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7 papers · 1 filter
On Thermometer Operation of Ultrasmall Tunnel Junctions
H. -O. Müller, A. Hädicke, W. Krech
The temperature dependence of the I-V characteristics of many single-electron tunneling devices enable thermometer operation of these systems. We investigate two normal conducting…
Coherent States of Two-dimensional Josephson Junction Networks
W. Krech, K. Yu. Platov
We have investigated numerically the phase--locking behavior of two-dimensional Josephson junction arrays,taking into account a finite inductance () of the un…
Microwave--Driven SET--Box with Superconducting Island
A. Hädicke, W. Krech
The effect of a high--frequency microwave irradiation on the averaged stationary charge in a single--electron tunneling box (SET--box) with superconducting island is investigated.…
Phase-Locking in Strongly Coupled Squid Cells
M. Basler, W. Krech, K. Yu. Platov
Within the RSJ model we performed an analytical and numerical investigation of SQUID cells consisting of two Josephson junctions shunted by an extremely small inductance leading to…
Elastic Co--Tunneling in a 1D Quantum Hole Approach
Heinz-Olaf Muller, Andreas Hadicke, Wolfram Krech
The influence of the phases of tunneling matrix elements on the rate of the elastic co--tunneling at an ultrasmall normal--conducting double--junction is studied in a simple quantu…
How to calculate a decoherence matrix numerically and the microscopic mechanism for decoherence in the Caldeira-Leggett model
Hans-Jürgen Pohle
A central object in the interpretation of quantum mechanics of closed systems with decoherent histories is the decoherence matrix. But only for a very small number of models one is…