Theory of optically detected spin noise in nanosystems

DS Smirnov, VN Mantsevich, MM Glazov - Physics-Uspekhi, 2021 - iopscience.iop.org
The theory of spin noise in low-dimensional systems and bulk semiconductors is reviewed.
Spin noise is usually detected by optical means continuously measuring the rotation angle …

Noise analysis of the atomic superheterodyne receiver based on flat-top laser beams

Z Wang, M **g, P Zhang, S Yuan, H Zhang… - Optics …, 2023 - opg.optica.org
Since its theoretical sensitivity is limited by quantum noise, radio wave sensing based on
Rydberg atoms has the potential to replace its traditional counterparts with higher sensitivity …

Interspecies spin-noise correlations in hot atomic vapors

K Mouloudakis, F Vouzinas, A Margaritakis… - Physical Review A, 2023 - APS
We report an experimental and theoretical study of spin-noise correlations in a Rb 87-Cs
133 unpolarized alkali-metal vapor dominated by spin-exchange collisions. We observe …

Repum** atomic media for an enhanced sensitivity atomic magnetometer

R Li, C Perrella, A Luiten - Optics Express, 2022 - opg.optica.org
Atomic vapour magnetometers sense the local magnetic field strength by measuring the
resulting precession rate of a well-defined quantum state. An essential prerequisite for this …

Acoustic frequency atomic spin oscillator in the quantum regime

J Jia, V Novikov, TB Brasil, E Zeuthen, JH Müller… - Nature …, 2023 - nature.com
Quantum noise reduction and entanglement-enhanced sensing in the acoustic frequency
range is an outstanding challenge relevant for a number of applications including …

Spin noise spectroscopy of an alignment-based atomic magnetometer

M Koźbiał, L Elson, LM Rushton, A Akbar, A Meraki… - Physical Review A, 2024 - APS
Optically pumped magnetometers (OPMs) are revolutionizing the task of magnetic-field
sensing due to their extremely high sensitivity combined with technological improvements in …

Detection of spin coherence in cold atoms via Faraday rotation fluctuations

M Swar, D Roy, S Bhar, S Roy, S Chaudhuri - Physical Review Research, 2021 - APS
We report noninvasive detection of spin coherence in a collection of Raman-driven cold
atoms using dispersive Faraday rotation fluctuation measurements, which opens …

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

X Heng, X Huang, W Wang, F Wang, D Gong, C Liu… - Results in Physics, 2024 - Elsevier
Quantum non-demolition measurement with an off-resonance polarized probe is a widely
utilized technique for atomic sensors. We observe previously unexplored spin-alignment …

Spin-noise spectroscopy of optical light shifts

J Delpy, S Liu, P Neveu, E Wu, F Bretenaker… - Physical Review A, 2023 - APS
Light-induced nonequilibrium spin-noise spectroscopy is theoretically and experimentally
shown to be an efficient technique to reveal the structure and coherent effects in a probed …

Spin-noise spectroscopy of a spin-one system

S Liu, P Neveu, J Delpy, E Wu, F Bretenaker… - Physical Review A, 2023 - APS
The spin-noise mechanisms in a spin-1 system are theoretically and experimentally
investigated in detail. Eight different independent spin degrees of freedom are isolated …