2013/10/13 by Fuxiang Li, Avadh Saxena, D. L. Smith +2 · 22 citations
Computer Science · Physics and Astronomy · #Advanced Thermodynamics and Statistical Mechanics #Cumulant #Mesoscopic physics #Noise (video) #Order (exchange) #Path integral formulation #Physics #Quantum #Quantum Information and Cryptography #Quantum and electron transport phenomena #Quantum mechanics #Sensitivity (control systems) #Spin (aerodynamics) #Statistical physics #Statistics #cond-mat.mes-hall #cond-mat.mtrl-sci #cond-mat.stat-mech
paper · pdf · doi:10.1088/1367-2630/15/11/113038
published in New Journal of Physics 15(11), 113038 (IOP Publishing) · 16 pages, 7 figures
arxiv created 2013/10/13 · openalex publication_date 2013/11/19 · arxiv updated 2015/06/17 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06
The optical spin noise spectroscopy (SNS) is a minimally invasive route toward obtaining dynamical information about electrons and atomic gases by measuring mesoscopic time-dependent spin fluctuations. Recent improvements of the sensitivity of SNS should make it possible to observe higher-order spin correlators at thermodynamic equilibrium. We develop theoretical methods to explore higher-order (third and fourth) cumulants of the spin noise in the frequency domain. We make predictions for the possible functional form of these correlators in single quantum dot experiments and then apply the method of the stochastic path integral to estimate the effects of many-body interactions.