Quadratic Quantum Measurements
介观与纳米尺度物理
2009-11-10 v1 量子物理
摘要
We develop a theory of quadratic quantum measurements by a mesoscopic detector. It is shown that quadratic measurements should have non-trivial quantum information properties, providing, for instance, a simple way of entangling two non-interacting qubits. We also calculate output spectrum of a quantum detector with both linear and quadratic response continuously monitoring coherent oscillations in two qubits.
引用
@article{arxiv.cond-mat/0401484,
title = {Quadratic Quantum Measurements},
author = {Wenjin Mao and Dmitri V. Averin and Rusko Ruskov and Alexander N. Korotkov},
journal= {arXiv preprint arXiv:cond-mat/0401484},
year = {2009}
}
备注
5 pages, 2 figures