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
Diagnosis of single faults in quantum circuits
Debajyoti Bera, Subhamoy Maitra, Sparsa Roychowdhury +1
Detecting and isolating faults is crucial for synthesis of quantum circuits. Under the single fault assumption that is now routinely accepted in circuit fault analysis, we show tha…
An analysis of the zero energy states in graphene
P. Ghosh, P. Roy
Using the concept of complex non PT symmetric potential we study creation of zero energy states in graphene by a scalar potential. The admissible range of the potential parameter v…
Trace-distance measure of coherence
Swapan Rana, Preeti Parashar, Maciej Lewenstein
We show that trace distance measure of coherence is a strong monotone for all qubit and, so called, states. An expression for the trace distance coherence for all pure states a…
Relativistic electron vortex beams in a laser field
Pratul Bandyopadhyay, Banasri Basu, Debashree Chowdhury
The orbital angular momentum Hall effect and spin Hall effect of electron vortex beams (EVB) have been studied for the EVBs interacting with laser field. In the scenario of paraxia…
Reciprocal ontological models show indeterminism of the order of quantum theory
Somshubhro Bandyopadhyay, Manik Banik, Some Sankar Bhattacharya +4
The question whether indeterminism in quantum measurement outcomes is fundamental or is there a possibility of constructing a finer theory underlying quantum mechanics that allows…
mKdV equation approach to zero energy states of graphene
C. -L. Ho, P. Roy
We utilize the relation between soliton solutions of the mKdV and the combined mKdV-KdV equation and the Dirac equation to construct electrostatic fields which yield exact zero ene…
Exchangeable, stationary and entangled chains of Gaussian states
K. R. Parthasarathy, Ritabrata Sengupta
We explore conditions on the covariance matrices of a consistent chain of mean zero finite mode Gaussian states in order that the chain may be exchangeable or stationary. For an ex…
Limited preparation contextuality in quantum theory and its relation to the Cirel'son bound
Manik Banik, Some Sankar Bhattacharya, Amit Mukherjee +3
Kochen-Specker (KS) theorem lies at the heart of the foundations of quantum mechanics. It establishes impossibility of explaining predictions of quantum theory by any noncontextual…
Measurement incompatibility and Channel Steering
Manik Banik, Subhadipa Das, A. S. Majumdar
Incompatible measurements in quantum theory always lead to Einstein-Podolsky-Rosen (EPR)-Schrödinger steering. Channel steering which is a generalized notion of EPR-Schrödinger ste…
Relaxations of separability in multipartite systems: Semidefinite programs, witnesses and volumes
Cécilia Lancien, Otfried Gühne, Ritabrata Sengupta +1
While entanglement is believed to be an important ingredient in understanding quantum many-body physics, the complexity of its characterization scales very unfavorably with the siz…
Optimal quantum violation of Clauser-Horne-Shimony-Holt like steering inequality
Arup Roy, Some Sankar Bhattacharya, Amit Mukherjee +1
We study a recently proposed Einstein-Podolsky-Rosen steering inequality [arXiv- 1412.8178 (2014)]. Analogous to Clauser-Horne-Shimony-Holt (CHSH) inequality for Bell nonlocality,…
Quantum Path predictability for an electronic Mach-Zehnder interferometer in presence of environment induced Decoherence and Quantum Erasing process
Samyadeb Bhattacharya, Sisir Roy
In this paper, we have estimated the temperature dependent path predictability for an electronic Mach-Zehnder interferometer. The increment of path predictability can directly be a…
Measurement incompatibility and Schrödinger-EPR steering in a class of probabilistic theories
Manik Banik
Steering is one of the most counter intuitive non classical features of bipartite quantum system, first noticed by Schrödinger at the early days of quantum theory. On the other han…
A Resilient Quantum Secret Sharing Scheme
Arpita Maitra, Goutam Paul
A resilient secret sharing scheme is supposed to generate the secret correctly even after some shares are damaged. In this paper, we show how quantum error correcting codes can be…