(1) Departamento de Teoría de la Materia Condensada, Instituto de Ciencia de Materiales de Madrid, CSIC, 28049 Cantoblanco, Madrid, Spain;(2) Department of Physics, UMIST, P.O. Box 88, M60 1QD Manchester, UK
Abstract:
We present a formalism to calculate frequency dependent electron current noise for transport through two-level systems (such as coupled quantum dots or Cooper-pair boxes) in presence of dissipation. Perturbation theories in various regimes are formulated within a matrix scheme in Laplace scheme which we evaluate in detail both for weak and strong coupling to a bosonic environment.Received: 12 December 2003, Published online: 10 August 2004PACS:
72.70. + m Noise processes and phenomena - 73.23.Hk Coulomb blockade; single-electron tunneling