Toros, M. , van de Kamp, T. W., Marshman, R. J., Kim, M.S., Mazumdar, A. and Bose, S. (2021) Relative acceleration noise mitigation for nanocrystal matter-wave interferometry: Applications to entangling masses via quantum gravity. Physical Review Research, 3, 023178. (doi: 10.1103/PhysRevResearch.3.023178)
Text
251555.pdf - Published Version Available under License Creative Commons Attribution. 774kB |
Abstract
Matter-wave interferometers with large momentum transfers, irrespective of specific implementations, will face a universal dephasing due to relative accelerations between the interferometric mass and the associated apparatus. Here we propose a solution that works even without actively tracking the relative accelerations: putting both the interfering mass and its associated apparatus in a freely falling capsule, so that the strongest inertial noise components vanish due to the equivalence principle. In this setting, we investigate two of the most important remaining noise sources: (a) the noninertial jitter of the experimental setup and (b) the gravity-gradient noise. We show that the former can be reduced below desired values by appropriate pressures and temperatures, while the latter can be fully mitigated in a controlled environment. We finally apply the analysis to a recent proposal for testing the quantum nature of gravity [S. Bose et al., Phys. Rev. Lett. 119, 240401 (2017)] through the entanglement of two masses undergoing interferometry. We show that the relevant entanglement witnessing is feasible with achievable levels of relative acceleration noise.
Item Type: | Articles |
---|---|
Additional Information: | M.T. and S.B. would like to acknowledge EPSRC Grant No. EP/N031105/1, S.B. EPSRC Grant No. EP/S000267/1, and M.T. funding by the Leverhulme Trust (Grant No. RPG2020-197). A.M.’s research is funded by the Netherlands Organisation for Science and Research (NWO), Grant No. 680-91-119. R.J.M. is funded by a UCL Departmental Studentship. M.S.K. was supported by the EPSRC (Grant No. EP/R044082/1) through the QuantERA ERA-NET Cofund in Quantum Technologies. |
Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Toros, Dr Marko |
Authors: | Toros, M., van de Kamp, T. W., Marshman, R. J., Kim, M.S., Mazumdar, A., and Bose, S. |
College/School: | College of Science and Engineering > School of Physics and Astronomy |
Journal Name: | Physical Review Research |
Publisher: | American Physical Society |
ISSN: | 2643-1564 |
ISSN (Online): | 2643-1564 |
Copyright Holders: | Copyright © 2021 The Authors |
First Published: | First published in Physical Review Research 3:023178 |
Publisher Policy: | Reproduced under a Creative Commons licence |
University Staff: Request a correction | Enlighten Editors: Update this record