Operation Time of Quantum Gates
Quantum Physics
2007-05-23 v2
Abstract
We consider a quantum gate that complements the state of a qubit and then adds to it an arbitrary phase shift. It is shown that the minimum operation time of the gate is tau = (h/4E)(1+2 theta/pi), where h is Planck's constant, E is the quantum-mechanical average energy, and theta is the phase shift modulo pi. [We changed the name of a macro file to a more Windows-friendly one, and we clarified the remark "Note that..." after equation (4).]
Cite
@article{arxiv.quant-ph/0210076,
title = {Operation Time of Quantum Gates},
author = {Lev B. Levitin and Tommaso Toffoli and Zachary Walton},
journal= {arXiv preprint arXiv:quant-ph/0210076},
year = {2007}
}
Comments
3 pages, Latex, Rinton-P9x6.cls and custom macros latex+3.tex as separate files