We show that spin-flip rotation in a semiconductor quantum wire, caused by the Rashba and the Dresselhaus interactions (both of arbitrary strengths), can be suppressed by dint of an in-plane magnetic field. We found a new type of symmetry, which arises at a particular set of intensity and orientation of the magnetic field and explains this suppression. Based on our findings, we propose a transport experiment to measure the strengths of the Rashba and the Dresselhaus interactions.
@article{arxiv.0812.0139,
title = {Spin control in semiconductor quantum wires},
author = {R. G. Nazmitdinov and K. N. Pichugin and M. Valin-Rodriguez},
journal= {arXiv preprint arXiv:0812.0139},
year = {2009}
}