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Dresden 2014 – wissenschaftliches Programm

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DY: Fachverband Dynamik und Statistische Physik

DY 5: Focus Session: Feedback Control of Nonlinear Soft and Hard Matter Systems (joint session DY/CPP)

DY 5.7: Hauptvortrag

Montag, 31. März 2014, 17:15–17:45, HÜL 186

Feedback control in quantum transport — •Clive Emary — Department of Physics and Mathematics, University of Hull, United Kingdom

Quantum transport is the study of the movement of electrons in structures small enough that the quantum properties of the electron play an important role. Recent ``full counting statistics'' experiments provide detailed time-resolved information on the stochastic motion of electrons in such structures which, it is proposed, could form the basis of feedback control schemes for quantum transport. Such feedback control has been shown to give rise to many interesting effects such as the suppression of unwanted current fluctuations, the realisation of a nanoelectric Maxwell's daemon and the stabilisation of non-equilibrium pure states.

In this talk I will review these proposals and discuss the effects of delay on such quantum feedback schemes. I will conclude with some perspectives on the use of coherent --- as opposed to measurement-based --- quantum control strategies in the transport setting.

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