17 citations · 66 across the 6 of their papers we have counts for
6 papers
Local Unitary Invariants for N-qubit Pure State
S. Shelly Sharma, N. K. Sharma
We obtain local unitary invariant polynomials for N qubit quantum state from first principles. A basic unit of entanglement, referred to as negativity font, is defined as a two by…
Quantum coherences, K-way negativities and multipartite entanglement
S. Shelly Sharma, N. K. Sharma
A characterization of N-partite states, based on K-way (K = 2 to N) negativities, is proposed. The K-way partial transpose with respect to a subsystem is defined so as to shift the…
Schrödinger cat state of trapped ions in harmonic and anharmonic oscillator traps
S. Shelly Sharma, N. K. Sharma
We examine the time evolution of a two level ion interacting with a light field in harmonic oscillator trap and in a trap with anharmonicities. The anharmonicities of the trap are…
Quantum Group SU_{q}(2) and Pairing in Nuclei
S. Shelly Sharma, N. K. Sharma
A scheme for treating the pairing of nucleons in terms of generators of Quantum Group SU_{q}(2) is presented. The possible applications to nucleon pairs in a single orbit, multishe…
The BCS theory of q-deformed nucleon pairs - qBCS
S. Shelly Sharma, N. K. Sharma
We construct a coherent state of q-deformed zero coupled nucleon pairs distributed in several single-particle orbits. Using a variational approach, the set of equations of qBCS the…
q-deformed pairing-vibrations
S. Shelly Sharma, N. K. Sharma
Boson creation operators constructed from linear combinations of q- deformed zero coupled nucleon pair operators acting on the nucleus (A,0), are used to derive pp-RPA equations. T…