Spin-noise spectrum in a pulse-modulated field | Zendy

Guiying Zhang | Zendy; Wen Ya | Zendy; Jian Qiu | Zendy; Kaifeng Zhao | Zendy

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Spin-noise spectrum in a pulse-modulated field

Author(s) -

Guiying Zhang,

Wen Ya,

Jian Qiu,

Kaifeng Zhao

Publication year - 2020

Publication title -

optics express

Language(s) - Uncategorized

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.390771

Subject(s) - physics , optics , noise (video) , spin (aerodynamics) , rubidium , pulse (music) , field (mathematics) , materials science , computer science , mathematics , potassium , artificial intelligence , detector , pure mathematics , metallurgy , image (mathematics) , thermodynamics

We measure the spin noise spectrum (SNS) of a thermal Rubidium vapor in a pulse-modulated transverse magnetic field and develop a simple theory to describe the main structure of the SNS. Notably, when the pulse area is equal to π, the SNS consists of resonances centered at half-odd-integer multiples of the modulation frequency, while revealing the spin dynamics of the system in a zero field. Our study opens a promising way of studying zero-field spin dynamics by spin noise spectrum free from any low-frequency environmental disturbances.

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