Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Vittorio Vitale"'
Autor:
Vittorio Vitale, Aniket Rath, Petar Jurcevic, Andreas Elben, Cyril Branciard, Benoît Vermersch
Publikováno v:
PRX Quantum, Vol 5, Iss 3, p 030338 (2024)
We present the experimental measurement, on a quantum processor, of a series of polynomial lower bounds that converge to the quantum Fisher information (QFI), a fundamental quantity for certifying multipartite entanglement that is useful for metrolog
Externí odkaz:
https://doaj.org/article/4dcc06711c35464eb21f14aafe121102
Autor:
Antoine Neven, Jose Carrasco, Vittorio Vitale, Christian Kokail, Andreas Elben, Marcello Dalmonte, Pasquale Calabrese, Peter Zoller, Benoȋt Vermersch, Richard Kueng, Barbara Kraus
Publikováno v:
npj Quantum Information, Vol 7, Iss 1, Pp 1-12 (2021)
Abstract We propose an ordered set of experimentally accessible conditions for detecting entanglement in mixed states. The k-th condition involves comparing moments of the partially transposed density operator up to order k. Remarkably, the union of
Externí odkaz:
https://doaj.org/article/39a56a31f3d441e0929a52d635e4213d
Autor:
Aniket Rath, Vittorio Vitale, Sara Murciano, Matteo Votto, Jérôme Dubail, Richard Kueng, Cyril Branciard, Pasquale Calabrese, Benoît Vermersch
Publikováno v:
PRX Quantum, Vol 4, Iss 1, p 010318 (2023)
The operator entanglement (OE) is a key quantifier of the complexity of a reduced density matrix. In out-of-equilibrium situations, e.g., after a quantum quench of a product state, it is expected to exhibit an entanglement barrier. The OE of a reduce
Externí odkaz:
https://doaj.org/article/67a1177b64224cc0808a18b509737dbf
Publikováno v:
SciPost Physics, Vol 12, Iss 3, p 106 (2022)
When a quantum system initialized in a product state is subjected to either coherent or incoherent dynamics, the entropy of any of its connected partitions generically increases as a function of time, signalling the inevitable spreading of (quantu
Externí odkaz:
https://doaj.org/article/1eb78ae81a0d4961ad732bb2f80f887d
In the context of ground states of quantum many-body systems, the locality of entanglement between connected regions of space is directly tied to the locality of the corresponding entanglement Hamiltonian: the latter is dominated by local, few-body t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::52f32763d5aea5df95fd65b5037669c8
https://hdl.handle.net/20.500.11767/131437
https://hdl.handle.net/20.500.11767/131437
Autor:
A. de Candia, G. De Filippis, Vittorio Vitale, Arturo Tagliacozzo, Vittorio Cataudella, P. Lucignano
Publikováno v:
Scientific Reports, Vol 9, Iss 1, Pp 1-9 (2019)
Scientific Reports
Scientific Reports
Adiabatic quantum computation (AQC) is a promising counterpart of universal quantum computation, based on the key concept of quantum annealing (QA). QA is claimed to be at the basis of commercial quantum computers and benefits from the fact that the
Autor:
Alessandro Santini, Vittorio Vitale
Leggett-Garg's inequalities predict sharp bounds for some classical correlation functions that address the quantum or classical nature of real-time evolutions. We experimentally observe the violations of these bounds on single- and multi-qubit system
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a8d2d820509e04547e0838e576330504
Publikováno v:
SciPost Physics Core, Vol 3, Iss 2, p 012 (2020)
SciPost Physics Core
SciPost Physics Core
We study the disconnected entanglement entropy, $S^D$, of the Su-Schrieffer-Heeger model. $S^D$ is a combination of both connected and disconnected bipartite entanglement entropies that removes all area and volume law contributions, and is thus only
Autor:
'Vittorio, Vitale
Publikováno v:
Andreas, Elben
Autor:
Jose A. Carrasco, Christian Kokail, Vittorio Vitale, Pasquale Calabrese, Andreas Elben, Antoine Neven, Barbara Kraus, Peter Zoller, Benoît Vermersch, Richard Kueng, Marcello Dalmonte
Publikováno v:
npj Quantum Information, Vol 7, Iss 1, Pp 1-12 (2021)
npj Quantum Information
npj Quantum Information
We propose an ordered set of experimentally accessible conditions for detecting entanglement in mixed states. The $k$-th condition involves comparing moments of the partially transposed density operator up to order $k$. Remarkably, the union of all m