The quantum limit for electrical amplifiers: Can we reach it?

A. J. Rimberg; W. W. Xue; Z. Ji; F. Pan; J. Stettenheim; T. J. Gilheart

doi:10.1117/12.778262

20 February 2008 The quantum limit for electrical amplifiers: Can we reach it?

A. J. Rimberg, W. W. Xue, Z. Ji, F. Pan, J. Stettenheim, T. J. Gilheart

Author Affiliations +

Proceedings Volume 6885, MEMS/MOEMS Components and Their Applications V. Special Focus Topics: Transducers at the Micro-Nano Interface; 688505 (2008) https://doi.org/10.1117/12.778262
Event: MOEMS-MEMS 2008 Micro and Nanofabrication, 2008, San Jose, California, United States

Abstract

Any scientific instrument, including an electrical amplifier, necessarily adds noise in the process of performing a measurement. As might be expected from knowledge of Heisenberg's uncertainty principle, quantum mechanics sets strict limits on how little noise a measurement can add. There is a great deal of current interest in performing measurements at the quantum limit on such systems as qubits and nanomechanical resonators. Here we introduce the notion of quantum limited electrical measurement, and discuss recent progress made toward this goal.

Citation Download Citation

A. J. Rimberg, W. W. Xue, Z. Ji, F. Pan, J. Stettenheim, and T. J. Gilheart "The quantum limit for electrical amplifiers: Can we reach it?", Proc. SPIE 6885, MEMS/MOEMS Components and Their Applications V. Special Focus Topics: Transducers at the Micro-Nano Interface, 688505 (20 February 2008); https://doi.org/10.1117/12.778262

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