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
14 papers · 2 filters
Probing Uncertainty Relations in Non-Commutative Space
Pritam Chattopadhyay, Ayan Mitra, Goutam Paul
In this paper, we compute uncertainty relations for non-commutative space and obtain a better lower bound than the standard one obtained from Heisenberg's uncertainty relation. We…
A new error-modeling of Hardy's paradox for superconducting qubits and its experimental verification
Soumya Das, Goutam Paul
Hardy's paradox (equivalently, Hardy's non-locality or Hardy's test) [\href{https://link.aps.org/doi/10.1103/PhysRevLett.68.2981}{L. Hardy, Phys. Rev. Lett. \textbf{68}, 2981 (1992…
Bound states of the two-dimensional Dirac equation for an energy-dependent hyperbolic Scarf potential
A. Schulze-Halberg, P. Roy
We study the two-dimensional massless Dirac equation for a potential that is allowed to depend on the energy and on one of the spatial variables. After determining a modified ortho…
Quantum Signaling to the Past Using P-CTCS
Soumik Ghosh, Arnab Adhikary, Goutam Paul
Closed Timelike Curves (CTCs) are intriguing relativistic objects that allow for time travel to the past and can be used as computational resources. In Deutschian Closed Timelike C…
Revisiting Integer Factorization using Closed Timelike Curves
Soumik Ghosh, Arnab Adhikary, Goutam Paul
Closed Timelike Curves are relativistically valid objects allowing time travel to the past. Treating them as computational objects opens the door to a wide range of results which c…
Characterization of the quantumness of unsteerable tripartite correlations
Debarshi Das, C. Jebaratnam, Bihalan Bhattacharya +3
Quantumness for a bipartite unsteerable quantum correlation is operationally characterized by the notion of super-unsteerability. Super-unsteerability refers to the requirement of…
Operational characterization of quantumness of unsteerable bipartite states
Debarshi Das, Bihalan Bhattacharya, Chandan Datta +4
Recently, the quantumness of local correlations arising from separable states in the context of a Bell scenario has been studied and linked with superlocality [Phys. Rev. A {\bf 95…
Strong Quantum Solutions in Conflicting Interest Bayesian Games
Ashutosh Rai, Goutam Paul
Quantum entanglement has been recently demonstrated as a useful resource in conflicting interest games of incomplete information between two players, Alice and Bob [Pappa et al., P…
From quantum stochastic differential equations to Gisin-Percival state diffusion
K. R. Parthasarathy, A. R. Usha Devi
Starting from the quantum stochastic differential equations of Hudson and Parthasarathy (Comm. Math. Phys. 93, 301 (1984)) and exploiting the Wiener-Ito-Segal isomorphism between t…
Tripartite entanglement detection through tripartite quantum steering in one-sided and two-sided device-independent scenarios
C. Jebaratnam, Debarshi Das, Arup Roy +5
In the present work, we study tripartite quantum steering of quantum correlations arising from two local dichotomic measurements on each side in the two types of partially device-i…
Particle on a Torus Knot: Anholonomy and Hannay Angle
Subir Ghosh
The phenomenon of rotation of a vector under parallel transport along a closed path is known as anholonomy. In this paper we have studied the anholonomy for noncontractible loops -…
Two-Qubit Pure Entanglement as Optimal Social Welfare Resource in Bayesian Game
Manik Banik, Some Sankar Bhattacharya, Nirman Ganguly +4
Entanglement is of paramount importance in quantum information theory. Its supremacy over classical correlations has been demonstrated in numerous information theoretic protocols.…
Local marginals ameliorate device independent witnessing of genuine entanglement
Some Sankar Bhattacharya, Biswajit Paul, Arup Roy +3
We consider the problem of determining the presence of genuine multipartite entanglement through the violation of Mermin's Bell-type inequality (MI). Though the violation of MI can…
Device Independent Quantum Private Query
Arpita Maitra, Goutam Paul, Sarbani Roy
In Quantum Private Query (QPQ), a client obtains values corresponding to his query only and nothing else from the server and the server does not get any information about the queri…