43 citations · 257 across the 27 of their papers we have counts for
3 papers · 1 filter
Adiabatic freezing of entanglement with insertion of defects in a one-dimensional Hubbard model
Sreetama Das, Sudipto Singha Roy, Himadri Shekhar Dhar +3
We report on ground state phases of a doped one-dimensional Hubbard model, which for large onsite interactions is governed by the - Hamiltonian, where the extant entanglement…
Wave-particle duality employing quantum coherence in superposition with non-orthogonal pointers
Sreetama Das, Chiranjib Mukhopadhyay, Sudipto Singha Roy +3
We propose the notion of quantum coherence for superpositions over states which are not necessarily mutually orthogonal. This anticipatedly leads to a resource theory of non-orthog…
A Study of the Time Evolution of Brans-Dicke Parameter and its Role in Cosmic Expansion
Sudipto Roy, Soumyadip Chowdhury
The dependence of Brans-Dicke (BD) parameter upon the scalar field, for different cosmological era of the expanding universe, has been explored. The time dependence of the scalar f…