We formulate the problem of efficient transport of a quantum particle trapped in a harmonic potential which can move with a bounded velocity, as a minimum-time problem on a linear system with bounded input. We completely solve the corresponding optimal control problem and obtain an interesting bang-bang solution. These results are expected to find applications in quantum information processing, where quantum transport between the storage and processing units of a quantum computer is an essential step. They can also be extended to the efficient transport of Bose-Einstein condensates, where the ability to control them is crucial for their potential use as interferometric sensors.
@article{arxiv.1107.1691,
title = {Minimum-Time Quantum Transport with Bounded Trap Velocity},
author = {Dionisis Stefanatos and Jr-Shin Li},
journal= {arXiv preprint arXiv:1107.1691},
year = {2014}
}