Heisenberg-limited spin squeezing in coupled spin systems
- URL: http://arxiv.org/abs/2303.13889v1
- Date: Fri, 24 Mar 2023 09:55:25 GMT
- Title: Heisenberg-limited spin squeezing in coupled spin systems
- Authors: Long-Gang Huang, Xuanchen Zhang, Yanzhen Wang, Zhenxing Hua, Yuanjiang
Tang and Yong-Chun Liu
- Abstract summary: We propose a universal scheme to generate spin squeezing in coupled spin models with collective spin-spin interactions.
Our scheme can transform the coupled spin interactions into squeezing interactions, and reach the extreme squeezing with Heisenberg-limited measurement precision scaling.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Spin squeezing plays a crucial role in quantum metrology and quantum
information science. Its generation is the prerequisite for further
applications but still faces an enormous challenge since the existing physical
systems rarely contain the required squeezing interactions. Here we propose a
universal scheme to generate spin squeezing in coupled spin models with
collective spin-spin interactions, which commonly exist in various systems. Our
scheme can transform the coupled spin interactions into squeezing interactions,
and reach the extreme squeezing with Heisenberg-limited measurement precision
scaling as $1/N$ for $N$ particles. Only constant and continuous driving fields
are required, which is accessible to a series of current realistic experiments.
This work greatly enriches the variety of systems that can generate the
Heisenberg-limited spin squeezing, with broad applications in quantum precision
measurement.
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