Mass Detection with Nonlinear Nanomechanical Resonator

@misc{citeulike:1666241, abstract = {anomechanical resonators having small mass, high resonance frequency and low damping rate are widely employed as mass detectors. We study the performances of such a detector when the resonator is driven into a region of nonlinear oscillations. We predict theoretically that in this region the system acts as a phase-sensitive mechanical amplifier. This behavior can be exploited to achieve noise squeezing in the output signal when homodyne detection is employed for readout. We show that mass sensitivity of the device in this region may exceed the upper bound imposed by thermomechanical noise upon the sensitivity when operating in the linear region. On the other hand, we show that the high mass sensitivity is accompanied by a slowing down of the response of the system to a change in the mass.}, author = {Buks, Eyal and Yurke, Bernard }, citeulike-article-id = {1666241}, eprint = {quant-ph/0606081}, keywords = {quantum}, month = {Jul}, posted-at = {2007-09-17 16:08:53}, priority = {2}, title = {Mass Detection with Nonlinear Nanomechanical Resonator}, url = {http://arxiv.org/abs/quant-ph/0606081}, year = {2006} }

TY - ELEC ID - citeulike:1666241 L3 - citeulike-article-id:1666241 TI - Mass Detection with Nonlinear Nanomechanical Resonator N2 - anomechanical resonators having small mass, high resonance frequency and low damping rate are widely employed as mass detectors. We study the performances of such a detector when the resonator is driven into a region of nonlinear oscillations. We predict theoretically that in this region the system acts as a phase-sensitive mechanical amplifier. This behavior can be exploited to achieve noise squeezing in the output signal when homodyne detection is employed for readout. We show that mass sensitivity of the device in this region may exceed the upper bound imposed by thermomechanical noise upon the sensitivity when operating in the linear region. On the other hand, we show that the high mass sensitivity is accompanied by a slowing down of the response of the system to a change in the mass. KW - quantum AU - Buks, Eyal AU - Yurke, Bernard PY - 2006/Jul/05/ UR - http://arxiv.org/abs/quant-ph/0606081 ER -