Genoni, MG;
Duarte, OS;
Serafini, A;
(2016)
Unravelling the noise: the discrimination of wave function collapse models under time-continuous measurements.
NEW JOURNAL OF PHYSICS
, 18
, Article 103040. 10.1088/1367-2630/18/10/103040.
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Abstract
Inspired by the notion that environmental noise is in principle observable, while fundamental noise due to spontaneous localization would not be, we study the estimation of the diffusion parameter induced by wave function collapse models under continuous monitoring of the environment. We take into account finite measurement efficiencies and, in order to quantify the advantage granted by monitoring, we analyse the quantum Fisher information associated with such a diffusion parameter, identify optimal measurements in limiting cases, and assess the performance of such measurements in more realistic conditions.
| Type: | Article |
|---|---|
| Title: | Unravelling the noise: the discrimination of wave function collapse models under time-continuous measurements |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1088/1367-2630/18/10/103040 |
| Publisher version: | http://dx.doi.org/10.1088/1367-2630/18/10/103040 |
| Language: | English |
| Additional information: | Original content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. |
| Keywords: | Science & Technology, Physical Sciences, Physics, Multidisciplinary, Physics, quantum estimation, wave-function collapse models, stochastic master equation, quantum control, QUANTUM STATES, PHASE |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1542432 |
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