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Open Quantum Systems Decoherence

Asymmetric dynamical localization and precision measurement of BEC micromotion

arXiv
Authors: S. Sagar Maurya, J. Bharathi Kannan, Kushal Patel, Pranab Dutta, Korak Biswas, M. S. Santhanam, Umakant D. Rapol

Year

2024

Paper ID

66391

Status

Preprint

Abstract Read

~2 min

Abstract Words

110

Citations

N/A

Abstract

We employ a Bose Einstein Condensate (BEC) based atom-optic kicked rotor to generate an asymmetrically localized momentum distribution that depends upon initial velocity of the BEC. Asymmetric features are shown to arise from the early-time dynamics induced by the broken parity symmetry and, asymptotically freeze as the dynamical localization stabilizes. The asymmetry in the momentum distribution critically depends upon the initial launch velocity and is sensitive to very small initial velocities ('micromotion') of the BEC. In this work, we also perform a precise measurement of the 'micromotion'. By utilizing the technique of measuring the early-time asymmetry of momentum distribution, we report measurement of micromotion down to 230 pm 17 , μm/s.

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  • We employ a Bose Einstein Condensate (BEC) based atom-optic kicked rotor to generate an asymmetrically localized momentum distribution that depends upon initial velocity of the...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2406.12358 [2] arXiv https://arxiv.org/abs/2406.12358 [3] Publisher https://arxiv.org/abs/2406.12358

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