570 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Tata Institute of Fundamental ResearchIN296 papers
- Charles UniversityCZ292 papers
- Hanyang UniversityKR288 papers
- Indian Institute of Technology MadrasIN288 papers
- National Taiwan UniversityTW286 papers
- Yonsei UniversityKR284 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di TorinoIT279 papers
- Sungkyunkwan UniversityKR279 papers
- Deutsches Elektronen-Synchrotron DESYDE277 papers
- Kyungpook National UniversityKR277 papers
- National Central UniversityTW273 papers
- Wayne State UniversityUS272 papers
13 papers · 2 filters
Quasi-harmonic spectra from branched Hamiltonians
Aritra Ghosh, Bijan Bagchi, A. Ghose-Choudhury +2
We revisit the canonical quantization to assess the spectrum of the modified Emden equation , which is an isochronous case of t…
Twin Hamiltonians, three types of the Dyson maps, and the probabilistic interpretation problem in quasi-Hermitian quantum mechanics
Aritra Ghosh, Adam Miranowicz, Miloslav Znojil
In the framework of the so-called quasi-Hermitian quantum mechanics of stationary unitary systems, bound states are usually constructed as eigenstates of a Hamiltoni…
Noninvertible Kramers-Wannier duality symmetries for the discrete-time quantum Ising chain
Akash Sinha, Pramod Padmanabhan, Vladimir Korepin
Integrable trotterization} provides a method to evolve a continuous time integrable many-body system in discrete time, such that it retains its conserved quantities. Here we explic…
Single-shot antidistinguishability of unitary operations
Satyaki Manna, Anandamay Das Bhowmik
The notion of antidistinguishability captures the possibility of ruling out certain alternatives in a quantum experiment without identifying the actual outcome. Although extensivel…
Global versus Local Discrimination of Locally Implementable Multipartite Unitaries
Satyaki Manna, Sneha Suresh, Anandamay Das Bhowmik +1
We study single-shot distinguishability of locally implementable multipartite unitaries under Local Operations and Classical Communication (LOCC) and global operations. As unitary…
Communication scenario enables robust self-testing of n-party Greenberger-Horne-Zeilinger basis measurements
Barnik Bhaumik, Sagnik Ray, Debashis Saha
Entangled basis measurements play a crucial role in distributing quantum entanglement between parties across a quantum network. In this work, we adopt a semi-device-independent app…
Cavity Optomechanical Quantum Memory for Twisted Photons Using a Ring BEC
Nilamoni Daloi, Rahul Gupta, Aritra Ghosh +3
We theoretically propose a photonic orbital angular momentum (OAM) quantum memory platform based on an atomic Bose-Einstein condensate confined in a ring trap and placed inside a F…
Quantum phase transitions and entanglement entropy in a non-Hermitian Jaynes-Cummings model
Gargi Das, Aritra Ghosh, Bhabani Prasad Mandal
In this paper, we describe some interesting properties of a non-Hermitian Jaynes-Cummings model. For this particular model, it is known that the Hilbert space can be described by i…
Limits of Classical correlations and Quantum advantages under (Anti-)Distinguishability constraints in Multipartite Communication
Ankush Pandit, Soumyabrata Hazra, Satyaki Manna +2
We consider communication scenarios with multiple senders and a single receiver. Focusing on communication tasks where the distinguishability or antidistinguishability of the sende…
Limitation of maximally entangled probes for single-shot distinguishability of unitaries
Satyaki Manna, Anandamay Das Bhowmik, Debashis Saha
There have been many instances where the maximally entangled state as a probe acts better than the product and the non-maximally entangled states in the task of distinguishing quan…
Dirac-isotonic oscillators in (1 + 1) and (2 + 1) dimensions
Aritra Ghosh, Bhabani Prasad Mandal
We discuss the Dirac oscillator in and dimensions and generalize it in the spirit of the isotonic oscillator using supersymmetric quantum mechanics. In dime…
Isochronous oscillator with a singular position-dependent mass and its quantization
Aritra Ghosh, Bhabani Prasad Mandal, Bijan Bagchi
In this paper, we present an analysis of the equation , where and is a real-valued variable. We first discuss th…
Supersinglets can be self-tested with perfect quantum strategies
Debashis Saha, Adán Cabello
Supersinglets are states of spin-zero of particles of levels. They are invariant under unitary transformations of the form and have applications in me…