Administration of EMP-related Publications

overview

year 2020
author(s) Jorden Senior, Azat Gubaydullin, Bayan Karimi, Joonas T. Peltonen, Joachim Ankerhold, Jukka P. Pekola
title Heat rectification via a superconducting artificial atom
document type Paper
source Commun Phys 3, 40 (2020)
doi 10.1038/s42005-020-0307-5
arxiv https://arxiv.org/abs/1908.05574
EMP/Horizon2020 This publication does not include a EMP/Horizon2020 acknowledgement.
abstract

In developing technologies based on superconducting quantum circuits, the need to control and route heating is a significant challenge in the experimental realisation and operation of these devices. One of the more ubiquitous devices in the current quantum computing toolbox is the transmon-type superconducting quantum bit, embedded in a resonator-based architecture. In the study of heat transport in superconducting circuits, a versatile and sensitive thermometer is based on studying the tunnelling characteristics of superconducting probes weakly coupled to a normal-metal island. Here we show that by integrating superconducting quantum bit coupled to two superconducting resonators at different frequencies, each resonator terminated (and thermally populated) by such a mesoscopic thin film metal island, one can experimentally observe magnetic flux-tunable photonic heat rectification between 0 and 10%.