English
Interpolation between random matrices and free operators, and application to Quantum Information Theory
Multi angle
Auteurs : Parraud, Félix (Auteur de la conférence)
CIRM (Editeur )
46L54 - Free probability and free operator algebras
52A22 - Random convex sets and integral geometry
60B20 - Random matrices (probabilistic aspects)
94A17 - Measures of information, entropy
CIRM (Editeur )
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Résumé :
One of the most important question in Quantum Information Theory was to figure out whether the so-called Minimum Output Entropy (MOE) was additive. In this talk I will start by defining the counter-example originally built by Belinschi, Collins and Nechita. Then I will explain how with the help of a novel strategy, we managed with Collins to compute concentration estimate on the probability that the MOE is non-additive and how it yielded some explicit bounds for the dimension of spaces where violation of the MOE occurs. Finally, I will talk more in detail about this novel strategy which consists in interpolating random matrices and free operators with the help of free stochastic calculus.
Mots-Clés : random matrix theory; free probability theory; random set; quantum information theory
Codes MSC : Mots-Clés : random matrix theory; free probability theory; random set; quantum information theory
46L54 - Free probability and free operator algebras
52A22 - Random convex sets and integral geometry
60B20 - Random matrices (probabilistic aspects)
94A17 - Measures of information, entropy
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Informations sur la Vidéo
Réalisateur : Hennenfent, GuillaumeLangue : Anglais Date de Publication : 26/07/2024 Date de Captation : 08/07/2024 Sous Collection : Research School Catégorie arXiv : Operator Algebras ; Probability ; Quantum Physics ; Mathematical Physics Domaine(s) : Physique Mathématique ; Probabilités & Statistiques Format : MP4 (.mp4) - HD Durée : 00:43:46 Audience : Chercheurs ; Etudiants Science Cycle 2 ; Doctoral Students, Post-Doctoral Students Download : https://videos.cirm-math.fr/2024-07-08_parraud.mp4 
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Informations sur la Rencontre
Nom de la Rencontre : Jean Morlet Chair - Research school: Random quantum channels: entanglement and entropies / Chaire Jean Morlet - Ecole: Canaux quantiques aléatoires: Intrication et entropiesOrganisateurs de la Rencontre : Collins, Benoît ; Demni, Nizar ; Kadri, Hachem ; Lancien, Cécilia ; Nechita, Ion ; Pellegrini, Clément Dates : 08/07/2024 - 12/07/2024 Année de la rencontre : 2024 URL de la Rencontre : https://conferences.cirm-math.fr/3051.html
Données de citation
DOI : 10.24350/CIRM.V.20200403Citer cette vidéo: Parraud, Félix (2024). Interpolation between random matrices and free operators, and application to Quantum Information Theory. CIRM. Audiovisual resource. doi:10.24350/CIRM.V.20200403 URI : http://dx.doi.org/10.24350/CIRM.V.20200403 |
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Bibliographie
- PARRAUD, Félix. On the operator norm of non-commutative polynomials in deterministic matrices and iid Haar unitary matrices. Probability Theory and Related Fields, 2022, vol. 182, no 3, p. 751-806. - http://dx.doi.org/10.1007/s00440-021-01101-0
- COLLINS, Benoît et PARRAUD, Félix. Concentration estimates for random subspaces of a tensor product and application to quantum information theory. Journal of Mathematical Physics, 2022, vol. 63, no 10. - https://doi.org/10.1063/5.0073837
- PARRAUD, Félix. Asymptotic expansion of smooth functions in deterministic and iid Haar unitary matrices, and application to tensor products of matrices. arXiv preprint arXiv:2302.02943, 2023. - https://doi.org/10.48550/arXiv.2302.02943
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