MESOSCOPIC PHYSICS and QUANTUM COMPUTING
Quantum Transport and Interactions in Mesoscopic Conductors at milli-Kelvin Temperatures
This research addresses experimentally several inter-related fundamental problems of electron transport in low-dimensional conductors:
The problem of intrinsic and extrinsic limitations on the dephasing rate in low-dimensional conductors is crucial for many areas of condensed matter physics, as well as for the solid state implementation of quantum computing. Further progress in this field is associated with dephasing measurements at milli-Kelvin temperatures. Our experiments are aimed at better understanding of dephasing mechanisms (including the dephasing by external high-frequency electromagnetic noise), and extending the temperature range of dephasing measurements in 1d and 2d systems down to T ~ 20 mK by means of thorough suppression of external noise (elimination of noise-induced dephasing), and optimization of electron-phonon interaction (elimination of hot-electron effects).
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