1.9k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- S.N. Bose National Centre for Basic SciencesIN60 papers
- Saha Institute of Nuclear PhysicsIN55 papers
- Indian Statistical Institute, Bangalore CentreIN51 papers
- Jadavpur UniversityIN41 papers
- University of CalcuttaIN39 papers
- Indian Institute of Science BangaloreIN35 papers
- Institute of Mathematical SciencesIN34 papers
- Indian Institute of Technology MadrasIN28 papers
- Bose InstituteIN27 papers
- Centre National de la Recherche ScientifiqueFR26 papers
- Indian Statistical Institute, Delhi CentreIN20 papers
- Tata Institute of Fundamental ResearchIN20 papers
9 papers · 2 filters
Logarithmic coherence: Operational interpretation of -norm coherence
Swapan Rana, Preeti Parashar, Andreas Winter +1
We show that the distillable coherence---which is equal to the relative entropy of coherence---is, up to a constant factor, always bounded by the -norm measure of coherence…
Absolute Non-Violation of a Three-Setting Steering Inequality by Two-Qubit States
Some Sankar Bhattacharya, Amit Mukherjee, Arup Roy +5
Steerability is a characteristic nonlocal trait of quantum states lying in between entanglement and Bell nonlocality. A given quantum state is considered to be steerable if it viol…
Bell-CHSH Violation Under Global Unitary Operations: Necessary and Sufficient conditions
Nirman Ganguly, Amit Mukherjee, Arup Roy +3
The relation between Bell-CHSH violation and factorization of Hilbert space is considered here. That is, a state which is local in the sense of the Bell-CHSH inequality under a cer…
Revisiting optimal eavesdropping in quantum cryptography: Optimal interaction is unique up to rotation of the underlying basis
Atanu Acharyya, Goutam Paul
A general framework of optimal eavesdropping on BB84 protocol was provided by Fuchs et al. [Phys. Rev. A, 1997]. An upper bound on mutual information was derived, which could be ac…
Conditional steering under von-Neumann scenario
Kaushiki Mukherjee, Biswajit Paul, Sumana Karmakar +4
In [\href{http://www.sciencedirect.com/science/article/pii/037596019290711T}{Phys. Lett. A {\bf 166}, 293 (1992)}] Popescu characterized nonlocality of pure -partite entangled s…
Characterization of Nonlocal Resources Under Global Unitary Action
Arup Roy, Some Sankar Bhattacharya, Amit Mukherjee +1
The task of device independent secure key distribution requires preparation and subsequently distribution of nonlocal resources. For secured practical implementation, one needs to…
The presence of quantum correlations result in non-vanishing ergotropic gap
Amit Mukherjee, Arup Roy, Some Sankar Bhattacharya +1
The paradigm of extracting work from isolated quantum system through a cyclic Hamiltonian process is a topic of immense research interest. The optimal work extracted under such pro…
On the equivalence of separability and extendability of quantum states
B. V. Rajarama Bhat, K. R. Parthasarathy, Ritabrata Sengupta
Motivated by the notions of -extendability and complete extendability of the state of a finite level quantum system as described by Doherty et al (Phys. Rev. A, 69:022308), we i…
Nonlocal correlations: Fair and Unfair Strategies in Bayesian Game
Arup Roy, Amit Mukherjee, Tamal Guha +3
Interesting connection has been established between two apparently unrelated concepts, namely, quantum nonlocality and Bayesian game theory. It has been shown that nonlocal correla…