Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Quantum Information and Computation

CTC assisted PR box type correlation can lead to signaling

ChakrabartyIndranil, PramanikTanumoy, K PatiArun, AgrawalPankaj

Published Oct 1, 2014• 0 citations
Publisher

Abstract

It is known that there exist non-local correlations that respect no-signaling criterion, but violate Bell-type inequalities more than quantum-mechanical correlations. Such super quantum correlation...
DOI
10.5555/2685164.2685178

Related papers

CTC assisted PR box type correlation can lead to signaling

Indranil Chakrabarty, Tanumoy Pramanik, Arun Kumar Pati +1 more

It is known that there exist non-local correlations that respect no-signaling criterion, but violate Bell-type inequalities more than quantum-mechanical correlations. Such super quantum correlations were introduced as the Popescu-Rohrlich (PR) box. We consider such non-local boxes with two/three inputs and two/three outputs. We show that these super quantum correlations can lead to signaling when at least one of the input bit has access to a word line along a closed time-like curve.

arXiv:1107.2908•Jul 14, 2011•0 citations

Unconditional Quantum Correlations do not Violate Bell’s Inequality

Andrei Yu. Khrennikov

arXiv:1503.08016•Foundations of Physics•Jul 3, 2015•2 citations

Quantum Channels that cannot Transmit Quantum Correlations can Generate Quantum Entanglement from Classical Correlation

László Gyöngyösi, Sándor Imre

Bulletin of the American Physical Society•Jun 7, 2013•0 citations

CTC assisted PR box type correlation can lead to signaling

Indranil Chakrabarty, Tanumoy Pramanik, Arun Kumar Pati +1 more

It is known that there exist non-local correlations that respect no-signaling criterion, but violate Bell-type inequalities more than quantum-mechanical correlations. Such super quantum correlations were introduced as the Popescu-Rohrlich (PR) box. We consider such non-local boxes with two/three inputs and two/three outputs. We show that these super quantum correlations can lead to signaling when at least one of the input bit has access to a word line along a closed time-like curve.

Quantum Information and Computation•Oct 1, 2014•3 citations

Quantum correlation that admits local-hidden-variable theory rules out local hidden variables from quantum theory

Koji Nagata

•Feb 11, 2003•0 citations

Non-Local Reality with No-Signalling

Sankalp Bagaria, R Mayilmurugan

Abstract Objectives: To derive assumptions of Bell Inequalities from one single postulate – Absolute Postulate of Universe – as mentioned by the author S.Bagaria. Method: It focuses on the assumptions – locality, reality, measurement independence and counter-factual definiteness - made in proving Bell’s Inequality and derive them from Absolute Postulate of the Universe. Then, its consequences are studied like PR Boxes being real, DI-QKD, quantum information theory, randomness and foundations of quantum mechanics. Findings: From Absolute Postulate of the Universe, it has been showed that there is absolute determinism in world, resulting in zero theoretical uncertainty. Thus, the algebraically maximal correlations (S = 4) are possible. Thus, the PR-boxes can be real. But, Tsirelson Bound can’t be violated in quantum computing as HUP can’t be violated in Quantum Physics. Novelty: The four assumptions of Bell Inequality are derived from Absolute Postulate of the Universe. The correlations in the universe can be maximal yet unverifiable experimentally. EPR paradox is resolved without assuming faster than light transfer of information as the world is shown to be “non-local with no-signalling”. Keywords: Bell inequality, Popescu–Rohrlich box, Tsirelson bound, Quantum nonlocality, No-signalling, CHSH inequality, Quantum violation, absolute determinism

•Oct 22, 2026•0 citations
Abstract Objectives: To derive assumptions of Bell Inequalities from one single postulate – Absolute Postulate of Universe – as mentioned by the author S.Bagaria. Method: It focuses on the assumptions – locality, reality, measurement independence and counter-factual definiteness - made in proving Bell’s Inequality and derive them from Absolute Postulate of the Universe. Then, its consequences are studied like PR Boxes being real, DI-QKD, quantum information theory, randomness and foundations of quantum mechanics. Findings: From Absolute Postulate of the Universe, it has been showed that there is absolute determinism in world, resulting in zero theoretical uncertainty. Thus, the algebraically maximal correlations (S = 4) are possible. Thus, the PR-boxes can be real. But, Tsirelson Bound can’t be violated in quantum computing as HUP can’t be violated in Quantum Physics. Novelty: The four assumptions of Bell Inequality are derived from Absolute Postulate of the Universe. The correlations in the universe can be maximal yet unverifiable experimentally. EPR paradox is resolved without assuming faster than light transfer of information as the world is shown to be “non-local with no-signalling”. Keywords: Bell inequality, Popescu–Rohrlich box, Tsirelson bound, Quantum nonlocality, No-signalling, CHSH inequality, Quantum violation, absolute determinism