Spin Squeezing through Collective Spin-Spin Interactions

• URL: http://arxiv.org/abs/2311.15667v1
• Date: Mon, 27 Nov 2023 09:55:01 GMT
• Title: Spin Squeezing through Collective Spin-Spin Interactions
• Authors: Yanzhen Wang and Xuanchen Zhang and Yong-Chun Liu
• Abstract summary: One axis-twisted (OAT) spin squeezing can be generated from free evolution under a general coupled-spin model with collective spin-spin interactions. We propose pulse schemes to recover squeezing from parameter imperfections, and reach the extreme squeezing with Heisenberg-limited measurement precision scaling as $1/N$ for $N$ particles.
• Score: 0.32885740436059047
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Spin squeezing provides crucial quantum resource for quantum metrology and quantum information science. Here we propose that one axis-twisted (OAT) spin squeezing can be generated from free evolution under a general coupled-spin model with collective spin-spin interactions. We further propose pulse schemes to recover squeezing from parameter imperfections, and reach the extreme squeezing with Heisenberg-limited measurement precision scaling as $1/N$ for $N$ particles. This work provides a feasible method for generating extreme spin squeezing.

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