IQIM Postdoctoral and Graduate Student Seminar

Wednesday June 17, 2015 10:00 AM

Thermodynamics with electrons in a circuit

Speaker: Jukka Pekola, Low Temperature Laboratory, Aalto University School of Science
Location: Steele 125

Abstract: I will discuss our experiments on stochastic thermodynamics using single electrons [1]. We have realized a Maxwell's demon in form of a Szilard's engine for an electron [2,3]. In this measurement we manage to convert information to energy at a rate of about 75% of kT log(2) in a cycle on the average. I will also discuss a recent experiment on an "all-in-one" autonomous Maxwell's demon. In the final part of the talk I present our on-going activity on quantum thermodynamics in superconducting circuits [4,5].

[1] O.-P. Saira, Y. Yoon, T. Tanttu, M. Möttönen, D.V. Averin, and J.P. Pekola, Test of Jarzynski and Crooks fluctuation relations in an electronic system, Phys. Rev. Lett. 109, 180601 (2012).
[2] Jonne V. Koski, Ville F. Maisi, Jukka P. Pekola, and Dmitri V. Averin, Experimental realization of a Szilard engine with a single electron, PNAS 111, 13786 (2014).
[3] Jonne V. Koski, Ville F. Maisi, Takahiro Sagawa, and Jukka P. Pekola, Experimental study of mutual information in a Maxwell Demon, Phys. Rev. Lett. 113, 030601 (2014).
[4] J. P. Pekola, Towards quantum thermodynamics in electronic circuits, Nature Physics 11, 118–123 (2015).
[5] S. Gasparinetti, K. L. Viisanen, O.-P. Saira, T. Faivre, M. Arzeo, M. Meschke, and J. P. Pekola, Fast electron thermometry towards ultra-sensitive calorimetric detection, Phys. Rev. Applied 3, 014007 (2015).

 

Series IQIM Postdoctoral and Graduate Student Seminar Series

Contact: Marcia Brown at 626-395-4013 marciab@caltech.edu