Literatura académica sobre el tema "Contrôle optimal quantique"
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Artículos de revistas sobre el tema "Contrôle optimal quantique"
Ai, Mingyao, Fei Wang, Jun Yu y Huiming Zhang. "Optimal subsampling for large-scale quantile regression". Journal of Complexity 62 (febrero de 2021): 101512. http://dx.doi.org/10.1016/j.jco.2020.101512.
Texto completoGrigor'ev, P. V. y Yu S. Kan. "Optimal Control of the Investment Portfolio with Respect to the Quantile Criterion". Automation and Remote Control 65, n.º 2 (febrero de 2004): 319–36. http://dx.doi.org/10.1023/b:aurc.0000014729.88225.6f.
Texto completoStephen, Bruce, Blair Brown, Andrew Young, Andrew Duncan, Henrique Helfer-Hoeltgebaum, Graeme West, Craig Michie y Stephen D. J. McArthur. "A Quantile Dependency Model for Predicting Optimal Centrifugal Pump Operating Strategies". Machines 10, n.º 7 (10 de julio de 2022): 557. http://dx.doi.org/10.3390/machines10070557.
Texto completoYang, Guangren, Xiaohui Liu y Heng Lian. "Optimal prediction for high-dimensional functional quantile regression in reproducing kernel Hilbert spaces". Journal of Complexity 66 (octubre de 2021): 101568. http://dx.doi.org/10.1016/j.jco.2021.101568.
Texto completoMakoni, Tendai, Delson Chikobvu y Caston Sigauke. "Hierarchical Forecasting of the Zimbabwe International Tourist Arrivals". Statistics, Optimization & Information Computing 9, n.º 1 (20 de enero de 2021): 137–56. http://dx.doi.org/10.19139/soic-2310-5070-959.
Texto completoRan, Xu, Chang Xu, Lei Ma y Feifei Xue. "Wind Power Interval Prediction with Adaptive Rolling Error Correction Based on PSR-BLS-QR". Energies 15, n.º 11 (4 de junio de 2022): 4137. http://dx.doi.org/10.3390/en15114137.
Texto completoZhou, Miao, Jun Liu, Aihong Tang y Xinyu You. "Capacity Demand Analysis of Rural Biogas Power Generation System with Independent Operation Considering Source-Load Uncertainty". Energies 17, n.º 8 (15 de abril de 2024): 1880. http://dx.doi.org/10.3390/en17081880.
Texto completoDimandja, Antoine Okitandjate, Léon Okenge, Octavie Lunguya, Albert Mwembo, Aaron Aruna, Luingi Minikulu, Jacques-Franck Bitilasi et al. "Déterminants de la morbidité et de la mortalité due au choléra à Lubumbashi, République démocratique du Congo : étude cas-témoins non appariée". European Scientific Journal, ESJ 18, n.º 21 (30 de junio de 2022): 65. http://dx.doi.org/10.19044/esj.2022.v18n21p65.
Texto completoLi, Lin, Hua Wang, Yepeng Liu y Fan Zhang. "Probabilistic interval prediction method based on shape‐adaptive quantile regression". Expert Systems, 21 de marzo de 2024. http://dx.doi.org/10.1111/exsy.13585.
Texto completoPetrov, Mikhail, Igor Radchenko, Damian Steiger, Renato Renner, Matthias Troyer y Vadim Makarov. "Independent quality assessment of a commercial quantum random number generator". EPJ Quantum Technology 9, n.º 1 (27 de junio de 2022). http://dx.doi.org/10.1140/epjqt/s40507-022-00136-z.
Texto completoTesis sobre el tema "Contrôle optimal quantique"
Liu, Kaipeng. "Contrôle quantique optimal et robuste dans des systèmes de petite dimension". Thesis, Bourgogne Franche-Comté, 2020. http://www.theses.fr/2020UBFCK045.
