Abstract
We investigate dissipative quantum motion of a particle in a discrete periodic asymmetric lattice coupled to an Ohmic bath and subjected to a nonbiased oscillatory field. In the adiabatic forcing regime we find analytically external forcing rectification resulting in a motor mechanism through persistent current creation. The direction and intensity of the motor operation is controlled by the competing mechanisms of discreteness induced Stark localization and phonon assisted ratchet delocalization. Maximal current of either sign is predicted at a parameter dependent characteristic temperature.
| Original language | English |
|---|---|
| Pages (from-to) | 10-13 |
| Number of pages | 4 |
| Journal | Physical Review Letters |
| Volume | 81 |
| Issue number | 1 |
| Publication status | Published - 1998 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
Discrete quantum motors. / Roncaglia, R.; Tsironis, G. P.
In: Physical Review Letters, Vol. 81, No. 1, 1998, p. 10-13.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Discrete quantum motors
AU - Roncaglia, R.
AU - Tsironis, G. P.
PY - 1998
Y1 - 1998
N2 - We investigate dissipative quantum motion of a particle in a discrete periodic asymmetric lattice coupled to an Ohmic bath and subjected to a nonbiased oscillatory field. In the adiabatic forcing regime we find analytically external forcing rectification resulting in a motor mechanism through persistent current creation. The direction and intensity of the motor operation is controlled by the competing mechanisms of discreteness induced Stark localization and phonon assisted ratchet delocalization. Maximal current of either sign is predicted at a parameter dependent characteristic temperature.
AB - We investigate dissipative quantum motion of a particle in a discrete periodic asymmetric lattice coupled to an Ohmic bath and subjected to a nonbiased oscillatory field. In the adiabatic forcing regime we find analytically external forcing rectification resulting in a motor mechanism through persistent current creation. The direction and intensity of the motor operation is controlled by the competing mechanisms of discreteness induced Stark localization and phonon assisted ratchet delocalization. Maximal current of either sign is predicted at a parameter dependent characteristic temperature.
UR - http://www.scopus.com/inward/record.url?scp=0002471145&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0002471145&partnerID=8YFLogxK
M3 - Article
VL - 81
SP - 10
EP - 13
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 1
ER -