Measuring Controlled-NOT and two-qubit gate operation
量子物理
2015-06-26 v1
摘要
Accurate characterisation of two-qubit gates will be critical for any realisation of quantum computation. We discuss a range of measurements aimed at characterising a two-qubit gate, specifically the CNOT gate. These measurements are architecture-independent, and range from simple truth table measurements, to single figure measures such as the fringe visibility, parity, fidelity, and entanglement witnesses, through to whole-state and whole-gate measures achieved respectively via quantum state and process tomography. In doing so, we examine critical differences between classical and quantum gate operation.
引用
@article{arxiv.quant-ph/0308115,
title = {Measuring Controlled-NOT and two-qubit gate operation},
author = {Andrew G. White and Alexei Gilchrist and Geoffrey J. Pryde and Jeremy L. O'Brien and Michael J. Bremner and Nathan K. Langford},
journal= {arXiv preprint arXiv:quant-ph/0308115},
year = {2015}
}
备注
10 pages (two-column). 1 figure