157 citations · 1.1k across the 83 of their papers we have counts for
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Parity-time-symmetric closed form optical quadrimer waveguides
Samit Kumar Gupta, Amarendra K. Sarma
A closed form PT symmetric quadrimer optical waveguide structure, reminiscent of the four-state quantum system found in quantum optics, is studied. The beam dynamics of the structu…
Simultaneous control of optical dipole force and coherence creation by super-Gaussian femtosecond pulses in lambda-like atomic systems
Pawan Kumar, Parvendra Kumar, Amarendra K. Sarma
We report a study on the optical dipole force on a beam of neutral three-level like atomic system induced by a femtosecond super-Gaussian pulse. We show that maximum coherence betw…
Continuous and discrete Schrodinger systems with PT-symmetric nonlinearities
Amarendra K. Sarma, Mohammad-Ali Miri, Ziad H. Musslimani +1
We investigate the dynamical behavior of continuous and discrete Schrodinger systems exhibiting parity-time (PT) invariant nonlinearities. We show that such equations behave in a f…
Ultrafast and selective coherent population transfer in four-level atoms by a single frequency chirped few-cycle pulse
Parvendra Kumar, Amarendra K. Sarma
We report and propose a simple scheme to achieve the ultrafast and selective population transfer in four-level atoms by utilizing a single frequency chirped few-cycle pulse. It is…