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Email: fnimry@weizmann.ac.il
 Title: Professor
 Tel: +972-8-934-4064
 Fax:
+972-8-934-4477  Building: K.B. Weissman
 Room: P240
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Research Interests:
Mesoscopic Physics
This is a relatively new branch of condensed-matter physics, of which I have been one of the originators. It is concerned with how the behavior of systems whose size is in between micro- and macroscopic, crosses over between these two regimes. These systems can be handled and addressed by more or less usual macroscopic methods, but their behavior may still show quantum effects. Among the interesting new effects found are: Quantization of various conductances, with the universal unit (e2/h), Aharonov-Bohm (AB) oscillations in the conductance of mesosscopic rings and "persistent currents" flowing without dissipation in such systems in the normal (non superconducting) state. The research [see ref. 1] is strongly coupled with experimental work at the Braun Submicron Center, which, together with Prof. Moti Heiblum, I was instrumental in founding.Some of the main themes of my research are:
- Effects of electron-electron interaction on localization of electron in disordered systems and spectral correlations (with collaboration with U. Smilansky and with P. Woelfle of Karlsruhe and with J.-L Pichard of Saclay and O. Bohigas of Orsay). This subject is intimately related to the insulator-normal metal-superconductor phase diagram of matter (some of this work is in collaboration with A. Aharony and O. Entin-Wohlman at TAU).
- The major subject of Dephasing of Quantum interference in mesoscopics, especially at low temperatures. Some of the work is in collaboration with Y. Levinson, Y. Levit and A. Stern, and with M. Heiblum's experimental group. See for example [2].
- Low dimensional mesoscopic structures, interferometers, resonators and "quantum dots". This includes thermodynamic and transport [3] phenomena. Some of this work is in collaboration with A. Aharony and O. Entin-Wohlman at TAU and with P. Silvestrov (Novosibirsk).
- Normal-superconducting inrtefaces and the proximity effects, in collaboration with Y. Levinson and with Z. Ovadyahu (HU), and G. Schoen and C. Bruder (Karlsruhe and Basel).
References
- Y. Imry, Introduction to Mesoscopic Physics, Oxford University Press, 1997.
- Y. Imry, Mesoscopic Physics and the Fundamentals of Quantum Mecanics, Physica Scripta (Proceedings of the Nobel Symposium), T76. 171 (1998).
- Y. Imry and Y. Landauer, Conductance is Transmission, Reviews of Modern Physics, Centennial Issue, 71, S306 (1999).