Abstract
We calculate the tunnelling density of states (TDoS) for a quantum dot in the Coulomb-blockade regime, using a functional integral representation with allowing correctly for the charge quantisation. We show that in addition to the well-known gap in the TDoS in the Coulomb-blockade valleys, there is a suppression of the TDoS at the peaks. We show that such a suppression is necessary in order to get the correct result for the peak of the differential conductance through an almost close quantum dot.
Original language | English |
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Pages (from-to) | 109-114 |
Number of pages | 6 |
Journal | EPL |
Volume | 76 |
Issue number | 1 |
DOIs | |
Publication status | Published - Oct 2006 |
Bibliographical note
Tunnelling density of states at Coulomb-blockadepeaks. N. Sedlmayr et al 2006 EPL 76 109 © EDP Sciences