Study of Multiple Quantum Beats in Atomic Wavepackets

Chang Jun Zhu; Bing Xue; Xue Jun Zhai; Jun Fang He

doi:10.4028/www.scientific.net/AMM.325-326.119

Paper Titles

Screening for the Strain Galactomyces sp. Producing Bioflocculant by UV Mutagenesis
p.102

Synthesis and SEM Analysis of Ketoprofen-Hidroxipropil-β-Cyclodextrin Microparticles for Medical Applications as Drug-Release System with a High Bioavailability
p.106

Model Research of Supercritical CO₂ Extraction Tillering Onion Essential Oil Based on Differential Mass Conservation Equation and BP Neural Network
p.111

Numerical Simulation of High Frequency Vibration Recovery Enhancement Technology in Low-Permeability Reservoirs
p.114

Study of Multiple Quantum Beats in Atomic Wavepackets
p.119

A Damage Model for Prediction of the Open-Hole Strength of Glare Laminates
p.123

Recovery of Copper from Flotation Tailings by Leaching
p.128

Comparison between some Simulation Methods Regarding the Thermal Stress on Disc Brake
p.135

Intricacy of the Transit Manifold Concept Paid-off by Computational Accuracy
p.142

HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 325-326Study of Multiple Quantum Beats in Atomic...

Study of Multiple Quantum Beats in Atomic Wavepackets

Abstract:

A theoretical model consisting of 5 energy levels in coupled four-wave mixing processes was proposed to analyze the coherent characteristics of atomic wavepackets using perturbative theory. The equations of motions of the density matrix were derived and the third-order density matrix elements were presented. Under the condition that the duration of laser pulses is sufficiently short, the system response was treated as impulse response. Moreover, in the lowest order perturbation theory, the third-order nonlinear polarization was obtained using rotating-wave approximation. The results show that multiple quantum beats are embedded in the coupled four-wave mixing signals, and coherent dynamics of wavepackets can be retrieved from the quantum beat dynamics.