https://doi.org/10.1140/epjb/e2012-30243-7
Regular Article
Zitterbewegung study in Dirac oscillator with laser pulse
1 School of Science, Jiangnan University, Wuxi 214122, P.R. China
2 National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, P.R. China
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e-mail: wangyixiang0406@gmail.com
Received: 18 March 2012
Received in final form: 18 May 2012
Published online: 5 July 2012
We investigate theoretically Zitterbewegung behavior of Dirac oscillator after the excitation by a short laser pulse. With the help of the time-dependent perturbation theory, the dipole moments and the corresponding electric fields are calculated. We simulate the asymptotic limiting cases in relativistic and non-relativistic regimes with the quantum optic experiment and the results indicate that the ZB motion and the electromagnetic radiation tend to vanish in both limits. Further we analyze the Fourier frequency spectra of ZB motion.
Key words: Mesoscopic and Nanoscale Systems
© EDP Sciences, Società Italiana di Fisica and Springer-Verlag, 2012
