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Phase readout of a charge qubit capacitively coupled to an open double quantum dot

Kreisbeck, Christoph ; Kaiser, Franz J. ; Kohler, Sigmund



Abstract

We study the dynamics of a charge qubit that is capacitively coupled to an open double quantum dot. Depending on the qubit state, the transport through the open quantum dot may be resonant or off-resonant, such that the qubit affects the current through the open double dot. We relate the initial qubit state to the magnitude of an emerging transient current peak. The relation between these ...

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