Zobrazeno 1 - 10
of 119
pro vyhledávání: '"Xavier Waintal"'
Autor:
E. M. Stoudenmire, Xavier Waintal
Publikováno v:
Physical Review X, Vol 14, Iss 4, p 041029 (2024)
Grover’s algorithm is one of the primary algorithms offered as evidence that quantum computers can provide an advantage over classical computers. It involves an “oracle” (external quantum subroutine), which must be specified for a given applica
Externí odkaz:
https://doaj.org/article/8e1dd8a73368435090b7f2147ee73aa7
Autor:
Thomas Ayral, Thibaud Louvet, Yiqing Zhou, Cyprien Lambert, E. Miles Stoudenmire, Xavier Waintal
Publikováno v:
PRX Quantum, Vol 4, Iss 2, p 020304 (2023)
We develop a density-matrix renormalization group (DMRG) algorithm for the simulation of quantum circuits. This algorithm can be seen as the extension of the time-dependent DMRG from the usual situation of Hermitian Hamiltonian matrices to quantum ci
Externí odkaz:
https://doaj.org/article/5784f78ada4e4145ba10327194c53833
Autor:
Eleni Chatzikyriakou, Junliang Wang, Lucas Mazzella, Antonio Lacerda-Santos, Maria Cecilia da Silva Figueira, Alex Trellakis, Stefan Birner, Thomas Grange, Christopher Bäuerle, Xavier Waintal
Publikováno v:
Physical Review Research, Vol 4, Iss 4, p 043163 (2022)
In quantum nanoelectronics, numerical simulations have become a ubiquitous tool. Yet the comparison with experiments is often done at a qualitative level or restricted to a single device with a handful of fitting parameters. In this work, we assess t
Externí odkaz:
https://doaj.org/article/70d7171d342544c1a2a4f2e0ed98bc76
Autor:
Yuriel Núñez Fernández, Matthieu Jeannin, Philipp T. Dumitrescu, Thomas Kloss, Jason Kaye, Olivier Parcollet, Xavier Waintal
Publikováno v:
Physical Review X, Vol 12, Iss 4, p 041018 (2022)
We use tensor network techniques to obtain high-order perturbative diagrammatic expansions for the quantum many-body problem at very high precision. The approach is based on a tensor train parsimonious representation of the sum of all Feynman diagram
Externí odkaz:
https://doaj.org/article/e2f46dc0cf86446ab327425474e8ca10
Autor:
Shintaro Takada, Hermann Edlbauer, Hugo V. Lepage, Junliang Wang, Pierre-André Mortemousque, Giorgos Georgiou, Crispin H. W. Barnes, Christopher J. B. Ford, Mingyun Yuan, Paulo V. Santos, Xavier Waintal, Arne Ludwig, Andreas D. Wieck, Matias Urdampilleta, Tristan Meunier, Christopher Bäuerle
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-9 (2019)
Surface acoustic waves are promising candidates to convey flying qubits through semiconductor circuits. The authors investigate the central building block of such a circuit in an experiment and present a route to realise quantum logic gates with flyi
Externí odkaz:
https://doaj.org/article/c2d161ffd3594673a429ab737b18dbf8
Autor:
Gregoire Roussely, Everton Arrighi, Giorgos Georgiou, Shintaro Takada, Martin Schalk, Matias Urdampilleta, Arne Ludwig, Andreas D. Wieck, Pacome Armagnat, Thomas Kloss, Xavier Waintal, Tristan Meunier, Christopher Bäuerle
Publikováno v:
Nature Communications, Vol 9, Iss 1, Pp 1-6 (2018)
Electronic excitations in low-dimensional quantum nanoelectronic devices are collective waves that are strongly affected by the Coulomb interaction. Here, the authors demonstrate that they are able to prepare these collective excitations down to the
Externí odkaz:
https://doaj.org/article/3018ee2cb7004789ac6d7c86f4ab0ce1
Autor:
Marc Vila, Chuang-Han Hsu, Jose H. Garcia, L. Antonio Benítez, Xavier Waintal, Sergio O. Valenzuela, Vitor M. Pereira, Stephan Roche
Publikováno v:
Physical Review Research, Vol 3, Iss 4, p 043230 (2021)
The spin polarization induced by the spin Hall effect (SHE) in thin films typically points out of the plane. This is rooted on the specific symmetries of traditionally studied systems, not in a fundamental constraint. Recently, experiments on few-lay
Externí odkaz:
https://doaj.org/article/59eacd0487b340d39d0fb0e701c0064a
Publikováno v:
New Journal of Physics, Vol 23, Iss 2, p 023025 (2021)
T kwant is a Python package for the simulation of quantum nanoelectronics devices to which external time-dependent perturbations are applied. T kwant is an extension of the kwant package ( https://kwant-project.org/ ) and can handle the same types of
Externí odkaz:
https://doaj.org/article/263c56636dec419cbc0fc34507c19597
Publikováno v:
Physical Review X, Vol 10, Iss 4, p 041038 (2020)
An ultimate goal of quantum computing is to perform calculations beyond the reach of any classical computer. It is therefore imperative that useful quantum computers be very difficult to simulate classically, otherwise classical computers could be us
Externí odkaz:
https://doaj.org/article/78e4186ec3f2481a9ef3ef6cf033bd56
Publikováno v:
Physical Review Research, Vol 1, Iss 3, p 033188 (2019)
Simulations of quantum transport in coherent conductors have evolved into mature techniques that are used in fields of physics ranging from electrical engineering to quantum nanoelectronics and material science. The most efficient general-purpose alg
Externí odkaz:
https://doaj.org/article/e2cf3d61aa014e469a38569f44569499