Zobrazeno 1 - 10
of 60
pro vyhledávání: '"Kokail, Christian"'
We discuss Hamiltonian and Liouvillian learning for analog quantum simulation from non-equilibrium quench dynamics in the limit of weakly dissipative many-body systems. We present various strategies to learn the operator content of the Hamiltonian an
Externí odkaz:
http://arxiv.org/abs/2405.06768
Autor:
Joshi, Manoj K., Kokail, Christian, van Bijnen, Rick, Kranzl, Florian, Zache, Torsten V., Blatt, Rainer, Roos, Christian F., Zoller, Peter
Publikováno v:
Nature 624, 539-544 (2023)
Entanglement is a distinguishing feature of quantum many-body systems, and uncovering the entanglement structure for large particle numbers in quantum simulation experiments is a fundamental challenge in quantum information science. Here we perform e
Externí odkaz:
http://arxiv.org/abs/2306.00057
Autor:
Carrasco, Jose, Votto, Matteo, Vitale, Vittorio, Kokail, Christian, Neven, Antoine, Zoller, Peter, Vermersch, Benoît, Kraus, Barbara
We present experimentally and numerically accessible quantities that can be used to differentiate among various families of random entangled states. To this end, we analyze the entanglement properties of bipartite reduced states of a tripartite pure
Externí odkaz:
http://arxiv.org/abs/2212.10181
Digital Quantum Simulation, Learning of the Floquet Hamiltonian, and Quantum Chaos of the Kicked Top
Publikováno v:
J. Phys. A: Math. Theor. 55 334003 (2022)
The kicked top is one of the paradigmatic models in the study of quantum chaos~[F.~Haake et al., \emph{Quantum Signatures of Chaos (Springer Series in Synergetics vol 54)} (2018)]. Recently it has been shown that the onset of quantum chaos in the kic
Externí odkaz:
http://arxiv.org/abs/2208.13837
Publikováno v:
PRX Quantum 3, 030324 2022
The goal of digital quantum simulation is to approximate the dynamics of a given target Hamiltonian via a sequence of quantum gates, a procedure known as Trotterization. The quality of this approximation can be controlled by the so called Trotter ste
Externí odkaz:
http://arxiv.org/abs/2203.15846
Publikováno v:
Quantum 6, 702 (2022)
Topological phases are characterized by their entanglement properties, which is manifest in a direct relation between entanglement spectra and edge states discovered by Li and Haldane. We propose to leverage the power of synthetic quantum systems for
Externí odkaz:
http://arxiv.org/abs/2110.03913
Autor:
Kuzmin, Viacheslav, Zache, Torsten V., Kokail, Christian, Pastori, Lorenzo, Celi, Alessio, Baranov, Mikhail, Zoller, Peter
Experimental studies of synthetic quantum matter are necessarily restricted to approximate ground states prepared on finite-size quantum simulators. In general, this limits their reliability for strongly correlated systems, for instance, in the vicin
Externí odkaz:
http://arxiv.org/abs/2108.12378
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
Autor:
Neven, Antoine, Carrasco, Jose, Vitale, Vittorio, Kokail, Christian, Elben, Andreas, Dalmonte, Marcello, Calabrese, Pasquale, Zoller, Peter, Vermersch, Benoît, Kueng, Richard, Kraus, Barbara
Publikováno v:
Npj Quantum Inf. 7, 152 (2021)
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
Externí odkaz:
http://arxiv.org/abs/2103.07443
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