Zobrazeno 1 - 10
of 49
pro vyhledávání: '"Anurag Anshu"'
Autor:
Anurag Anshu, Rahul Jain
Publikováno v:
npj Quantum Information, Vol 8, Iss 1, Pp 1-7 (2022)
Abstract We address the question of efficient implementation of quantum protocols, with small communication and entanglement, and short depth circuit for encoding or decoding. We introduce two methods for this; the first constructs a resource-efficie
Externí odkaz:
https://doaj.org/article/71387b5f510a495992da19eb49889f07
Autor:
Anurag Anshu, Tony Metger
Publikováno v:
Quantum, Vol 7, p 999 (2023)
We prove concentration bounds for the following classes of quantum states: (i) output states of shallow quantum circuits, answering an open question from \cite{DMRF22}; (ii) injective matrix product states; (iii) output states of dense Hamiltonian ev
Externí odkaz:
https://doaj.org/article/0b7243c17da742369c1b7dfecc37cf19
Autor:
Anurag Anshu
Publikováno v:
Harvard Data Science Review (2022)
Externí odkaz:
https://doaj.org/article/ed98e053fa154811810ac55a393827be
Publikováno v:
Physical Review X, Vol 11, Iss 1, p 011047 (2021)
One of the most fundamental problems in quantum many-body physics is the characterization of correlations among thermal states. Of particular relevance is the thermal area law, which justifies the tensor network approximations to thermal states with
Externí odkaz:
https://doaj.org/article/1b172ab7d3c645b98c3e968df9a25d99
Autor:
Anurag Anshu
Publikováno v:
New Journal of Physics, Vol 18, Iss 8, p 083011 (2016)
We consider the problem of determining the energy distribution of quantum states that satisfy exponential decay of correlation and product states, with respect to a quantum local Hamiltonian on a spin lattice. For a quantum state on a D -dimensional
Externí odkaz:
https://doaj.org/article/31abe59da7f845c2a056eb1f76f6d38d
Publikováno v:
Nature Physics. 18:1362-1366
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8b37c193d07a6e2ba483066c3dc22ac6
https://doi.org/10.1038/s41567-022-01740-7
https://doi.org/10.1038/s41567-022-01740-7
Publikováno v:
Nature Physics. 17:931-935
Learning the Hamiltonian that describes interactions in a quantum system is an important task in both condensed-matter physics and the verification of quantum technologies. Its classical analogue arises as a central problem in machine learning known
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8d797f89b09115a398861d4645f651ab
https://doi.org/10.1038/s41567-021-01232-0
https://doi.org/10.1038/s41567-021-01232-0
Autor:
Anurag Anshu, Nikolas P. Breuckmann
Publikováno v:
Anshu, A & Breuckmann, N P 2022, ' A construction of combinatorial NLTS ', Journal of Mathematical Physics, vol. 63, no. 12, 122201 . https://doi.org/10.1063/5.0113731
The NLTS (No Low-Energy Trivial State) conjecture of Freedman and Hastings [2014] posits that there exist families of Hamiltonians with all low energy states of high complexity (with complexity measured by the quantum circuit depth preparing the stat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2a8dba8227d0c251204f9a8bf5015c0f
http://arxiv.org/abs/2206.02741
http://arxiv.org/abs/2206.02741
Publikováno v:
ISIT
We revisit the task of quantum state redistribution in the one-shot setting, and design a protocol for this task with communication cost in terms of a measure of distance from quantum Markov chains. More precisely, the distance is defined in terms of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::513526cc474b722ffe424b8c20ebb541
https://doi.org/10.1109/tit.2023.3271316
https://doi.org/10.1109/tit.2023.3271316
Publikováno v:
IEEE Transactions on Information Theory. 65:1287-1306
A capacity of a quantum channel characterizes the limits of reliable communication through a noisy quantum channel. This fundamental information-theoretic question is very well studied specially in the setting of many independent uses of the channel.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::81a86b21412f25e89f5c2eb707007d0e
https://doi.org/10.1109/tit.2018.2851297
https://doi.org/10.1109/tit.2018.2851297