SHOT NOISES IN A CORRELATED TUNNELING CURRENT

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Abstract
An analytical expression for shot noises in a correlated sequential tunneling current has been derived by solving the Master equation exactly. The existing result for the simplest case of Pauli correlation is easily reproduced. Our theory is applied to the Coulomb blockade single-electron tunneling system with two tunnel junctions. Given capacitances and resistances of the system, both the suppressed zero-frequency shot noise and the entire finite-frequency noise spectrum are obtained, which are much more complicated than the simplest Pauli correlation case. Our theoretical predictions, after being confirmed experimentally, will introduce the noise spectroscopy as a tool to investigate correlated tunneling current.

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