Search Results for author: Arup Roy

Found 2 papers, 0 papers with code

Information-disturbance trade-off in generalized entanglement swapping

no code implementations29 Oct 2020 Pratapaditya Bej, Arkaprabha Ghosal, Debarshi Das, Arup Roy, Somshubhro Bandyopadhyay

We study information-disturbance trade-off in generalized entanglement swapping protocols wherein starting from Bell pairs $\left(1, 2\right)$ and $\left(3, 4\right)$, one performs an arbitrary joint measurement on $\left(2, 3\right)$, so that $\left(1, 4\right)$ now becomes correlated.

Quantum Physics

Genuine Einstein-Podolsky-Rosen steering of three-qubit states by multiple sequential observers

no code implementations7 Jul 2020 Shashank Gupta, Ananda G. Maity, Debarshi Das, Arup Roy, A. S. Majumdar

We investigate the possibility of multiple use of a single copy of three-qubit states for genuine tripartite Einstein-Podolsky-Rosen (EPR) steering.

Quantum Physics

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