activity
20132026
most citedGenuinely Nonlocal Product Bases: Classification and Entanglement Assisted Discrimination

71 citations · 385 across the 38 of their papers we have counts for

collaborators

39 papers

quant-ph2026

Emergence and Recovery of (logical) Kochen-Specker Contextuality via Hamilton Extension

Jayashree Karmakar, Biswadeep Chatterjee, Rafiuddin Gazi +5

Logical Kochen-Specker (KS) contextuality is widely regarded as an intrinsic property of specially constructed measurement configurations. We show instead that it can emerge from K…

quant-ph2026

Conclusive Identification Via Noisy Classical Channel: Superactivation and Quantum Advantage

Anushko Chattopadhyay, Ambuj, Rakesh Das +4

We introduce conclusive identification task for classical channels: a receiver identifies transmitted inputs without error when possible, and responds inconclusively when outputs a…

quant-ph2022★ 6 cited

Locally unidentifiable subset of quantum states and its resourcefulness in secret password distribution

Pratik Ghosal, Arkaprabha Ghosal, Subhendu B. Ghosh +1

We introduce a hitherto unexplored form of quantum nonlocality, termed local subset unidentifiability, that arises from the limitation of spatially separated parties to perfectly i…

quant-ph2022★ 7 cited

Genuine Activation of Quantum Nonlocality: Stronger Than Local Indistinguishability

Tathagata Gupta, Subhendu B. Ghosh, Ardra A +5

The structure of quantum theory assures the discrimination of any possible orthogonal set of states. However, the scenario becomes highly nontrivial in the limited measurement sett…

quant-ph2022★ 13 cited

Activating Strongest Possible Nonlocality from Local Sets: An Elimination Paradigm

Subhendu B. Ghosh, Tathagata Gupta, Ardra A. V. +4

Apart from the Bell nonlocality, which deals with the correlations generated from the local input-output statistics, quantum theory exhibits another kind of nonlocality that involv…

quant-ph2020★ 9 cited

Operational Characterization of Multipartite Nonlocal Correlations

Sagnik Dutta, Amit Mukherjee, Manik Banik

Nonlocality, one of the most puzzling features of multipartite quantum correlation, has been identified as a useful resource for device-independent quantum information processing.…