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Article: TwoQubit Pure Entanglement as Optical Social Welfare Resource in Bayesian Game
Title  TwoQubit Pure Entanglement as Optical Social Welfare Resource in Bayesian Game 

Authors  
Issue Date  2019 
Publisher  Verein zur Foerderung des Open Access Publizierens in den Quantenwissenschaften. The Journal's web site is located at https://quantumjournal.org/ 
Citation  Quantum (Vienna), 2019, v. 3, p. 185 How to Cite? 
Abstract  Entanglement is of paramount importance in quantum information theory. Its supremacy over classical correlations has been demonstrated in a numerous information theoretic protocols. Here we study possible adequacy of quantum entanglement in Bayesian game theory, particularly in social welfare solution (SWS), a strategy which the players follow to maximize sum of their payoffs. Given a multipartite quantum state as an advice, players can come up with several correlated strategies by performing local measurements on their parts of the quantum state. A quantum strategy is called quantumSWS if it is advantageous over a classical equilibrium (CE) strategy in the sense that none of the players has to sacrifice their CEpayoff rather some have incentive and at the same time it maximizes sum of all players' payoffs over all possible quantum advantageous strategies. Quantum state yielding such a quantumSWS is called a quantum social welfare advice (SWA). We show that any twoqubit pure entangled state, even if it is arbitrarily close to a product state, can serve as quantumSWA in some Bayesian game. Our result, thus, gives cognizance to the fact that every twoqubit pure entanglement is the best resource for some operational task. 
Persistent Identifier  http://hdl.handle.net/10722/278773 
ISSN 
DC Field  Value  Language 

dc.contributor.author  Banik, M   
dc.contributor.author  Bhattacharya, SS   
dc.contributor.author  Ganguly, N   
dc.contributor.author  Guha, T   
dc.contributor.author  Mukherjee, A   
dc.contributor.author  Rai, A   
dc.contributor.author  Roy, A   
dc.date.accessioned  20191021T02:13:48Z   
dc.date.available  20191021T02:13:48Z   
dc.date.issued  2019   
dc.identifier.citation  Quantum (Vienna), 2019, v. 3, p. 185   
dc.identifier.issn  2521327X   
dc.identifier.uri  http://hdl.handle.net/10722/278773   
dc.description.abstract  Entanglement is of paramount importance in quantum information theory. Its supremacy over classical correlations has been demonstrated in a numerous information theoretic protocols. Here we study possible adequacy of quantum entanglement in Bayesian game theory, particularly in social welfare solution (SWS), a strategy which the players follow to maximize sum of their payoffs. Given a multipartite quantum state as an advice, players can come up with several correlated strategies by performing local measurements on their parts of the quantum state. A quantum strategy is called quantumSWS if it is advantageous over a classical equilibrium (CE) strategy in the sense that none of the players has to sacrifice their CEpayoff rather some have incentive and at the same time it maximizes sum of all players' payoffs over all possible quantum advantageous strategies. Quantum state yielding such a quantumSWS is called a quantum social welfare advice (SWA). We show that any twoqubit pure entangled state, even if it is arbitrarily close to a product state, can serve as quantumSWA in some Bayesian game. Our result, thus, gives cognizance to the fact that every twoqubit pure entanglement is the best resource for some operational task.   
dc.language  eng   
dc.publisher  Verein zur Foerderung des Open Access Publizierens in den Quantenwissenschaften. The Journal's web site is located at https://quantumjournal.org/   
dc.relation.ispartof  Quantum (Vienna)   
dc.title  TwoQubit Pure Entanglement as Optical Social Welfare Resource in Bayesian Game   
dc.type  Article   
dc.identifier.email  Bhattacharya, SS: some@hku.hk   
dc.description.nature  link_to_OA_fulltext   
dc.identifier.doi  10.22331/q20190909185   
dc.identifier.hkuros  307686   
dc.identifier.volume  3   
dc.identifier.spage  185   
dc.identifier.epage  185   
dc.publisher.place  Vienna   