Texto completoOptimal control theory (OCT) is the basic and comprehensive method to obtain the optimal solutions of quantum systems controlled by external fields. It provides a powerful set of tools and concepts. One of the goals of the thesis is to design the technique of OCT in two- and three-state quantum systems taking into account losses and robustness, which is of primary importance for the implementation of control techniques in a broad class of platforms.Based on inverse-engineering techniques and the Pontryagin maximum principle (PMP), we establish and test the different optimal strategies showing how to control the transfer in three-level quantum systems considering energy- and time-minimum optimal solutions taking into account losses. These results, in particular, show that the usual adiabatic passage in such systems, known as stimulated Raman adiabatic passage (STIRAP), which leads to imperfect transfer, can be made exact thus achieving stimulated Raman exact passage (STIREP) while reducing the energy and the duration costs respectively of the controls.We next combine robustness with optimization. Instead of using a direct optimization procedure from OCT, we develop a technique of geometric optimization that allows the derivation of optimal and robust solutions from an inverse optimization. The method named robust inverse optimization (RIO) allows one to obtain numerical trajectories that can be made as accurate as required. The method is versatile and can be applied to various types of errors and of quantum control problems
Kontz, Cyrill. "Contrôle Optimal de la Dynamique Dissipative de Systèmes Quantiques". Phd thesis, Université de Bourgogne, 2008. http://tel.archives-ouvertes.fr/tel-00325098.
Texto completoHamraoui, Khalid. "Contrôle quantique de la rotation moléculaire et de processus de Résonance Magnétique Nucléaire". Thesis, Bourgogne Franche-Comté, 2019. http://www.theses.fr/2019UBFCK020/document.
Texto completoThe goal of this thesis is to apply quantum control techniques to manipulate molecular rotation and to enhance the efficiency of processes in Nuclear Magnetic Resonance.These techniques have been used theoretically and experimentally to control the orientation of a symmetric top molecule by means of THz laser fields. This study has been extended to the case of a long interaction distance between the field and the sample. In this case, the molecule cannot be approximated as isolated. We have also shown the extend to which the time evolution of the degree of orientation can be shaped. Optimal control techniques were used to design the THz field which allows to reach the corresponding dynamics, both at zero and non zero temperatures. Another chapter proposes a new optimization algorithm in the case of periodic quantum dynamics. We apply this algorithm to the maximization of the SNR in NMR. A last chapter is dedicated to a popular paper about the tennis racket effect. This geometric effect can be observed in any asymetric rigid body
Salomon, Julien. "Contrôle en chimie quantique : conception et analyse de schémas d'optimisation". Paris 6, 2005. http://www.theses.fr/2005PA066354.
Texto completoVan, Damme Léo. "Contrôle optimal de la dynamique des spins : applications en résonance magnétique nucléaire et information quantique". Thesis, Dijon, 2016. http://www.theses.fr/2016DIJOS045/document.
Texto completoThe goal of this thesis is to apply the optimal control theory to Nuclear Magnetic Resonance and Quantum Information. In a first step, we introduce the different topics and the dynamics of the analyzed systems. We give the necessary tools to use the Pontryagin Maximum Principle, and also an optimization algorithm, namely GRAPE.The first work is an application of the PMP to the control of a three-spin chain with unequal couplings. We continue with the study of a classical problem called "the tennis racket effect", which is a non-linear phenomenon occuring during the free rotation of a three-dimensional rigid body. We use the results in the following chapter to determine some control laws for a two- level quantum system. The last chapter presents a numerical method which aims at improving the robustness of a quantum NOT gate and at investigating the efficiency of different analytical approaches proposed in the literature
Ansel, Quentin. "Optimal control of inhomogeneous spin ensembles : applications in NMR and quantum optics". Thesis, Bourgogne Franche-Comté, 2018. http://www.theses.fr/2018UBFCK050/document.
