Local inaccessibility of random classical information: Conditional nonlocality demands entanglement

SB Ghosh, SR Chowdhury, T Gupta… - arXiv preprint arXiv …, 2023 - arxiv.org
Discrimination of quantum states under local operations and classical communication
(LOCC) is an intriguing question in the context of local retrieval of classical information …

Activating strong nonlocality from local sets: An elimination paradigm

SB Ghosh, T Gupta, AA V, A Das Bhowmik, S Saha… - Physical Review A, 2022 - APS
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 involves the …

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

P Ghosal, A Ghosal, SB Ghosh, A Mukherjee - Physical Review A, 2024 - APS
We introduce a stronger form of quantum nonlocality, termed local subset unidentifiability,
that arises from the limitation of spatially separated parties to perfectly identify a subset of …

Hierarchical activation of quantum nonlocality: Stronger than local indistinguishability

T Gupta, SB Ghosh, A AV, A Das Bhowmik, S Saha… - Physical Review A, 2023 - APS
The quantum state discrimination primitive becomes highly nontrivial in the limited
measurement setting and leads to different classes of impossibility, viz., indistinguishability …

Local Identification of Subsets of Quantum states: A Stronger Quantum Nonlocality

P Ghosal, A Ghosal, SB Ghosh, A Mukherjee - arXiv preprint arXiv …, 2022 - arxiv.org
Nonolocality makes quantum theory nontrivially sacred and useful in the paradigm of
information theoretic tasks. Apart from Bell nonlocality, which deals with measurement …

Any four orthogonal ququad–ququad maximally entangled states are locally markable

LY Hsu - New Journal of Physics, 2023 - iopscience.iop.org
In quantum state discrimination, the observers are given a quantum system and aim to verify
its state from the two or more possible target states. In the local quantum state marking as an …

Quantum theory is exclusive: a distributed computing setup

S Saha, T Guha, SS Bhattacharya, M Banik - arXiv preprint arXiv …, 2020 - arxiv.org
The framework of distributed computing, consisting of several spatially separated input-
output servers, has immense importance in distant data manipulation. One of the most …