Zobrazeno 1 - 10
of 341
pro vyhledávání: '"Alan C, Santos"'
Publikováno v:
Revista Brasileira de Ensino de Física, Vol 42 (2020)
Abstract In this paper we show how the IBM superconducting chips can be a powerful tool for teaching foundations of quantum mechanics for undergraduate students (for graduates as well, in some cases). To this end, we briefly discuss about the main el
Externí odkaz:
https://doaj.org/article/ad327c54d9654e688f7c5529949066f6
Autor:
Chang-Kang Hu, Roie Dann, Jin-Ming Cui, Yun-Feng Huang, Chuan-Feng Li, Guang-Can Guo, Alan C. Santos, Ronnie Kosloff
Publikováno v:
New Journal of Physics, Vol 23, Iss 9, p 093048 (2021)
An experiment based on a trapped ytterbium ion validates the inertial theorem for the SU (2) algebra. The qubit is encoded within the hyperfine states of the atom and controlled by RF fields. The inertial theorem generates analytical solutions for no
Externí odkaz:
https://doaj.org/article/3c176653925f4cf6a1e57977f4c37758
Publikováno v:
New Journal of Physics, Vol 22, Iss 8, p 083007 (2020)
The performance of quantum technologies that use entanglement and coherence as a resource is highly limited by the effects of decoherence due to their interaction with some environment. In particular, it is important to take into account situations w
Externí odkaz:
https://doaj.org/article/f72e016cf2e8400da42225760b826925
Autor:
Alan C. Santos, R. Bachelard
In this paper we show how to generate efficiently entanglement between two artificial giant atoms with photon-mediated interactions in a waveguide. Taking advantage of the adjustable decay processes of giant atoms into the waveguide, and of the inter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::33e3fd30da9b69287e01c606ffddb5f6
http://arxiv.org/abs/2207.04696
http://arxiv.org/abs/2207.04696
Publikováno v:
Poulsen, K, Santos, A C, Kristensen, L B & Zinner, N T 2022, ' Entanglement-enhanced quantum rectification ', Physical Review A, vol. 105, no. 5, 052605 . https://doi.org/10.1103/PhysRevA.105.052605
Quantum mechanics dictates the band-structure of materials that is essential for functional electronic components. With increased miniaturization of devices, it becomes possible to exploit the full potential of quantum mechanics through the principle
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::855ed2598b399cb501fd5e3c318ae730
https://pure.au.dk/ws/files/269977206/2101.04124v2.pdf
https://pure.au.dk/ws/files/269977206/2101.04124v2.pdf
Publikováno v:
Physical Review E. 105
One of the most important devices emerging from quantum technology are quantum batteries. However, self-discharging, the process of charge wasting of quantum batteries due to decoherence phenomenon, limits their performance, measured by the concept o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::81e5700a5d6043c67f454ee2093255d8
https://doi.org/10.1103/physreve.105.054115
https://doi.org/10.1103/physreve.105.054115
Work extraction protocol is always a significant issue in the context of quantum batteries, in which the notion of ergotropy is used to quantify a particular amount of energy that can be extracted through unitary processes. Given the total amount of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::53e475867ba2ec4b42f00beba8acdace
http://arxiv.org/abs/2107.01828
http://arxiv.org/abs/2107.01828
Considering the paradigmatic case of a cloud of two-level atoms interacting through common vacuum modes, we show how cooperative spontaneous emission, which is at the origin of superradiance, leads the system to long-lived entangled states at late ti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::62cd6991c99a91171ada221ea267f4ec
The study of advanced quantum devices for energy storage has attracted the attention of the scientific community in the past few years. Although several theoretical progresses have been achieved recently, experimental proposals of platforms operating
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cea76d57d04abea59078fdaefd209ccb
Autor:
Alan C. Santos
Devices that use quantum advantages for storing energy in the degree of freedom of quantum systems have drawn attention due to their properties of working as quantum batteries. However, one can identify a number of problems that need to be adequately
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::371479dd220faed3acb6b4e89a7ac272
http://arxiv.org/abs/2012.11996
http://arxiv.org/abs/2012.11996