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Superconducting quantum heat engines and refrigerators

Total Cost €


EC-Contrib. €






Project "SQH" data sheet

The following table provides information about the project.


Organization address
address: OTAKAARI 1
city: ESPOO
postcode: 2150

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Finland [FI]
 Total cost 2˙418˙002 €
 EC max contribution 2˙418˙002 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2016-ADG
 Funding Scheme ERC-ADG
 Starting year 2017
 Duration (year-month-day) from 2017-10-01   to  2022-09-30


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    AALTO KORKEAKOULUSAATIO SR FI (ESPOO) coordinator 2˙418˙002.00


 Project objective

The aim of the proposed work is to realize experimentally the first genuinely quantum mechanical refrigerator/heat engine in the solid state, and test whether one can boost its performance by information/feedback, optimized control, and merely by exploiting the quantum coherences vs the classical dynamics. To achieve this goal, we will investigate experimentally and theoretically the thermodynamics of open quantum systems. For the experimental realization, we will develop calorimetry with superior energy and time resolution and build competitive quantum circuits based on superconducting quantum bits (qubits). In order to achieve the ultimate goal, we will, for the first time, implement a test for quantum fluctuation relations in a truly open quantum system, and demonstrate an implementation of the so-called quantum Maxwell's Demon by controlling a qubit in an optimal way. In our studies we will utilize the state-of-the-art nanofabrication and measurement facilities of the national OtaNano research infrastructure that I coordinate. This project presents a serious effort to investigate experimentally open quantum systems from the point of view of thermodynamics. It brings the classical field of research, thermodynamics, to the quantum regime, where experiments are in their infancy. Beyond the direct fundamental significance of this endeavor, the outcome of this project will technologically benefit the performance of both current and novel devices that is often limited by our present understanding of fluctuation relations and the characteristics of open quantum systems.


year authors and title journal last update
List of publications.
2018 Bayan Karimi, Jukka P. Pekola
Noninvasive Thermometer Based on the Zero-Bias Anomaly of a Superconducting Junction for Ultrasensitive Calorimetry
published pages: , ISSN: 2331-7019, DOI: 10.1103/PhysRevApplied.10.054048
Physical Review Applied 10/5 2019-06-06
2018 F. Brange, P. Samuelsson, B. Karimi, J. P. Pekola
Nanoscale quantum calorimetry with electronic temperature fluctuations
published pages: , ISSN: 2469-9950, DOI: 10.1103/physrevb.98.205414
Physical Review B 98/20 2019-06-06
2018 Alberto Ronzani, Bayan Karimi, Jorden Senior, Yu-Cheng Chang, Joonas T. Peltonen, ChiiDong Chen, Jukka P. Pekola
Tunable photonic heat transport in a quantum heat valve
published pages: 991-995, ISSN: 1745-2473, DOI: 10.1038/s41567-018-0199-4
Nature Physics 14/10 2019-06-06
2018 Paolo Andrea Erdman, Bibek Bhandari, Rosario Fazio, Jukka P. Pekola, Fabio Taddei
Absorption refrigerators based on Coulomb-coupled single-electron systems
published pages: , ISSN: 2469-9950, DOI: 10.1103/PhysRevB.98.045433
Physical Review B 98/4 2019-06-06
2019 Shilpi Singh, Édgar Roldán, Izaak Neri, Ivan M. Khaymovich, Dmitry S. Golubev, Ville F. Maisi, Joonas T. Peltonen, Frank Jülicher, Jukka P. Pekola
Extreme reductions of entropy in an electronic double dot
published pages: , ISSN: 2469-9950, DOI: 10.1103/PhysRevB.99.115422
Physical Review B 99/11 2019-06-06
2019 P. A. Erdman, J. T. Peltonen, B. Bhandari, B. Dutta, H. Courtois, R. Fazio, F. Taddei, J. P. Pekola
Nonlinear thermovoltage in a single-electron transistor
published pages: , ISSN: 2469-9950, DOI: 10.1103/PhysRevB.99.165405
Physical Review B 99/16 2019-06-06
2018 Brecht Donvil, Paolo Muratore-Ginanneschi, Jukka P. Pekola, Kay Schwieger
Model for calorimetric measurements in an open quantum system
published pages: , ISSN: 2469-9926, DOI: 10.1103/PhysRevA.97.052107
Physical Review A 97/5 2019-06-06
2019 J.P. Pekola, I.M. Khaymovich
Thermodynamics in Single-Electron Circuits and Superconducting Qubits
published pages: 193-212, ISSN: 1947-5454, DOI: 10.1146/annurev-conmatphys-033117-054120
Annual Review of Condensed Matter Physics 10/1 2019-06-06
2018 Jukka P. Pekola, Bayan Karimi
Quantum Noise of Electron–Phonon Heat Current
published pages: 373-379, ISSN: 0022-2291, DOI: 10.1007/s10909-018-1854-y
Journal of Low Temperature Physics 191/5-6 2019-06-07

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