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Delayed-response quantum back-action in nanoelectromechanical systems
S. N. Shevchenko, D. G. Rubanov, Franco Nori
We present a semiclassical theory for the delayed response of a quantum dot (QD) to oscillations of a coupled nanomechanical resonator (NR). We prove that the back-action of the QD…
Imaging the dynamics of free-electron Landau states
P. Schattschneider, Th. Schachinger, M. Stöger-Pollach +4
Landau levels and states of electrons in a magnetic field are fundamental quantum entities underlying the quantum-Hall and related effects in condensed matter physics. However, the…
Landau-Zener-Stuckelberg Interferometry of a Single Electron Charge Qubit
J. Stehlik, Y. Dovzhenko, J. R. Petta +4
We perform Landau-Zener-Stuckelberg interferometry on a single electron GaAs charge qubit by repeatedly driving the system through an avoided crossing. We observe coherent destruct…
Strong coupling of a spin qubit to a superconducting stripline cavity
Xuedong Hu, Yu-xi Liu, Franco Nori
We study electron-spin-photon coupling in a single-spin double quantum dot embedded in a superconducting stripline cavity. With an external magnetic field, we show that either a sp…
Distinguishing quantum and classical transport through nanostructures
Neill Lambert, Clive Emary, Yueh-Nan Chen +1
We consider the question of how to distinguish quantum from classical transport through nanostructures. To address this issue we have derived two inequalities for temporal correlat…