Projects per year
We discuss the energy distribution of free-electron Fermi-gas, a problem with a textbook solution of Gaussian energy fluctuations in the limit of a large system. We find that for a small system, characterized solely by its heat capacity C, the distribution can be solved analytically, and it is both skewed and it vanishes at low energies, exhibiting a sharp drop to zero at the energy corresponding to the filled Fermi sea. The results are relevant from the experimental point of view, since the predicted non-Gaussian effects become pronounced when C/kB 103 (kB is the Boltzmann constant), a regime that can be easily achieved for instance in mesoscopic metallic conductors at sub-kelvin temperatures.
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- 1 Finished
Golubev, D., Ronzani, A., Volovik, G., Westström, A., Tuoriniemi, J., Najafi Jabdaraghi, R. (., Pekola, J., Pöyhönen, K., Singh, S., Feshchenko, A., Kauppila, V., Senior, J., Viisanen, K., Wang, L., Khan, R., Padurariu, C. & Lähteenmäki, P.
01/01/2015 → 31/12/2017
Project: Academy of Finland: Other research funding