Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Frédéric Dupuis"'
Publikováno v:
Nature Communications, Vol 9, Iss 1, Pp 1-11 (2018)
The security of DIQKD is difficult to prove, as one needs to take into account every possible attack strategy. Here, the authors develop a method to determine the entropy of a system as the sum of the entropies of its parts. Applied to DIQKD, this im
Externí odkaz:
https://doaj.org/article/b145f0c07f1844859fe7a39939946b6c
Publikováno v:
New Journal of Physics, Vol 15, Iss 5, p 053022 (2013)
Consider a bipartite system, of which one subsystem, A , undergoes a physical evolution separated from the other subsystem, R . One may ask under which conditions this evolution destroys all initial correlations between the subsystems A and R , i.e.
Externí odkaz:
https://doaj.org/article/e599e5eebdf042388eff93de624267bb
Autor:
Frédéric Dupuis, Ashutosh Marwah
We prove a simple uniform continuity bound for the sandwiched R\'enyi conditional entropy for $\alpha \in [1/2, 1) \cup (1, \infty]$, which is independent of the dimension of the conditioning system.
Comment: v2 is the published version. We have
Comment: v2 is the published version. We have
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fe800647f0c1bda5ff48482d3b7f875c
http://arxiv.org/abs/2201.05534
http://arxiv.org/abs/2201.05534
Autor:
Omar Fawzi, Frédéric Dupuis
Publikováno v:
IEEE Transactions on Information Theory. 65:7596-7612
The entropy accumulation theorem states that the smooth min-entropy of an $n$-partite system $A = (A_1, \ldots, A_n)$ is lower-bounded by the sum of the von Neumann entropies of suitably chosen conditional states up to corrections that are sublinear
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9657bd6257cf27b2d9b00b6dbc6c2c00
https://doi.org/10.1109/tit.2019.2929564
https://doi.org/10.1109/tit.2019.2929564
Publikováno v:
Communications in Mathematical Physics, 379 (3)
We ask the question whether entropy accumulates, in the sense that the operationally relevant total uncertainty about an $n$-partite system $A = (A_1, \ldots A_n)$ corresponds to the sum of the entropies of its parts $A_i$. The Asymptotic Equipartiti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bd8deb408d3ecc2769a8f48acf3d47d6
https://hdl.handle.net/20.500.11850/444948
https://hdl.handle.net/20.500.11850/444948
Publikováno v:
ITW 2019
ITW 2019, Aug 2019, Gotland, Sweden
ITW
ITW 2019, Aug 2019, Gotland, Sweden
ITW
36 pages, 7 figures, second version extending [v1] Submitted to IEEE Transactions on Informations Theory; International audience; We provide a purely quantum version of polar codes, achieving the coherent information of any quantum channel. Our schem
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cee13477204b65249860b663104b8105
https://hal.archives-ouvertes.fr/hal-02400482
https://hal.archives-ouvertes.fr/hal-02400482
We provide a purely quantum version of polar codes, achieving the symmetric coherent information of any qubit-input quantum channel. Our scheme relies on a recursive channel combining and splitting construction, where a two-qubit gate randomly chosen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4af1530e413f5d9b83361744e8f3f0fa
http://arxiv.org/abs/1904.04713
http://arxiv.org/abs/1904.04713
Autor:
Frédéric Dupuis, Mark M. Wilde
Publikováno v:
Quantum Information Processing. 15:1309-1345
This paper introduces "swiveled Renyi entropies" as an alternative to the Renyi entropic quantities put forward in [Berta et al., Phys. Rev. A 91, 022333 (2015)]. What distinguishes the swiveled Renyi entropies from the prior proposal of Berta et al.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f0a647a67534380a9e5807f859250411
https://doi.org/10.1007/s11128-015-1211-x
https://doi.org/10.1007/s11128-015-1211-x
Publikováno v:
Theory of Cryptography ISBN: 9783030038090
TCC (2)
TCC (2)
We investigate sampling procedures that certify that an arbitrary quantum state on $n$ subsystems is close to an ideal mixed state $\varphi^{\otimes n}$ for a given reference state $\varphi$, up to errors on a few positions. This task makes no sense
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2b86e79ad35a931528d00b860605b276
https://hal.inria.fr/hal-01926631
https://hal.inria.fr/hal-01926631
Publikováno v:
Physical Review Letters, 118 (8)
Physical Review Letters, 118
Physical Review Letters, 118
The decoupling technique is a fundamental tool in quantum information theory with applications ranging from quantum thermodynamics to quantum many body physics to the study of black hole radiation. In this work we introduce the notion of catalytic de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b3e24b61a0fa46dfeef1140ae835be5a
https://ir.cwi.nl/pub/29349
https://ir.cwi.nl/pub/29349