Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2009-12-18
Proc. R. Soc. A, 468, 35 (2012)
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
11 pages, 5 figures; final version
Scientific paper
10.1098/rspa.2011.0201
Modern, state of the art nanomechanical devices are capable of creating spatial superpositions that are massive enough to begin to experimentally access the quantum to classical crossover, and thus force us to consider the possible ways in which the usual quantum dynamics may be affected. One recent theoretical proposal describes the crossover from unitary quantum mechanics to classical dynamics as a form of spontaneous symmetry breaking. Here, we propose a specific experimental setup capable of identifying the source of unitarity breaking in such a mechanism. The experiment is aimed specifically at clarifying the role played by gravity, and distinguishes the resulting dynamics from that suggested by alternative scenarios for the quantum to classical crossover. We give both a theoretical description of the expected dynamics, and a discussion of the involved experimental parameter values and the proposed experimental protocol.
Oosterkamp Tjerk H.
Wezel Jasper van
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