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SUMMARY:Playing games with quantum entanglement and other correlations
DTSTART:20261106T141500Z
DTEND:20261106T160000Z
DTSTAMP:20261110T161600Z
UID:indico-event-1909@indico.hiskp.uni-bonn.de
DESCRIPTION:Speakers: Andreas Winter (Universität zu Köln)\n\nBayesian g
 ames\, also known as games with incomplete information\, are a fruitful ar
 ena for testing out the impact of correlations on a set of independent age
 nts (players) via the game equilibria in the sense of Nash to which they g
 ive rise. It was realised some time ago that quantum states shared between
  the players can lead to new and beneficial equilibria\, compared to class
 ical correlation. While until now examples of this effect (of which we wil
 l review one) required an entangled state\, we can now demonstrate that ev
 en separable quantum states can create new\, genuinely quantum equilibria 
 in games\, which are advantageous with respect to all classically correlat
 ed equilibria. \nThis shows that non-classical correlations beyond entangl
 ement are indeed a resource\, even in otherwise entirely classical situati
 ons. Our result brings quantum advantage in games significantly closer to 
 possible realisation\, and it shows that the weakest form of non-classical
  correlation (aka quantum discord) can be a resource in multi-agent scenar
 ios. These insights also illuminate and significantly differentiate the ex
 isting hierarchy of "legitimate notions of equilibrium" in Bayesian games.
   \n[Based on arXiv:1605.07896\, and arXiv:2607.09477 with Yaqing Wang a
 nd Giannicola Scarpa]\n\nhttps://indico.hiskp.uni-bonn.de/event/1909/
LOCATION:Nußallee 14-16/0.023 (HISKP) - Lecture Hall (HISKP)
URL:https://indico.hiskp.uni-bonn.de/event/1909/
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