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Chin. Phys. B, 2015, Vol. 24(2): 020303    DOI: 10.1088/1674-1056/24/2/020303
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Two-electron quantum ring in short pulses

Poonam Silotiaa, Rakesh Kumar Meenab, Vinod Prasadb
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
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.
Keywords:  quantum ring      ultrashort pulses      transition probability  
Received:  11 June 2014      Revised:  25 August 2014      Accepted manuscript online: 
PACS:  03.65.Ge (Solutions of wave equations: bound states)  
  78.67.-n (Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures)  
  78.20.Bh (Theory, models, and numerical simulation)  
Corresponding Authors:  Poonam Silotia, Rakesh Kumar Meena, Vinod Prasad     E-mail:  psilotia.du@gmail.com;rakeshbasmeena@gmail.com;vprasad@ss.du.ac.in

Cite this article: 

Poonam Silotia, Rakesh Kumar Meena, Vinod Prasad Two-electron quantum ring in short pulses 2015 Chin. Phys. B 24 020303

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