2011/02/02 by F. Y. Khalili, F. Ya. Khalili
Physics and Astronomy · #Advanced Frequency and Time Standards #Cold Atom Physics and Bose-Einstein Condensates #Pulsars and Gravitational Waves Research #gr-qc #quant-ph
paper · pdf · doi:10.1103/physrevd.83.122001
published as Phys.Rev.D83:122001,2011 · 11 pages, 9 figures
arxiv created 2011/02/02 · openalex publication_date 2011/06/01 · arxiv updated 2011/06/13 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
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.