Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Elben, Andreas"'
Autor:
Naldesi, Piero, Elben, Andreas, Minguzzi, Anna, Clément, David, Zoller, Peter, Vermersch, Benoît
We provide a measurement protocol to estimate 2- and 4-point fermionic correlations in ultra-cold atom experiments. Our approach is based on combining random atomic beam splitter operations, which can be realized with programmable optical landscapes,
Externí odkaz:
http://arxiv.org/abs/2205.00981
Autor:
Notarnicola, Simone, Elben, Andreas, Lahaye, Thierry, Browaeys, Antoine, Montangero, Simone, Vermersch, Benoit
Publikováno v:
New J. Phys. 25 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:
http://arxiv.org/abs/2112.11046
Publikováno v:
New Journal of Physics, 24, 023037 (2022)
Information scrambling, which is the spread of local information through a system's many-body degrees of freedom, is an intrinsic feature of many-body dynamics. In quantum systems, the out-of-time-ordered correlator (OTOC) quantifies information scra
Externí odkaz:
http://arxiv.org/abs/2107.02196
Autor:
Kokail, Christian, Sundar, Bhuvanesh, Zache, Torsten V., Elben, Andreas, Vermersch, Benoît, Dalmonte, Marcello, van Bijnen, Rick, Zoller, Peter
Publikováno v:
Phys. Rev. Lett. 127, 170501(2021)
Learning the structure of the entanglement Hamiltonian (EH) is central to characterizing quantum many-body states in analog quantum simulation. We describe a protocol where spatial deformations of the many-body Hamiltonian, physically realized on the
Externí odkaz:
http://arxiv.org/abs/2105.04317
Publikováno v:
PRX Quantum 2, 010102 (2021)
In this perspective we discuss verification of quantum devices in the context of specific examples, formulated as proposed experiments. Our first example is verification of analog quantum simulators as Hamiltonian learning, where the input Hamiltonia
Externí odkaz:
http://arxiv.org/abs/2102.05927
Autor:
Vitale, Vittorio, Elben, Andreas, Kueng, Richard, Neven, Antoine, Carrasco, Jose, Kraus, Barbara, Zoller, Peter, Calabrese, Pasquale, Vermersch, Benoit, Dalmonte, Marcello
Publikováno v:
SciPost Phys. 12, 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 (quantum)
Externí odkaz:
http://arxiv.org/abs/2101.07814
Autor:
Cian, Ze-Pei, Dehghani, Hossein, Elben, Andreas, Vermersch, Benoît, Zhu, Guanyu, Barkeshli, Maissam, Zoller, Peter, Hafezi, Mohammad
Publikováno v:
Phys. Rev. Lett. 126, 050501 (2021)
One of the main topological invariants that characterizes several topologically-ordered phases is the many-body Chern number (MBCN). Paradigmatic examples include several fractional quantum Hall phases, which are expected to be realized in different
Externí odkaz:
http://arxiv.org/abs/2005.13543
Autor:
Joshi, Manoj K., Elben, Andreas, Vermersch, Benoît, Brydges, Tiff, Maier, Christine, Zoller, Peter, Blatt, Rainer, Roos, Christian F.
Publikováno v:
Phys. Rev. Lett. 124, 240505 (2020)
In ergodic many-body quantum systems, locally encoded quantum information becomes, in the course of time evolution, inaccessible to local measurements. This concept of "scrambling" is currently of intense research interest, entailing a deep understan
Externí odkaz:
http://arxiv.org/abs/2001.02176
Autor:
Elben, Andreas, Vermersch, Benoît, van Bijnen, Rick, Kokail, Christian, Brydges, Tiff, Maier, Christine, Joshi, Manoj, Blatt, Rainer, Roos, Christian F., Zoller, Peter
Publikováno v:
Phys. Rev. Lett. 124, 010504 (2020)
We describe a protocol for cross-platform verification of quantum simulators and quantum computers. We show how to measure directly the overlap $\textrm{Tr}\left[\rho_1 \rho_2\right]$ and the purities $\textrm{Tr}\left[\rho^2_{1,2}\right]$, and thus
Externí odkaz:
http://arxiv.org/abs/1909.01282
Autor:
Elben, Andreas, Yu, Jinlong, Zhu, Guanyu, Hafezi, Mohammad, Pollmann, Frank, Zoller, Peter, Vermersch, Benoît
Publikováno v:
Sci. Adv. 6, eaaz3666 (2020)
The classification of symmetry-protected topological (SPT) phases in one dimension has been recently achieved, and had a fundamental impact in our understanding of quantum phases in condensed matter physics. In this framework, SPT phases can be ident
Externí odkaz:
http://arxiv.org/abs/1906.05011