108 citations · 326 across the 23 of their papers we have counts for
23 papers
Classifying locally distinguishable sets: No activation across bipartitions
Atanu Bhunia, Saronath Halder, Ritabrata Sengupta
A set of orthogonal quantum states is said to be locally indistinguishable if they cannot be perfectly distinguished by local operations and classical communication (LOCC). Otherwi…
Duality between quantum channels and super-channels is basis-dependent
Sohail, Sahil, Ritabrata Sengupta +1
The complete positivity vs positivity correspondence in the Choi-Jamiołkowski-Kraus-Sudarshan quantum channel-state isomorphism depends on the choice of basis. Instead of the "cano…
Conditions for local transformations between sets of quantum states
Somshubhro Bandyopadhyay, Saronath Halder, Ritabrata Sengupta
We study the problem of transforming a set of pure bipartite states into another using deterministic LOCC (local operations and classical communication). Necessary conditions for t…
Robust entanglement detection in arbitrary two-mode Gaussian state: a Stokes-like operator-based approach
Arijit Dutta, Sibasish Ghosh, Jaewan Kim +1
Detection of entanglement in quantum states is one of the most important problems in quantum information processing. However, it is one of the most challenging tasks to find a univ…
Optimal teleportation fidelity and its deviation in noisy scenarios
Pratapaditya Bej, Saronath Halder, Ritabrata Sengupta
In this work, we study the combined effects of noisy resource state and noisy classical communication on teleportation fidelity and its deviation. Basically, we consider a teleport…
A Szegő type theorem and distribution of symplectic eigenvalues
Rajendra Bhatia, Tanvi Jain, Ritabrata Sengupta
We study the properties of stationary G-chains in terms of their generating functions. In particular, we prove an analogue of the Szegő limit theorem for symplectic eigenvalues, de…