具有自旋对准和磁性解耦功能的镜头噪声限制光学偏振测量法

IF 4.4 2区物理与天体物理 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Results in Physics Pub Date : 2024-09-07 DOI:10.1016/j.rinp.2024.107960

Xing Heng , Xiaofei Huang , Weiyi Wang , Fan Wang , Dinghui Gong , Chang Liu , Guoqing Tian , Jie Zheng , Yueyang Zhai , Kai Wei

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引用次数: 0

摘要

利用非共振偏振探针进行量子非拆卸测量是原子传感器的一项广泛应用技术。在超灵敏光学偏振测量中，我们观察到了由远消谐偏离共振线性探针诱导的自旋对齐偏振。探针产生的多极矩的演变加剧了强磁耦合引起的探针噪声。我们展示了一种通过操纵零场中的多极矩来使自旋对准与磁场脱钩的方法。利用所提出的方法，探针噪声被抑制了 10 分贝，达到了标准量子极限的噪声本底。所实现的射击噪声限制光学偏振测量法为旨在实现超灵敏度的原子传感器带来了重大希望。

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Shot-noise-limited optical polarimetry with spin-alignment and magnetism decoupling

Quantum non-demolition measurement with an off-resonance polarized probe is a widely utilized technique for atomic sensors. We observe previously unexplored spin-alignment polarization induced by the far-detuned off-resonance linear probe in an ultrasensitive optical polarimetry. The evolution of probe-generated multipole moments exacerbates probe noise due to strong magnetic couplings. We demonstrate a method to decouple spin-alignment from magnetic fields by manipulating the multipole moments in zero-fields. The probe noise is suppressed by 10 dB with the proposed method, achieving a noise floor at the standard quantum limit. The realized shot-noise-limited optical polarimetry holds significant promise for atomic sensors aimed at ultra-sensitivity.

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来源期刊

Results in Physics MATERIALS SCIENCE, MULTIDISCIPLINARYPHYSIC-PHYSICS, MULTIDISCIPLINARY

CiteScore

8.70

自引率

9.40%

发文量

754

审稿时长

50 days

期刊介绍： Results in Physics is an open access journal offering authors the opportunity to publish in all fundamental and interdisciplinary areas of physics, materials science, and applied physics. Papers of a theoretical, computational, and experimental nature are all welcome. Results in Physics accepts papers that are scientifically sound, technically correct and provide valuable new knowledge to the physics community. Topics such as three-dimensional flow and magnetohydrodynamics are not within the scope of Results in Physics. Results in Physics welcomes three types of papers: 1. Full research papers 2. Microarticles: very short papers, no longer than two pages. They may consist of a single, but well-described piece of information, such as: - Data and/or a plot plus a description - Description of a new method or instrumentation - Negative results - Concept or design study 3. Letters to the Editor: Letters discussing a recent article published in Results in Physics are welcome. These are objective, constructive, or educational critiques of papers published in Results in Physics. Accepted letters will be sent to the author of the original paper for a response. Each letter and response is published together. Letters should be received within 8 weeks of the article''s publication. They should not exceed 750 words of text and 10 references.