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quant-ph2010★ 92 cited
Open system quantum dynamics with correlated initial states, not completely positive maps and non-Markovianity
A. R. Usha Devi, A. K. Rajagopl, Sudha
Dynamical A and B maps have been employed extensively by Sudarshan and co-workers to investigate open system evolution of quantum systems. A canonical structure of the A-map is int…
quant-ph2008
A scheme for amplification and discrimination of photons
A. R. Usha Devi, R. Prabhu, A. K. Rajagopal
A scheme for exploring photon number amplification and discrimination is presented based on the interaction of a large number of two-level atoms with a single mode radiation field.…