Testing collapse models with Bose-Einstein-condensate interferometry
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Documents
- PhysRevA.107.043320
Final published version, 2.05 MB, PDF document
The model of continuous spontaneous localization (CSL) is the most prominent consistent modification of quantum mechanics predicting an objective quantum-to-classical transition. Here we show that precision interferometry with Bose-Einstein-condensed atoms can serve to lower the current empirical bound on the localization rate parameter by several orders of magnitude. This works by focusing on the atom count dis-tributions rather than just mean population imbalances in the interferometric signal of squeezed Bose-Einstein condendates, without the need for highly entangled Greenberger-Horne-Zeilinger-like states. In fact, the interplay between CSL-induced diffusion and dispersive atom-atom interactions results in an amplified sensitivity of the condensate to CSL. We discuss experimentally realistic measurement schemes utilizing state-of-the-art experimental techniques to test new regions of parameter space and, pushed to the limit, to probe and potentially rule out large relevant parameter regimes of CSL.
Original language | English |
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Article number | 043320 |
Journal | Physical Review A |
Volume | 107 |
Issue number | 4 |
Number of pages | 12 |
ISSN | 2469-9926 |
DOIs | |
Publication status | Published - 24 Apr 2023 |
- QUANTUM, LOCALIZATION, ATOMS
Research areas
Links
- https://arxiv.org/pdf/2008.13580.pdf
Submitted manuscript
ID: 347799835