Coulomb Blockade with Dispersive Interfaces

Details Coulomb Blockade with Dispersive Interfaces Coulomb Blockade with Dispersive Interfaces

2002-06-17

arxiv.org/abs/cond-mat/0206302v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages

Scientific paper

10.1103/PhysRevLett.89.236801

What quantity controls the Coulomb blockade oscillations if the dot--lead conductance is essentially frequency--dependent ? We argue that it is the ac dissipative conductance at the frequency given by the effective charging energy. The latter may be very different from the bare charging energy due to the interface--induced capacitance (or inductance). These observations are supported by a number of examples, considered from the weak and strong coupling (perturbation theory vs. instanton calculus) perspectives.

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