Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Quentin Bouton"'
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-7 (2021)
Designing reliable nanoscale quantum-heat engines achieving high efficiency, high power and high stability is of fundamental and practical interest. Here, the authors report the realization of such a quantum machine using individual neutral Cs atoms
Externí odkaz:
https://doaj.org/article/6cef506e3293473388fd0464d5c06575
Publikováno v:
PRX Quantum, Vol 3, Iss 4, p 040334 (2022)
Heat engines usually operate by exchanging heat with thermal baths at different (positive) temperatures. Nonthermal baths may, however, lead to a significant performance boost. Here, we experimentally analyze the power output of a single-atom quantum
Externí odkaz:
https://doaj.org/article/8f4aa462b4964d859267b1ec9c84d7d8
Autor:
Daniel Mayer, Felix Schmidt, Steve Haupt, Quentin Bouton, Daniel Adam, Tobias Lausch, Eric Lutz, Artur Widera
Publikováno v:
Physical Review Research, Vol 2, Iss 2, p 023245 (2020)
Characterizing and optimizing thermodynamic processes far from equilibrium is a challenge. This is especially true for nanoscopic systems made of a few particles. We here theoretically and experimentally investigate the nonequilibrium dynamics of a g
Externí odkaz:
https://doaj.org/article/5b12d14f6ee74f04972e62a6e02b516f
Autor:
Quentin Bouton, Jens Nettersheim, Daniel Adam, Felix Schmidt, Daniel Mayer, Tobias Lausch, Eberhard Tiemann, Artur Widera
Publikováno v:
Physical Review X, Vol 10, Iss 1, p 011018 (2020)
Quantum probes are atomic sized devices mapping information of their environment to quantum-mechanical states. By improving measurements and at the same time minimizing perturbation of the environment, they form a central asset for quantum technologi
Externí odkaz:
https://doaj.org/article/63aab87e751d4172af64a3e1e1672959
Autor:
Romain Gautier, Mohamed Guessoum, Leonid A. Sidorenkov, Quentin Bouton, Arnaud Landragin, Remi Geiger
A rotating interferometer with paths that enclose a physical area exhibits a phase shift proportional to this area and to the rotation rate of the frame. Understanding the origin of this so-called Sagnac effect has played a key role in the establishm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1d820b8f5b56d5cfd437e1c5d3863331
We report Ramsey spectroscopy on the clock states of individual Cs impurities immersed in an ultracold Rb bath. We record both the interaction-driven phase evolution and the decay of fringe contrast of the Ramsey interference signal to obtain informa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6033dab337609387276992e2f80d3460
http://arxiv.org/abs/2105.03331
http://arxiv.org/abs/2105.03331
Publikováno v:
Nature Communications
Nature Communications, Vol 12, Iss 1, Pp 1-7 (2021)
Nature Communications, Vol 12, Iss 1, Pp 1-7 (2021)
Quantum heat engines are subjected to quantum fluctuations related to their discrete energy spectra. Such fluctuations question the reliable operation of thermal machines in the quantum regime. Here, we realize an endoreversible quantum Otto cycle in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ab2ff7d1168037c27008885682fb94c2
Autor:
Artur Widera, Steve Haupt, Daniel Mayer, Daniel Adam, Quentin Bouton, Tobias Lausch, Eric Lutz, Felix Schmidt
Characterizing and optimizing thermodynamic processes far from equilibrium is a challenge. This is especially true for nanoscopic systems made of few particles. We here theoretically and experimentally investigate the nonequilibrium dynamics of a gas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::350cf6e170c7641870b64172091c2074
http://arxiv.org/abs/1901.06188
http://arxiv.org/abs/1901.06188
Autor:
Daniel Adam, Eberhard Tiemann, Felix Schmidt, Tobias Lausch, Artur Widera, Quentin Bouton, Jens Nettersheim, Daniel Mayer
Publikováno v:
Web of Science
We employ collisions of individual atomic cesium (Cs) impurities with an ultracold rubidium (Rb) gas to probe atomic interaction with hyperfine- and Zeeman-state sensitivity. Controlling the Rb bath's internal state yields access to novel phenomena o
Autor:
Daniel Mayer, Artur Widera, Quentin Bouton, Nicolas Spethmann, Daniel Adam, Tobias Lausch, Felix Schmidt
Publikováno v:
Physical Review Letters. 121
We report on spin dynamics of individual, localized neutral impurities immersed in a Bose-Einstein condensate. Single Cesium atoms are transported into a cloud of Rubidium atoms, thermalize with the bath, and the ensuing spin-exchange between localiz