Zobrazeno 1 - 10
of 2 533
pro vyhledávání: '"A. Guéry"'
We numerically study the optimal control of an atomic Bose-Einstein condensate in an optical lattice. We present two generalizations of the gradient-based algorithm, GRAPE, in the non-linear case and for a two-dimensional lattice. We show how to cons
Externí odkaz:
http://arxiv.org/abs/2412.05170
The dynamics of a system composed of elastic hard particles confined by an isotropic harmonic potential are studied. In the low-density limit, the Boltzmann equation provides an excellent description, and the system does not reach equilibrium except
Externí odkaz:
http://arxiv.org/abs/2409.07831
Publikováno v:
Chaos 34, 103146 (2024)
In the absence of external forcing, all trajectories on the phase plane of the van der Pol oscillator tend to a closed, periodic, trajectory -- the limit cycle -- after infinite time. Here, we drive the van der Pol oscillator with an external time-de
Externí odkaz:
http://arxiv.org/abs/2407.03435
Autor:
Rodzinka, T., Dionis, E., Calmels, L., Beldjoudi, S., Béguin, A., Guéry-Odelin, D., Allard, B., Sugny, D., Gauguet, A.
Publikováno v:
Nat Commun 15, 10281 (2024)
The effective control of atomic coherence with cold atoms has made atom interferometry an essential tool for quantum sensors and precision measurements. The performance of these interferometers is closely related to the operation of large wave packet
Externí odkaz:
http://arxiv.org/abs/2403.14337
Autor:
Murzyn, Kevin, van der Geest, Maarten L. S., Guery, Leo, Nie, Zhonghui, van Essen, Pieter, Witte, Stefan, Kraus, Peter M.
Nonlinear optical microscopy provides elegant means for label-free imaging of biological samples and condensed matter systems. The widespread areas of application could even be increased if resolution was improved, which is currently limited by the f
Externí odkaz:
http://arxiv.org/abs/2403.06617
Publikováno v:
J. Phys. B 57, 133001 (2024)
Quantum optimal control is a set of methods for designing time-varying electromagnetic fields to perform operations in quantum technologies. This tutorial paper introduces the basic elements of this theory based on the Pontryagin maximum principle, i
Externí odkaz:
http://arxiv.org/abs/2403.00532
Publikováno v:
Phys. Rev. Lett. 132, 027101 (2024)
Boltzmann showed that in spite of momentum and energy redistribution through collisions, a rarefied gas confined in a isotropic harmonic trapping potential does not reach equilibrium; it evolves instead into a breathing mode where density, velocity a
Externí odkaz:
http://arxiv.org/abs/2312.09726
Autor:
T. Rodzinka, E. Dionis, L. Calmels, S. Beldjoudi, A. Béguin, D. Guéry-Odelin, B. Allard, D. Sugny, A. Gauguet
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-9 (2024)
Abstract The effective control of atomic coherence with cold atoms has made atom interferometry an essential tool for quantum sensors and precision measurements. The performance of these interferometers is closely related to the operation of large wa
Externí odkaz:
https://doaj.org/article/0708a567fa0c4e1aae9042f66889cc1b
Autor:
Arrouas, Floriane, Gabardos, Lucas, Ombredane, Nicolas, Dionis, Etienne, Dupont, Nathan, Billy, Juliette, Peaudecerf, Bruno, Sugny, Dominique, Odelin, David Guéry
Optimal control is a valuable tool for quantum simulation, allowing for the optimized preparation, manipulation, and measurement of quantum states. Through the optimization of a time-dependent control parameter, target states can be prepared to initi
Externí odkaz:
http://arxiv.org/abs/2307.15476
Autor:
Impens, François, Guéry-Odelin, David
Publikováno v:
Phys. Rev. A 109, 062618 (2024)
The monochromatic driving of a quantum system is a successful technique in quantum simulations, well captured by an effective Hamiltonian approach, and with applications in artificial gauge fields and topological engineering. In this letter, we inves
Externí odkaz:
http://arxiv.org/abs/2306.01676