We investigate the quantum ratchet effect under the influence of weak dissipation which we treat within a Floquet-Markov master equation approach. A ratchet current emerges when all relevant symmetries are violated. Using time-reversal symmetric driving we predict a purely dissipation-induced quantum ratchet current. This directed quantum transport results from bath-induced superpositions of non-transporting Floquet states
Rectification phenomena in two specific mesoscopic systems are reviewed. The phenomenon is called ra...
We investigate the existence of the pure spin ratchet effect in a dissipative quasi-one-dimensional ...
Quantum Brownian motion in ratchet potentials is investigated by means of an approach based on a dua...
A duality relation between the long-time dynamics of a quantum Brownian particle in a tilted ratchet...
In this thesis, ratchet systems operating in the quantum regime are investigated. Ratchet systems, a...
We investigate directed motion in nonadiabatically rocked ratchet systems sustaining few bands below...
We demonstrate that the tunnel oscillations of a biased double quantum dot can be employed as drivin...
Reimann P, Grifoni M, Hänggi P. Quantum ratchets. Physical Review Letters. 1997;79(1):10-13.We inves...
We rigorously investigate the quantum dissipative dynamics of a ratchet system de-scribed by a perio...
In a previous work, we described transport in a classical, externally driven, overdamped ratchet. A ...
Ratchets are devices that are able to rectify an otherwise oscillatory behavior by exploiting an asy...
We study the quantum version of a tilting and flashing Hamiltonian ratchets, consisting of a periodi...
Ratchets are devices that are able to rectify an otherwise oscillatory behavior by exploiting an asy...
We experimentally investigate the phenomenon of a quantum ratchet created by exposing a Bose-Einstei...
We control the current of a single-particle quantum ratchet by designing ramping schemes for experim...
Rectification phenomena in two specific mesoscopic systems are reviewed. The phenomenon is called ra...
We investigate the existence of the pure spin ratchet effect in a dissipative quasi-one-dimensional ...
Quantum Brownian motion in ratchet potentials is investigated by means of an approach based on a dua...
A duality relation between the long-time dynamics of a quantum Brownian particle in a tilted ratchet...
In this thesis, ratchet systems operating in the quantum regime are investigated. Ratchet systems, a...
We investigate directed motion in nonadiabatically rocked ratchet systems sustaining few bands below...
We demonstrate that the tunnel oscillations of a biased double quantum dot can be employed as drivin...
Reimann P, Grifoni M, Hänggi P. Quantum ratchets. Physical Review Letters. 1997;79(1):10-13.We inves...
We rigorously investigate the quantum dissipative dynamics of a ratchet system de-scribed by a perio...
In a previous work, we described transport in a classical, externally driven, overdamped ratchet. A ...
Ratchets are devices that are able to rectify an otherwise oscillatory behavior by exploiting an asy...
We study the quantum version of a tilting and flashing Hamiltonian ratchets, consisting of a periodi...
Ratchets are devices that are able to rectify an otherwise oscillatory behavior by exploiting an asy...
We experimentally investigate the phenomenon of a quantum ratchet created by exposing a Bose-Einstei...
We control the current of a single-particle quantum ratchet by designing ramping schemes for experim...
Rectification phenomena in two specific mesoscopic systems are reviewed. The phenomenon is called ra...
We investigate the existence of the pure spin ratchet effect in a dissipative quasi-one-dimensional ...
Quantum Brownian motion in ratchet potentials is investigated by means of an approach based on a dua...
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