BEGIN:VCALENDAR VERSION:2.0 PRODID:researchseminars.org CALSCALE:GREGORIAN X-WR-CALNAME:researchseminars.org BEGIN:VEVENT SUMMARY:S. Lakshmi Bala DTSTART:20250929T090000Z DTEND:20250929T094500Z DTSTAMP:20260423T041408Z UID:QOART2025/4 DESCRIPTION:Title: Nonclassical effects in the dynamics of atom-light interactions\nby S. Lakshmi Bala as part of Quantum Optics and Related Topics 2025\n\n\nAbs tract\nA wide range of nonclassical effects such as wavepacket revivals an d fractional revivals\,\nand interesting changes in quantum entanglement c an be observed in several bipartite\nsystems of atoms interacting with the radiation field\, as they evolve in time. The role\nof quantum observable s in the complex dynamics of bipartite quantum systems is also\nwell-known . As a quantum system governed by a nonlinear Hamiltonian evolves unitaril y\,\nthe subsystems interact dissipatively. The naive Ehrenfest connection between classical\nmotion and the dynamics of quantum expectation values has to be appropriately modified\nin this context. An analysis of the time series of relevant subsystem observables can bring\nto light interesting ergodicity properties ranging from periodic behaviour to exponential\nsens itivity to the initial state of the system under consideration\, and the r ole played by the\nparameters in the Hamiltonian in determining the detail s of the dynamics. I will illustrate\nthe foregoing using simple and gener ic bipartite models of relevance to optics.\n LOCATION:https://researchseminars.org/talk/QOART2025/4/ END:VEVENT END:VCALENDAR