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of 70
pro vyhledávání: '"Kumar, Parvendra"'
Autor:
Mishra, Divya, Kumar, Parvendra
We theoretically investigated an array of coupled optomechanical cavities driven by a phase-modulated laser. We show that phase modulation enables the control of band structure and switching of the relative weights of photons and phonons in hybrid ei
Externí odkaz:
http://arxiv.org/abs/2409.18447
Semiconductor quantum dots are among the best sources of on-demand entangled photon pairs. The degree of entanglement, however, is generally limited by the fine structure splitting of exciton states. In this paper, we theoretically investigate the ge
Externí odkaz:
http://arxiv.org/abs/2312.12054
Autor:
Agrawal, Atul Kumar, Kumari, Anshu, Kumar, Brajesh, Kumar, Parvendra, Jena, Lalit Kumar, Asthana, Saket, Singh, Rakesh Kumar, Jaiswal, Shivendra Kumar
Publikováno v:
In Physica B: Condensed Matter 1 January 2025 696
Coherence has been remaining a key resource for numerous applications of quantum physics ranging from quantum metrology to quantum information. Here, we report a theoretical work on how maximally created coherence results in the squeezing of cavity f
Externí odkaz:
http://arxiv.org/abs/2107.03849
Publikováno v:
Phys. Rev. A 102, 043715 (2020)
We theoretically demonstrate the enhanced and dephasing immune squeezing in the resonance fluorescence of a single quantum dot (QD) confined to a pillar-microcavity and driven by a continuous wave laser. We employ a formalism based on Polaron master
Externí odkaz:
http://arxiv.org/abs/2005.03820
Autor:
Kumar, Parvendra1 (AUTHOR), Jaiswal, Shivendra Kumar1 (AUTHOR) skj@nitp.ac.in
Publikováno v:
Applied Physics A: Materials Science & Processing. Oct2023, Vol. 129 Issue 10, p1-15. 15p. 1 Black and White Photograph, 2 Diagrams, 4 Charts, 8 Graphs.
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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 between the ground state |1> and the excited state |2> could be achieved u
Externí odkaz:
http://arxiv.org/abs/1310.8142
Autor:
Kumar, Parvendra, Sarma, Amarendra K.
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 demonstrated that the almost complete population may be transferred to
Externí odkaz:
http://arxiv.org/abs/1303.0206