ...