260 citations · 566 across the 20 of their papers we have counts for
4 papers · 1 filter
Optimal Cloning and No Signaling
Sibasish Ghosh, Guruprasad Kar, Anirban Roy
It is shown that no signaling constraint generates the whole class of 1 2 optimal quantum cloning machines of single qubits.
Optimal Universal Disentangling Machine for Two Qubit Quantum States
Sibasish Ghosh, Somshubhro Bandyopadhyay, Anirban Roy +2
We derive the optimal curve satisfied by the reduction factors, in the case of universal disentangling machine which uses only local operations. Impossibility of constructing a bet…
Disentanglement of pure bipartite quantum states by local cloning
Somshubhro Bandyopadhyay, Guruprasad Kar, Anirban Roy
We discuss disentanglement of pure bipartite quantum states within the framework of the schemes developed for entanglement splitting and broadcasting of entanglement.
Classification of Maximally Entangled States of Spin-1/2 Particles
S. Ghosh, G. Kar, A. Roy
This paper has been withdrawn temporarily.