BEGIN:VCALENDAR VERSION:2.0 PRODID:researchseminars.org CALSCALE:GREGORIAN X-WR-CALNAME:researchseminars.org BEGIN:VEVENT SUMMARY:Rajiuddin Sk DTSTART:20240907T060000Z DTEND:20240907T063000Z DTSTAMP:20260423T040150Z UID:QOART/28 DESCRIPTION:Title: R ole of Stark shift effect in preserving quantum correlations\nby Rajiu ddin Sk as part of Quantum Optics and Related Topics\n\n\nAbstract\nIn thi s talk\, I will present an analysis of the dynamics of quantum correlation s in a\nsystem of two two-level atoms undergoing two-photon transitions vi a an intermediate virtual\nstate. Each atom is coupled to a dissipative re servoir at zero temperature\, with the presence\nof the Stark shift effect playing a crucial role. We explore the exact expressions for Bures\ndista nce entanglement\, trace distance discord\, and local quantum uncertainty under two\ndifferent environmental initial conditions: the ground state an d the first excited state. Notably\,\nthe first excited state reveals the influence of both Stark shift parameters\, whereas the\nground state only highlights one. Our findings indicate that quantum correlations can be\nma intained for extended periods due to the Stark shift effect\, with a more pronounced impact\nobserved in non-Markovian reservoirs\, even at minimal Stark shift values. Additionally\, we\nidentify a sudden change phenomenon in local quantum uncertainty\, marked by an abrupt\nshift in the decay ra te. These results are crucial for understanding how to preserve quantum\nc orrelations\, which are essential for optimizing performance in quantum in formation\nprocessing.\n\nReference:\n\n(1) Chandra\, Nitish Kumar\, Rajiu ddin Sk\, and Prasanta K. Panigrahi. "Preservation and\nenhancement of qua ntum correlations under Stark effect." Journal of Modern Optics 70.4 (2023 ):\n232-242.\n\n(2) Bashkirov\, E. K.\, and M. S. Rusakova. "Entanglement for two-atom Tavis–Cummings model with\ndegenerate two-photon transition s in the presence of the Stark shift." Optik 123.19 (2012): 1694-1699.\n LOCATION:https://researchseminars.org/talk/QOART/28/ END:VEVENT END:VCALENDAR