Quantum noise in ideal operational amplifiers
量子物理
2009-10-31 v1
摘要
We consider a model of quantum measurement built on an ideal operational amplifier operating in the limit of infinite gain, infinite input impedance and null output impedance and with a feddback loop. We evaluate the intensity and voltage noises which have to be added to the classical amplification equations in order to fulfill the requirements of quantum mechanics. We give a description of this measurement device as a quantum network scattering quantum fluctuations from input to output ports.
引用
@article{arxiv.quant-ph/9811062,
title = {Quantum noise in ideal operational amplifiers},
author = {Jean-Michel Courty and Francesca Grassia and Serge Reynaud},
journal= {arXiv preprint arXiv:quant-ph/9811062},
year = {2009}
}
备注
4 pages, 2 figures, RevTeX