6 papers
Squeezing enhanced homodyne weak force sensing in cavity optomechanics
Madan Mohan Mahana, Sanket Das, Tarak Nath Dey
Cavity optomechanical systems have emerged as a promising platform for quantum sensing. Quantum mechanics imposes a standard quantum limit (SQL) on the force-sensitivity for the st…
Supersolid Rotation in an Annular Bose-Einstein Condensate coupled to a Ring Cavity
Gunjan Yadav, Nilamoni Daloi, Pardeep Kumar +2
We theoretically investigate an annularly confined Bose-Einstein Condensate (BEC) coupled to a four-mirror ring cavity supporting traveling-wave optical modes. Under symmetric driv…
Coherent Control of Population and Quantum Coherence in Superconducting Circuits
Madan Mohan Mahana, Gunjan Yadav, Tarak Nath Dey
Quantum mechanics, with its counterintuitive principles and probabilistic nature, has long been confined to the microscopic realm of atoms and photons. Yet, recent breakthroughs ha…
A comparative study of focusing with scalar and vector beams in an active Raman gain system
Partha Das, Tarak Nath Dey
We investigate the focusing characteristics of scalar and vector beams within an atomic medium. An active-Raman-gain configuration is employed to achieve significant Kerr nonlinear…
Unconventional photon blockade in cavity QED with parametric amplification
Madan Mohan Mahana, Sanket Das, Tarak Nath Dey
We theoretically investigate the quantum-interference-induced photon blockade effect in a single two-level atom-cavity quantum electrodynamics (QED) system with degenerate parametr…
Controllable Single Photon Scattering via Coupling of Driven System with Topological Waveguide
Gunjan Yadav, Madan Mohan Mahana, Tarak Nath Dey
We investigate the coherent single photon scattering process in a topological waveguide coupled with a driven system. We derive an analytical expression for transmittance by u…