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
15 papers · 2 filters
A factorization property of positive maps on -algebras
B. V. Rajarma Bhat, Hiroyuki Osaka
The purpose of this short note is to clarify and present a general version of an interesting observation by Piani and Mora (Physic. Rev. A 75, 012305 (2007)), linking complete posi…
Independence of work and entropy for equal energetic finite quantum systems: Passive state energy as an entanglement quantifier
Mir Alimuddin, Tamal Guha, Preeti Parashar
Although entropy is a necessary and sufficient quantity to characterize the order of work content for equal energetic (EE) states in the asymptotic limit, for the finite quantum sy…
Non-commutative space engine: a boost to thermodynamic processes
Tanmoy Pandit, Pritam Chattopadhyay, Goutam Paul
We introduce quantum heat engines that perform quantum Otto cycle and the quantum Stirling cycle by using a coupled pair of harmonic oscillator as its working substance. In the qua…
Non-Commutative space: boon or bane for quantum engines and refrigerators
Pritam Chattopadhyay
Various quantum systems are considered as the working substance for the analysis of quantum heat cycles and quantum refrigerators. The ongoing technological challenge is how effici…
Some no-go results in Quantum Thermodynamics
Tamal Guha, Mir Alimuddin, Preeti Parashar
Thermodynamics is one of the fascinating branches of traditional physics to certify the occurrence of many natural processes. On the other hand, quantum theory is the most acceptab…
Confluent Second-Order Supersymmetric Quantum Mechanics and Spectral Design
David J. Fernandez C, Barnana Roy
The confluent second-order supersymmetric quantum mechanics, in which the factorization energies tend to a common value, is used to generate Hamiltonians with known spectra departi…
Nonlocality Without Entanglement: Quantum Theory and Beyond
Some Sankar Bhattacharya, Sutapa Saha, Tamal Guha +1
Quantum nonlocality without entanglement (Q-NWE) encapsulates nonlocal behavior of multipartite product states as they may entail global operation for optimal decoding of the class…
Relativistic quantum heat engine from uncertainty relation standpoint
Pritam Chattopadhyay, Goutam Paul
Established heat engines in quantum regime can be modeled with various quantum systems as working substances. For example, in the non-relativistic case, we can model the heat engin…
Bound on efficiency of heat engine from uncertainty relation viewpoint
Pritam Chattopadhyay, Ayan Mitra, Goutam Paul +1
Quantum cycles in established heat engines can be modeled with various quantum systems as working substances. For example, a heat engine can be modeled with an infinite potential w…
Geometric Phases for Classical and Quantum Dynamics: Hannay angle and Berry Phase for Loops on a Torus
Subir Ghosh
In this paper we have considered closed trajectories of a particle on a two-torus where the loops are noncontractible (poloidal and toroidal loops and knots embedded on a regular t…
The principle of information symmetry constrains the state-space in any physical theory
Manik Banik, Sutapa Saha, Tamal Guha +4
Symmetry shares an entwined history with the structure of physical theory. We propose a consequence of symmetry towards the axiomatic derivation of Hilbert space quantum theory. We…
Dimensionality Distinguishers
Nayana Das, Goutam Paul, Arpita Maitra
The celebrated Clauser, Horne, Shimony and Holt (CHSH) game model helps to perform the security analysis of many two-player quantum protocols. This game specifies two Boolean funct…
Allowed and Forbidden Bipartite Correlations from Thermal States
Tamal Guha, Mir Alimuddin, Preeti Parashar
The strong connection between correlations and quantum thermodynamics raises a natural question about the preparation of correlated quantum states from two copies of a thermal qubi…
Bound on Ergotropic Gap for Bipartite Separable States
Mir Alimuddin, Tamal Guha, Preeti Parashar
Presence of correlations among the constituent quantum systems has a great relevance in thermodynamics. Significant efforts have been devoted to investigate the role of correlation…
Improved and Formal Proposal for Device Independent Quantum Private Query
Jyotirmoy Basak, Kaushik Chakraborty, Arpita Maitra +1
In this paper, we propose a novel Quantum Private Query (QPQ) scheme with full Device-Independent certification. To the best of our knowledge, this is the first time we provide suc…