Turkish Journal of PhysicsDecoherence in Ballistic Mesoscopic Interferometers
Département de Physique Théorique, Université de Genève,
CH-1211 Genève 4, Switzerland
Abstract: We provide a theoretical explanation for two recent experiments on decoherence of Aharonov-Bohm oscillations in two- and multi-terminal ballistic rings. We consider decoherence due to charge fluctuations and emphasize the role of charge exchange between the system and the reservoir or nearby gates. A time-dependent scattering matrix approach is shown to be a convenient tool for the discussion of decoherence in ballistic conductors.
Key Words: Charge fluctuations, decoherence
Turk. J. Phys., 27, (2003), 331-342.
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Other articles published in the same issue: Turk. J. Phys.,vol.27,iss.5.