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Pauli-Heisenberg Oscillations in Electron Quantum Transport
Karl Thibault1, Julien Gabelli2, Christian Lupien1
1Département de physique, Université de Sherbrooke, Sherbrooke, Québec J1K 2R1, Canada.
Abstract:
We measure the current fluctuations emitted by a normal-metal-insulator-normal-metal tunnel junction with a very wide bandwidth, from 0.3 to 13 GHz, down to very low temperature T=35 mK. This allows us to perform the spectroscopy (i.e., measure the frequency dependence) of thermal noise (no dc bias, variable temperature) and shot noise (low temperature, variable dc voltage bias). Because of the very wide bandwidth of our measurement, we deduce the current-current correlator in the time domain. We observe the thermal decay of this correlator as well as its oscillations with a period h/eV, a direct consequence of the effect of the Pauli and Heisenberg principles in quantum electron transport.
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