Twist-and-store entanglement in bimodal and spin-1 Bose-Einstein condensates

• URL: http://arxiv.org/abs/2009.07372v1
• Date: Tue, 15 Sep 2020 22:16:42 GMT
• Title: Twist-and-store entanglement in bimodal and spin-1 Bose-Einstein condensates
• Authors: Artur Niezgoda, Emilia Witkowska, Safoura Sadat Mirkhalaf
• Abstract summary: The scheme consists of twisting dynamics followed by a single rotation of a state which limits further evolution around stable center fixed points in the mean-field phase space. The readout of parity quantifies the level of entanglement during entire evolution.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: A scheme for dynamical stabilization of entanglement quantified by the quantum Fisher information is analyzed numerically and analytically for bimodal and spin-1 Bose-Einstein condensates in the context of atomic interferometry. The scheme consists of twisting dynamics followed by a single rotation of a state which limits further evolution around stable center fixed points in the mean-field phase space. The resulting level of entanglement is of the order or larger than at the moment of rotation. It is demonstrated that the readout measurement of parity quantifies the level of entanglement during entire evolution.

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