Himadri Shekhar Dhar, Subhashish Banerjee, Arpita Chatterjee, Rupamanjari Ghosh. Controllable quantum correlations of two-photon states generated using classically driven three-level atoms


Natural Sciences / Physics / Quantum field theory

Submitted on: Oct 06, 2012, 08:04:39

Description: We investigate the dynamics of two-photon correlations generated by the interaction of a three-level atom in the $Xi$, $Lambda$ or V configuration, with two classical external driving fields, under the rotating-wave approximation, in the presence of level decays. Using the example of a Rubidium atom in each configuration, with field strengths validating the single-photon approximation, we compute measurement based correlations, such as measurement induced disturbance (MID), quantum discord (QD), and quantum work deficit (WD), and compare the results with that of quantum entanglement (concurrence). Certain correlation properties observed are generic, model independent and consistent with known results, e.g., MID is an upper bound on QD, QD and WD are monotonic, and the generic correlation behavior is strongly affected by the purity of the photon states.

The abstract of this article will be published in the October 2012 issue of "Intellectual Archive Bulletin", ISSN 1929-1329.

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