Multifractality of random eigenfunctions and generalization of Jarzynski equality

I.M. Khaymovich (), J.V. Koski, O.-P. Saira, V.E. Kravtsov and J.P. Pekola
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I.M. Khaymovich: Low Temperature Laboratory, Aalto University
J.V. Koski: Low Temperature Laboratory, Aalto University
O.-P. Saira: Low Temperature Laboratory, Aalto University
V.E. Kravtsov: Condensed Matter and Statistical Physics Section, Abdus Salam International Center for Theoretical Physics
J.P. Pekola: Low Temperature Laboratory, Aalto University

Nature Communications, 2015, vol. 6, issue 1, 1-6

Abstract: Abstract Systems driven out of equilibrium experience large fluctuations of the dissipated work. The same is true for wavefunction amplitudes in disordered systems close to the Anderson localization transition. In both cases, the probability distribution function is given by the large-deviation ansatz. Here we exploit the analogy between the statistics of work dissipated in a driven single-electron box and that of random multifractal wavefunction amplitudes, and uncover new relations that generalize the Jarzynski equality. We checked the new relations theoretically using the rate equations for sequential tunnelling of electrons and experimentally by measuring the dissipated work in a driven single-electron box and found a remarkable correspondence. The results represent an important universal feature of the work statistics in systems out of equilibrium and help to understand the nature of the symmetry of multifractal exponents in the theory of Anderson localization.

Date: 2015
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DOI: 10.1038/ncomms8010

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