Decoherence-Driven Quantum Transport

Decoherence-driven quantum transport.

We propose a new mechanism to generate a dc current of particles at zero bias based on a noble interplay between coherence and decoherence. We show that a dc current arises if the transport process in one direction is maintained coherent while the process in the opposite direction is incoherent. We provide possible implementations of the idea using an atomic Michelson interferometer and a ring ...

Quantum Szillard engine revisited: decoherence driven atomic transport

Quantum Chaos , Transport , and Decoherence in Atom

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Decoherence-assisted transport in quantum networks

It is shown that energy transfer in a homogeneous fully connected quantum network is assisted by a decohering interaction with environmental spins. Analytic expressions for the transfer probabilities are obtained for the zero temperature case, and the effect is shown to persist at physiological temperatures. This model of decoherence-assisted energy transfer is applied to the Fenna–Matthews–Ols...

Quantum-bath-driven decoherence of mixed spin systems

S. J. Balian,1 Gary Wolfowicz,2,3 John J. L. Morton,2,4 and T. S. Monteiro1,* 1Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom 2London Centre for Nanotechnology, University College London, London WC1H 0AH, United Kingdom 3Department of Materials, Oxford University, Oxford OX1 3PH, United Kingdom 4Department of Electronic and Electric...