›› 2015, Vol. 24 ›› Issue (2): 20303-020303.doi: 10.1088/1674-1056/24/2/020303

• GENERAL • 上一篇    下一篇

Two-electron quantum ring in short pulses

Poonam Silotiaa, Rakesh Kumar Meenab, Vinod Prasadb   

  1. a Department of Physics and Astrophysics, University of Delhi, Delhi-110007, India;
    b Department of Physics, Swami Shraddhanand College, University of Delhi, Delhi-110036, India
  • 收稿日期:2014-06-11 修回日期:2014-08-25 出版日期:2015-02-05 发布日期:2015-02-05

Two-electron quantum ring in short pulses

Poonam Silotiaa, Rakesh Kumar Meenab, Vinod Prasadb   

  1. a Department of Physics and Astrophysics, University of Delhi, Delhi-110007, India;
    b Department of Physics, Swami Shraddhanand College, University of Delhi, Delhi-110036, India
  • Received:2014-06-11 Revised:2014-08-25 Online:2015-02-05 Published:2015-02-05
  • Contact: Poonam Silotia, Rakesh Kumar Meena, Vinod Prasad E-mail:psilotia.du@gmail.com;rakeshbasmeena@gmail.com;vprasad@ss.du.ac.in

摘要: The response of a two-electron quantum ring system to the short laser pulses of different shapes in the presence of external static electric field is studied. The variation of transition probabilities of the two-electron quantum ring from ground state to excited states with a number of parameters is shown and explained. The energy levels and wavefunctions of the system in the presence of static electric field are found by solving the time-independent Schrödinger equation numerically by the finite difference method. The shape of the pulse plays a dominant role on the dynamics.

关键词: quantum ring, ultrashort pulses, transition probability

Abstract: The response of a two-electron quantum ring system to the short laser pulses of different shapes in the presence of external static electric field is studied. The variation of transition probabilities of the two-electron quantum ring from ground state to excited states with a number of parameters is shown and explained. The energy levels and wavefunctions of the system in the presence of static electric field are found by solving the time-independent Schrödinger equation numerically by the finite difference method. The shape of the pulse plays a dominant role on the dynamics.

Key words: quantum ring, ultrashort pulses, transition probability

中图分类号:  (Solutions of wave equations: bound states)

  • 03.65.Ge
78.67.-n (Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures) 78.20.Bh (Theory, models, and numerical simulation)