Charge Transport in a Quantum Electromechanical System

Details Charge Transport in a Quantum Electromechanical System Charge Transport in a Quantum Electromechanical System

2004-06-04

arxiv.org/abs/cond-mat/0406102v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

To appear in Phys. Rev. B., 13 pages, single column

Scientific paper

We describe a quantum electromechanical system(QEMS) comprising a single quantum dot harmonically bound between two electrodes and facilitating a tunneling current between them. An example of such a system is a fullerene molecule between two metal electrodes [Park et al., Nature, 407, 57 (2000)]. The description is based on a quantum master equation for the density operator of the electronic and vibrational degrees of freedom and thus incorporates the dynamics of both diagonal (population) and off diagonal (coherence) terms. We derive coupled equations of motion for the electron occupation number of the dot and the vibrational degrees of freedom, including damping of the vibration and thermo-mechanical noise. This dynamical description is related to observable features of the system including the stationary current as a function of bias voltage.

Affiliated with

Also associated with

No associations

Rating

Charge Transport in a Quantum Electromechanical System does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Charge Transport in a Quantum Electromechanical System, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Charge Transport in a Quantum Electromechanical System will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-59140