Condensed Matter Physics Seminar
2 p.m., Thursday, May 5, 2005
Room 1201, Physics Building
Suppression of quantum effects by metallic environments
Francisco Guinea
(Institute of Materials Science (CSIC) Madrid, Spain)
Abstract: The effects of the interaction of simple quantum systems
with metallic environments are studied. The induced loss of coherence depends
strongly on details of the interaction. A finite decoherence length at low
energies can be defined for some environments, like the Caldeira-Leggett model,
while not for others, like the dirty three dimensional electron gas.
Applications to quantum dots and wires interacting with metallic gates are also
presented.
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Host: Das Sarma
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