Projekteja vuodessa
Abstrakti
Quantum thermodynamics is emerging both as a topic of fundamental research and as a means to understand and potentially improve the performance of quantum devices1–10. A prominent platform for achieving the necessary manipulation of quantum states is superconducting circuit quantum electrodynamics (QED)11. In this platform, thermalization of a quantum system12–15 can be achieved by interfacing the circuit QED subsystem with a thermal reservoir of appropriate Hilbert dimensionality. Here we study heat transport through an assembly consisting of a superconducting qubit16 capacitively coupled between two nominally identical coplanar waveguide resonators, each equipped with a heat reservoir in the form of a normal-metal mesoscopic resistor termination. We report the observation of tunable photonic heat transport through the resonator–qubit–resonator assembly, showing that the reservoir-to-reservoir heat flux depends on the interplay between the qubit–resonator and the resonator–reservoir couplings, yielding qualitatively dissimilar results in different coupling regimes. Our quantum heat valve is relevant for the realization of quantum heat engines17 and refrigerators, which can be obtained, for example, by exploiting the time-domain dynamics and coherence of driven superconducting qubits18,19. This effort would ultimately bridge the gap between the fields of quantum information and thermodynamics of mesoscopic systems.
Alkuperäiskieli | Englanti |
---|---|
Sivut | 991–995 |
Sivumäärä | 5 |
Julkaisu | Nature Physics |
Vuosikerta | 14 |
DOI - pysyväislinkit | |
Tila | Julkaistu - 2018 |
OKM-julkaisutyyppi | A1 Julkaistu artikkeli, soviteltu |
Sormenjälki
Sukella tutkimusaiheisiin 'Tunable photonic heat transport in a quantum heat valve'. Ne muodostavat yhdessä ainutlaatuisen sormenjäljen.-
SQH: Superconducting quantum heat engines and refrigerators
Gubaydullin, A., Peltonen, J., Pekola, J., Marin Suarez, M., Blanchet, F., Chang, Y., Mannila, E., Lvov, D., Karimi, B., Mäkinen, I., Singh, S., Senior, J., Wang, L., Subero Rengel, D., Thomas, G. & Upadhyay, R.
27/09/2017 → 30/09/2023
Projekti: EU: ERC grants
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QTF: Kvanttiteknologian huippuyksikkö
Golubev, D., Pekola, J., Marin Suarez, M., Mannila, E., Blanchet, F., Maillet, O. & Senior, J.
01/01/2018 → 31/12/2020
Projekti: Academy of Finland: Other research funding
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QuESTech: QUantum Electronics Science and TECHnology training
Karimi, B., Pekola, J. & Peltonen, J.
01/01/2018 → 31/12/2021
Projekti: EU: Framework programmes funding
Laitteet
Lehtileikkeet
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Qubits as valves: Controlling quantum heat engines
Bayan Karimi, Joonas Peltonen & J.P. Pekola
17/07/2018 → 18/07/2018
2 kohdetta/ Medianäkyvyys
Lehdistö/media: Esiintyminen mediassa