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arXiv · 1102.0385

Pass-through Mach-Zehnder topologies for macroscopic quantum measurements

F. Ya. Khalili
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Abstract

Several relatively small-scale experimental setups aimed on prototyping of future laser gravitational-wave detectors and testing of new methods of quantum measurements with macroscopic mechanical objects, are under development now. In these devices, not devoted directly to the gravitational-wave detection, Mach-Zehnder interferometer with pass-through Fabry-Perot cavities in the arms can be used instead of the standard Michelson/Fabry-Perot one. The advantage of this topology is that it does not contain high-reflectivity end mirrors with multilayer coatings, which Brownian noise could constitute the major part of the noise budget of the Michelson/Fabry-Perot interferometers. We consider here two variants of this topology: the "ordinary" position meter scheme, and a new variant of the quantum speed meter.

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F. Ya. Khalili. 2011-02-02. Pass-through Mach-Zehnder topologies for macroscopic quantum measurements. https://doi.org/10.1103/physrevd.83.122001

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