Transmission phase shift of phonon-assisted tunneling through a quantum dot

Details Transmission phase shift of phonon-assisted tunneling through a quantum dot Transmission phase shift of phonon-assisted tunneling through a quantum dot

2007-11-30

arxiv.org/abs/0711.4882v1

Phys. Rev. B 77, 035309 (2008)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

8 pages, 6 figures, accepted by Phys. Rev. B

Scientific paper

10.1103/PhysRevB.77.035309

The influence of electron-phonon interaction on the transmission phase shift of an electron passing through a quantum dot is investigated by using the scattering theory. The transmission phase versus the intra-dot level shows a serial of phonon-induced dips. These dips are highly sensitive to electron-phonon interaction strength $\lambda$, and they are much more pronounced than phonon-assisted sub-peaks appeared in the conductance. Phonon-induce dephasing is also studied, and the results show that the dephasing probability $T_d$ monotonically increases with the electron-phonon interaction strength $\lambda$. The dephasing probability $T_d \propto\lambda^2$ for small $\lambda$ but $T_d\propto \lambda$ at large $\lambda$.

Affiliated with

Also associated with

No associations

Rating

Transmission phase shift of phonon-assisted tunneling through a quantum dot 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 Transmission phase shift of phonon-assisted tunneling through a quantum dot, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transmission phase shift of phonon-assisted tunneling through a quantum dot will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-702552