35 citations · 96 across the 11 of their papers we have counts for
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Single-photon transfer using levitated cavityless optomechanics
Pardeep Kumar, M. Bhattacharya
We theoretically explore a quantum memory using a single nanoparticle levitated in an optical dipole trap and subjected to feedback cooling. This protocol is realized by storing an…
Population trapping in the excited states using vacuum-induced coherence and adiabatic process
Babu Lal Kumawat, Pardeep Kumar, Shubhrangshu Dasgupta
We theoretically investigate how population can be trapped in the excited doublet in presence of vacuum-induced coherence (VIC). We employ delayed pulses to transfer population fro…
Magnetometry via spin-mechanical coupling in levitated optomechanics
Pardeep Kumar, M. Bhattacharya
We analyze magnetometry using an optically levitated nanodiamond. We consider a configuration where a magnetic field gradient couples the mechanical oscillation of the diamond with…
Light deflection by light: Effect of incidence angle and inhomogeneity
Pardeep Kumar, Shubhrangshu Dasgupta
We study the angular deflection of the circular polarized components of a linearly polarized probe field in a weakly birefringent atomic system in tripod configuration. A spatially…
Optical switching and bistability in a four-level atomic systems
Pardeep Kumar, Shubhrangshu Dasgupta
We explore the coherent control of nonlinear absorption of intense laser fields in four-level atomic systems. For instance, in a four-level ladder system, a coupling field creates…
Probing vacuum-induced coherence via magneto-optical rotation in molecular systems
Pardeep Kumar, Bimalendu Deb, Shubhrangshu Dasgupta
We investigate theoretically the effects of vacuum-induced coherence (VIC) on magneto-optical rotation (MOR). We carry out a model study to show that VIC in the presence of a contr…