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Multilayer test masses to enhance the collapse noise

Multilayer test masses to enhance the collapse noise
Multilayer test masses to enhance the collapse noise
Recently, a non-thermal excess noise, compatible with the theoretical prediction provided by collapse models, was measured in a millikelvin nanomechanical cantilever experiment [Vinante et al., Phys. Rev. Lett. 119, 110401 (2017)]. We propose a feasible implementation of the cantilever experiment able to probe such a noise. The proposed modification, completely within the grasp of current technology and readily implementable also in other type of mechanical non-interferometric experiments, consists in substituting the homogeneous test mass with one composed of different layers of different materials. This will enhance the action of a possible collapse noise above that given by standard noise sources.
1050-2947
1-10
Carlesso, Matteo
bdaf218c-85ae-43fb-a347-47800841078e
Vinante, Andrea
f023d600-0537-41c4-b307-bf9cdfc1f56c
Bassi, Angelo
374a70f7-61f8-4656-bb45-5857695750f1
Carlesso, Matteo
bdaf218c-85ae-43fb-a347-47800841078e
Vinante, Andrea
f023d600-0537-41c4-b307-bf9cdfc1f56c
Bassi, Angelo
374a70f7-61f8-4656-bb45-5857695750f1

Carlesso, Matteo, Vinante, Andrea and Bassi, Angelo (2018) Multilayer test masses to enhance the collapse noise. Physical Review A, 98, 1-10. (doi:10.1103/PhysRevA.98.022122).

Record type: Article

Abstract

Recently, a non-thermal excess noise, compatible with the theoretical prediction provided by collapse models, was measured in a millikelvin nanomechanical cantilever experiment [Vinante et al., Phys. Rev. Lett. 119, 110401 (2017)]. We propose a feasible implementation of the cantilever experiment able to probe such a noise. The proposed modification, completely within the grasp of current technology and readily implementable also in other type of mechanical non-interferometric experiments, consists in substituting the homogeneous test mass with one composed of different layers of different materials. This will enhance the action of a possible collapse noise above that given by standard noise sources.

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Multilayer test masses to enhance the collapse noise - Accepted Manuscript
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Accepted/In Press date: 1 August 2018
e-pub ahead of print date: 17 August 2018

Identifiers

Local EPrints ID: 422720
URI: https://eprints.soton.ac.uk/id/eprint/422720
ISSN: 1050-2947
PURE UUID: 305ddb89-00c1-46e7-ac07-a4bd017e92a2

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Date deposited: 01 Aug 2018 16:30
Last modified: 13 Mar 2019 18:12

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