Texto completoThe goal of this thesis is to apply optimal control theory to the dynamics ofinhomogeneous spin ensembles. The first part focuses on the control of a spin ensemble coupled to a cavity. The theory is introduced in detail, and a general method to efficiently control spins ispresented. Several pulses are derived in the bad/good cavity regimes using numerical optimal control techniques. Additionally, non-linear generalized functions are used in order to derivesimple approximated solutions. In a second step, the problem of spin echo Signal to Noise Ratio maximization is investigated, and maximization conditions are derived. It is shown that new pulses are superior to state-of-the-art square pulses in terms of fidelity and SNR maximization. Moreover, they allow us to explore new situations (e.g. Free Induction Decay measurementsin cavity-QED with a cavity damping longer than T2∗). The second part focuses on standard NMR/MRI problems. Two distinct situations of selectivity are investigated. The first one consists of determining the time minimum pulse which produces the most offset-selective transformation. In the ultra-selectivity case, the optimal solution is a singular arc of constant amplitude. However,if additional robustness constraints are taken into account, the optimal solution can be a regular arc. The second situation is the optimization of databases for MR-fingerprinting experiments. In this case, a control field is designed so that it generates a fingerprint database which maximizesthe recognition process between several spins with different parameters
Ben, Haj Yedder Adel. "Optimisation numérique et contrôle optimal : applications en chimie moléculaire". Phd thesis, Ecole des Ponts ParisTech, 2002. http://tel.archives-ouvertes.fr/tel-00005677.
Texto completoDans le Chapitre 7, on présente des résultats préliminaires sur un autre problème de contrôle par laser utilisant les mêmes outils que ceux présentés dans le premier chapitre. Ce problème concerne l'optimisation de la génération d'harmoniques hautes (HHG) par un atome d'hydrogène excité par un champ laser dans le but de favoriser la création d'un champ laser ultra-court (laser attoseconde).
Dans le Chapitre 8, on présente des outils numériques développés spécifiquement pour traiter des problèmes d'optimisation de géométrie pour la chimie moléculaire.
Dans ce problème on cherche à optimiser la position de N particules dont l'énergie d'interaction est donnée (entre autres) par le potentiel de Lennard-Jones.
Enfin, le chapitre 9 est consacré à des résultats théoriques sur le problème Optimized Effective Potential (OEP) pour la minimisation de l'énergie de Hartree-Fock.
Dans ce problème on se pose la question de la validité de la simplification qui consiste à remplacer les équations de Hartree-Fock par des équations aux valeurs propres plus simples.
Lapert, Marc. "Développement de nouvelles techniques de contrôle optimal en dynamique quantique : de la Résonance Magnétique Nucléaire à la physique moléculaire". Phd thesis, Université de Bourgogne, 2011. http://tel.archives-ouvertes.fr/tel-00728830.
Texto completoChenel, Aurélie. "Dynamique et contrôle de systèmes quantiques ouverts". Phd thesis, Université Paris Sud - Paris XI, 2014. http://tel.archives-ouvertes.fr/tel-01061945.
Texto completoJandura, Sven. "Optimized quantum gates for neutral atom quantum computers". Electronic Thesis or Diss., Strasbourg, 2024. http://www.theses.fr/2024STRAF027.
Texto completoNeutral atoms have recently emerged as a competitive platform for quantum computing. The development of high delity entangling quantum gates is a key to success of this platform. In this thesis, we develop several new and optimized protocols for the implementation of two- and multi-qubit quantum gates on neutral atoms. We introduce the family of time-optimal protocols, which implement a given quantum gate as fast as possible by applying a single laser pulse with a time-dependent phase. We also explore gate protocols which are particularly robust against certain experimental error sources, and gates which are optimized for their use in a quantum error correction code. Finally, we propose two new protocols to implement non-local multi-qubit gates on neutral atoms coupled to a common cavity mode which can be implemented simply by a classical drive of the cavity. The results of this thesis allow for simpler, higher quality, and more robust quantum gates on neutral atoms, and constitute a step towards realizing the vision of a quantum computer
Actas de conferencias sobre el tema "Contrôle optimal quantique"
Kianinejad, Amir, Amir Salehi, Hamed Darabi, Rohan Thavarajah y Nick Ruta. "Optimal Horizontal Well Placement with Deep-Learning-Based Production Forecast in Unconventional Assets". En SPE Annual Technical Conference and Exhibition. SPE, 2022. http://dx.doi.org/10.2118/210177-ms.
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