A convenient method to prepare the effective pure state in a quantum ensemble
Quantum Physics
2007-05-23 v1
Abstract
A simple method is proposed to prepare conveniently the effective pure state |00...0><0...00| with any number of qubits in a quantum ensemble. The preparation is based on the temporal averaging (Knill, Chuang, and Laflamme, Phys.Rev.A 57, 3348(1998)). The quantum circuit to prepare the effective pure state is designed in a unified and systematical form and is explicitly decomposed completely into a product of a series of one-qubit quantum gates and the two-qubit diagonal quantum gates. The preparation could be programmed and implemented conveniently on an NMR quantum computer.
Cite
@article{arxiv.quant-ph/0008094,
title = {A convenient method to prepare the effective pure state in a quantum ensemble},
author = {Xijia Miao},
journal= {arXiv preprint arXiv:quant-ph/0008094},
year = {2007}
}
Comments
12 pages, no figure