5 papers
Efficiency fluctuations in quantum heat engines with non-quasi-static adiabatic strokes
Bikram Keshari Behera, Shyamal Biswas
We have presented an analytical and numerical study of efficiency fluctuations in quantum Carnot and Otto engines with pistons operating under non-quasi-static adiabatic expansion…
Opto-criticality in Drude metals near the plasma frequency
Bikram Keshari Behera, Rhitabrata Bhattacharyya, Shyamal Biswas
Within a simple unified framework of classical electrodynamics that incorporates background bound charges and currents, we have analytically determined the attenuation constant, ph…
Gauss' law for arbitrarily moving Gaussian surfaces: A revisit
Shyamal Biswas
We have re-examined the integral form of Gauss' law for arbitrarily moving charges inside and outside an arbitrarily expanding (or contracting) and deforming Gaussian surface. We h…
Scaling theory for the collapse of a trapped Bose gas in a synthetic magnetic field: a critical study at the condensation point
Bikram Keshari Behera, Shyamal Biswas
We have analytically explored both the zero temperature and the finite temperature scaling theory for the collapse of an attractively interacting 3-D harmonically trapped Bose gas…
Refractive index for the mechanical refraction of a relativistic particle
Bikram Keshari Behera, Surendra Kumar Gour, Shyamal Biswas
We have analytically determined the refractive index for the mechanical refraction of a relativistic particle for its all possible speeds. We have critically analysed the importanc…