260 citations · 1.8k across the 99 of their papers we have counts for
5 papers · 2 filters
On local indistinguishability of orthogonal pure states by using a bound on distillable entanglement
Sibasish Ghosh, Guruprasad Kar, Anirban Roy +3
We show that the four states a|00>+b|11>, b^*|00>-a^*|11>, c|01>+d|10> and d^*|01>-c^*|10> cannot be discriminated with certainty if only local operations and classical communicati…
Entanglement teleportation via Bell Mixture
Sibasish Ghosh, Guruprasad Kar, Anirban Roy +2
We investigate the teleportation of the bipartite entangled states through two equally noisy quantum channels, namely mixture of Bell states. There is a particular mixed state chan…
Distinguishability of the Bell states
Sibasish Ghosh, Guruprasad Kar, Anirban Roy +2
More than two multipartite orthogonal states cannot always be discriminated (with certainty) if only local operations and classical communication (LOCC) are allowed. Using an exist…
Mixedness in Bell-violation vs. Entanglement of Formation
Sibasish Ghosh, Guruprasad Kar, Aditi Sen De +1
Recently Munro, Nemoto and White (The Bell Inequality: A measure of Entanglement?, quant-ph/0102119) tried to indicate that the reason behind a state rho having higher amount of en…
Realization of Optimal Disentanglement by Teleportation via Separable Channel
Sibasish Ghosh, Guruprasad Kar, Anirban Roy +2
We discuss here the best disentanglement processes of states of two two-level systems which belong to (i) the universal set, (ii) the set in which the states of one party lie on a…