Zobrazeno 1 - 10
of 362
pro vyhledávání: '"Jukka P Pekola"'
Publikováno v:
Journal of Physics Communications, Vol 7, Iss 1, p 015005 (2023)
The study of quantum heat transport in superconducting circuits is significant for further understanding the connection between quantum mechanics and thermodynamics, and for possible applications for quantum information. The first experimental realis
Externí odkaz:
https://doaj.org/article/e16a08e6509d4a77ba2c94e0163e5886
Autor:
Klaara L Viisanen, Samu Suomela, Simone Gasparinetti, Olli-Pentti Saira, Joachim Ankerhold, Jukka P Pekola
Publikováno v:
New Journal of Physics, Vol 17, Iss 5, p 055014 (2015)
We discuss work performed on a quantum two-level system coupled to multiple thermal baths. To evaluate the work, a measurement of photon exchange between the system and the baths is envisioned. In a realistic scenario, some photons remain unrecorded
Externí odkaz:
https://doaj.org/article/0770279e020c4ceabae4b03fa2da2cea
Autor:
Azat Gubaydullin, George Thomas, Dmitry S. Golubev, Dmitrii Lvov, Joonas T. Peltonen, Jukka P. Pekola
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-10 (2022)
Quantum heat transport devices are currently intensively studied. Here, the authors report the photonic heat transport modulated by superconducting qubit in a three-terminal device. Flux dependent heat power correlates with microwave measurements.
Externí odkaz:
https://doaj.org/article/b29d81374d3a42c39738a5ab7d3a7063
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-6 (2020)
Quantum heat transport may be realized in superconducting circuits which has to rely on magnetic flux as a sole control parameter. Here, the authors report electric field tuning of photonic thermal conductance and observe heat flow oscillations in a
Externí odkaz:
https://doaj.org/article/2d484ef693bc4a5f90ebeff3f99382ea
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-6 (2020)
Quantum calorimeters can provide time-resolved measurement of single photons by converting them to detectable temperature changes. Here the authors demonstrate a calorimeter that reaches the lower bound of temperature resolution, determined by the co
Externí odkaz:
https://doaj.org/article/3564d825d3904226823b9fa84c803547
Autor:
Jukka P. Pekola, Bayan Karimi
Publikováno v:
Physical Review X, Vol 12, Iss 1, p 011026 (2022)
We describe a qubit linearly coupled to a heat bath, either directly or via a cavity. The main focus of the paper is on calorimetric detection in a realistic circuit, specifically a solid-state qubit coupled to a resistor as an absorber. The bath in
Externí odkaz:
https://doaj.org/article/72a4c2e9672048c0b86560d701ac46a5
We use trajectory averaging to show that the energy dissipated in the nonequilibrium energy-state transitions of a driven two-state system satisfies a fluctuation-dissipation relation. This connection between the average energy dissipation induced by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::86424144df18901e1457fe71f5fab9e6
https://aaltodoc.aalto.fi/handle/123456789/121474
https://aaltodoc.aalto.fi/handle/123456789/121474
Accuracy of single-electron currents produced in hybrid turnstiles at high operation frequencies is, among other errors, limited by electrons tunnelling in the wrong direction. Increasing the barrier transparency between the island and the leads, and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::95a61cf4e8a3b6b80ede870a4446da96
https://aaltodoc.aalto.fi/handle/123456789/121214
https://aaltodoc.aalto.fi/handle/123456789/121214
Publikováno v:
Pekola, J P, Praks, E, Yurttagül, N & Karimi, B 2022, ' Influence of device non-uniformities on the accuracy of Coulomb blockade thermometry ', Metrologia, vol. 59, no. 4, 045009 . https://doi.org/10.1088/1681-7575/ac79e8
openaire: EC/H2020/824109/EU//EMP Funding Information: We thank Joonas T Peltonen for useful discussions. This work was supported by Academy of Finland Grant 312057 (QTF Centre of Excellence), European Microkelvin Platform (EMP, No. 824109 EU Horizon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fed10e43354ff8775c26b8f22824c81a
https://doi.org/10.1088/1681-7575/ac79e8
https://doi.org/10.1088/1681-7575/ac79e8
Funding Information: We thank Dmitry Golubev for many useful discussions. This work was supported by Academy of Finland (Grant No. 312057). Publisher Copyright: © 2022 American Physical Society. We analyze theoretically the properties of the recentl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::87ba2a185957a8b29843e1a757530412
http://hdl.handle.net/10138/350143
http://hdl.handle.net/10138/350143