Photonic heat transport in three terminal superconducting circuit

Azat Gubaydullin*, George Thomas, Dmitry S. Golubev, Dmitrii Lvov, Joonas T. Peltonen, Jukka P. Pekola

*Tämän työn vastaava kirjoittaja

Tutkimustuotos: LehtiartikkeliArticleScientificvertaisarvioitu

11 Sitaatiot (Scopus)
49 Lataukset (Pure)

Abstrakti

We report an experimental realization of a three-terminal photonic heat transport device based on a superconducting quantum circuit. The central element of the device is a flux qubit made of a superconducting loop containing three Josephson junctions, which can be tuned by magnetic flux. It is connected to three resonators terminated by resistors. By heating one of the resistors and monitoring the temperatures of the other two, we determine photonic heat currents in the system and demonstrate their tunability by magnetic field at the level of 1 aW. We determine system parameters by performing microwave transmission measurements on a separate nominally identical sample and, in this way, demonstrate clear correlation between the level splitting of the qubit and the heat currents flowing through it. Our experiment is an important step towards realization of heat transistors, heat amplifiers, masers pumped by heat and other quantum heat transport devices.

AlkuperäiskieliEnglanti
Artikkeli1552
Sivut1-10
Sivumäärä10
JulkaisuNature Communications
Vuosikerta13
Numero1
DOI - pysyväislinkit
TilaJulkaistu - 23 maalisk. 2022
OKM-julkaisutyyppiA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

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