Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Michael H. Goerz"'
Publikováno v:
Atoms, Vol 11, Iss 2, p 36 (2023)
The robustness of an atomic fountain interferometer with respect to variations in the initial velocity of the atoms and deviations from the optimal pulse amplitude is examined. We numerically simulate the dynamics of an interferometer in momentum spa
Externí odkaz:
https://doaj.org/article/5fa04f0940aa479f9ce1aa57bc4506df
Publikováno v:
Quantum, Vol 6, p 871 (2022)
We develop a framework of "semi-automatic differentiation" that combines existing gradient-based methods of quantum optimal control with automatic differentiation. The approach allows to optimize practically any computable functional and is implement
Externí odkaz:
https://doaj.org/article/11a14d39a4d545ccac5af0e017b001f2
Publikováno v:
SciPost Physics, Vol 7, Iss 6, p 080 (2019)
We present a new open-source Python package, krotov, implementing the quantum optimal control method of that name. It allows to determine time-dependent external fields for a wide range of quantum control problems, including state-to-state transfer,
Externí odkaz:
https://doaj.org/article/c165cd3701584e94bb2d32038cabf380
Autor:
Sebastian C. Carrasco, Michael H. Goerz, Zeyang Li, Simone Colombo, Vladan Vuletić, Vladimir S. Malinovsky
Publikováno v:
Physical Review Applied. 17
We propose a novel scheme for the generation of optimal squeezed states for Ramsey interferometry. The scheme consists of an alternating series of one-axis twisting pulses and rotations, both of which are straightforward to implement experimentally.
Autor:
Sebastián Carrasco, Michael H. Goerz, Zeyang Li, Simone Colombo, Vladan Vuletic, Vladimir S. Malinovsky
Publikováno v:
Optical and Quantum Sensing and Precision Metrology II.
Publikováno v:
Quantum 2.0 Conference and Exhibition.
We present a computational framework for the direct optimization of measures of metrological gain without analytic gradients, such as the quantum Fisher information. The method is enabled by a new memory-efficient formulation of automatic differentia
Publikováno v:
Optical and Quantum Sensing and Precision Metrology.
We present an analysis of the robustness of existing analytic schemes for the implementation of an atomic fountain interferometer, and develop concepts for improving this robustness through the use of optimal control theory. For an interferometer ope
Publikováno v:
Quantum Information and Measurement VI 2021.
We propose a novel pulse sequence that drives an ensemble of cold trapped atoms into an optimal squeezed state. These states have a fundamental precision scaling proportional to the inverse of the number of atoms.
Publikováno v:
OSA Quantum 2.0 Conference.
We examine the robustness of analytic pulse schemes for atomic fountain interferometers with respect to pulse amplitude and initial velocity distribution and design new robust schemes using numerical optimal control theory.
Autor:
Michael H. Goerz, Daniel Basilewitsch, Fernando Gago-Encinas, Matthias G. Krauss, Christiane P. Koch, Daniel M. Reich, Karl P. Horn
Publikováno v:
SciPost Physics, Vol 7, Iss 6, p 080 (2019)
SciPost Physics
SciPost Physics
We present a new open-source Python package, krotov, implementing the quantum optimal control method of that name. It allows to determine time-dependent external fields for a wide range of quantum control problems, including state-to-state transfer,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c477153cd827f2839142859871bcb46a
http://arxiv.org/abs/1902.11284
http://arxiv.org/abs/1902.11284