Zobrazeno 1 - 10
of 52
pro vyhledávání: '"Benoît Vermersch"'
Autor:
Benoît Vermersch, Marko Ljubotina, J. Ignacio Cirac, Peter Zoller, Maksym Serbyn, Lorenzo Piroli
Publikováno v:
Physical Review X, Vol 14, Iss 3, p 031035 (2024)
Estimating global properties of many-body quantum systems such as entropy or bipartite entanglement is a notoriously difficult task, typically requiring a number of measurements or classical postprocessing resources growing exponentially in the syste
Externí odkaz:
https://doaj.org/article/757aecbe0dce4386b44455007d7e6966
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:
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
Autor:
Simone Notarnicola, Andreas Elben, Thierry Lahaye, Antoine Browaeys, Simone Montangero, Benoît Vermersch
Publikováno v:
New Journal of Physics, Vol 25, Iss 10, p 103006 (2023)
We present a toolbox to probe quantum many-body states implemented on Rydberg-atoms quantum hardware via randomized measurements. We illustrate the efficacy of this measurement toolbox in the context of probing entanglement, via the estimation of the
Externí odkaz:
https://doaj.org/article/8038340ae8484b1da46d8c9d95d35602
Publikováno v:
Physical Review X, Vol 12, Iss 1, p 011018 (2022)
The spectral form factor (SFF), characterizing statistics of energy eigenvalues, is a key diagnostic of many-body quantum chaos. In addition, partial spectral form factors (PSFFs) can be defined which refer to subsystems of the many-body system. They
Externí odkaz:
https://doaj.org/article/349d7de994f0452e83272dbf5024cf4c
Autor:
Andreas Elben, Steven T. Flammia, Hsin-Yuan Huang, Richard Kueng, John Preskill, Benoît Vermersch, Peter Zoller
Publikováno v:
Nature Reviews Physics. 5:9-24
Increasingly sophisticated programmable quantum simulators and quantum computers are opening unprecedented opportunities for exploring and exploiting the properties of highly entangled complex quantum systems. The complexity of large quantum systems
Autor:
Alessio Celi, Benoît Vermersch, Oscar Viyuela, Hannes Pichler, Mikhail D. Lukin, Peter Zoller
Publikováno v:
Physical Review X, Vol 10, Iss 2, p 021057 (2020)
Solving strongly coupled gauge theories in two or three spatial dimensions is of fundamental importance in several areas of physics ranging from high-energy physics to condensed matter. On a lattice, gauge invariance and gauge-invariant (plaquette) i
Externí odkaz:
https://doaj.org/article/6c77c9778d4040e89747fe0ba6956632
Autor:
Christopher Monroe, Peter Zoller, Victor Galitski, Benoît Vermersch, Amit Vikram, Andreas Elben, Lata Kh Joshi, William Morong, Arinjoy De, Kate Collins
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2197bb629c32f1a3ceb6ce040f827b79
https://doi.org/10.26226/m.6275705766d5dcf63a311332
https://doi.org/10.26226/m.6275705766d5dcf63a311332
The quantum Fisher information (QFI) is a fundamental quantity of interest in many areas from quantum metrology to quantum information theory. It can in particular be used as a witness to establish the degree of multi-particle entanglement in quantum
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5fd405831fd3aacfc6296ad456f52915
https://hal.archives-ouvertes.fr/hal-03357478
https://hal.archives-ouvertes.fr/hal-03357478
Publikováno v:
Annalen der Physik. 534:2200064
We review results about entanglement (or modular) Hamiltonians of quantum many-body systems in field theory and statistical mechanics models, as well as recent applications in the context of quantum information and quantum simulation.
32 pages,
32 pages,