Journal
PHYSICS LETTERS A
Volume 381, Issue 47, Pages 3921-3927Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physleta.2017.10.002
Keywords
Quantum foundations; Spontaneous collapse models; Matter-wave interferometry; Dissipation; Non-Markovian
Categories
Funding
- EU project NANOQUESTFIT
- INFN
- University of Trieste (FRA)
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Matter-wave interferometry is a direct test of the quantum superposition principle for massive systems, and of collapse models. Here we show that the bounds placed by matter-wave interferometry depend weakly on the details of the collapse mechanism. Specifically, we compute the bounds on the CSL model and its variants, provided by the KDTL interferometry experiment of Arndt's group (Eibenberger et al. (2013) [3]), which currently holds the record of largest mass in interferometry. We also show that the CSL family of models emerges naturally by considering a minimal set of assumptions. In particular, we construct the dynamical map for the colored and dissipative Continuous Spontaneous Localization (cdCSL) model, which reduces to the CSL model and variants in the appropriate limits. In addition, we discuss the measure of macroscopicity based on the cdCSL model. (C) 2017 Elsevier B.V. All rights reserved.
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