23 citations · 122 across the 16 of their papers we have counts for
16 papers
An atomic clockwork using phase dependent energy shifts
D. De Munshi, B. Dutta-Roy, M. Mukherjee
A frequency stabilized laser referenced to an unperturbed atomic two level system acts as the most accurate clock with femtosecond clock ticks. For any meaningful use, a Femtosecon…
Berry Phase for Systems with Angular Momenta in Electric and Magnetic Fields
K. J. B. Ghosh, D. De Munshi, B. Dutta-Roy
The Berry phase for a variety of systems comprising of two angular momenta is discussed. These include the electron and proton in the ground state of the hydrogen atom (taking into…
The Quadratic Spin Squeezing Operators
P. K. Pathak, R. N. Deb, N. Nayak +1
We discuss generic spin squeezing operators (quadratic in angular momentum operators) capable of squeezing out quantum mechanical noise from a system of two-level atoms (spins) in…
Commensurate anisotropic oscillator, SU(2) coherent states and the classical limit
M. Sanjay Kumar, B. Dutta-Roy
We demonstrate a formally exact quantum-classical correspondence between the stationary coherent states associated with the commensurate anisotropic two-dimensional harmonic oscill…
Understanding the Fano Resonance : through Toy Models
Swarnali Bandopadhyay, Binayak Dutta-Roy, H. S. Mani
The Fano Resonance, involving the mixing between a quasi-bound `discrete' state of an inelastic channel lying in the continuum of scattering states belonging to the elastic channel…
Unstable particles in matter at a finite temperature: the rho and omega mesons
Jan-e Alam, Sourav Sarkar, Pradip Roy +2
Unstable particles (such as the vector mesons) have an important role to play in low mass dilepton production resulting from heavy ion collisions and this has been a subject of sev…