Feedback stabilization of pure states in quantum transport
arXiv:1103.2710 · doi:10.1103/PhysRevB.84.085302
Abstract
We propose a feedback control scheme for generating and stabilizing pure states of transport devices, such as charge qubits, under non-equilibrium conditions. The purification of the device state is conditioned on single electron jumps and leaves a clear signal in the full counting statistics which can be used to optimize control parameters. As an example of our control scheme, we are presenting the stabilization pure transport states in a double quantum dot setup with the inclusion of phonon dephasing.
7 pages, 5 figures
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- Stochastic feedback control of quantum transport to realize a dynamical ensemble of two nonorthogonal pure states
- Wiseman-Milburn Control for the Lipkin-Meshkov-Glick Model
- Modelling and Control of Quantum Measurement Induced Backaction in Double Quantum Dots
- Coherent control in quantum transport: amplification, filtering and switching at finite bias