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SUMMARY:Entanglement and Quantum Gate Processes in the One-Dimensional Qua
 ntum Harmonic Oscillator - Mr Edmund Owen\, Semiconductor Physics Group\, 
 Cavendish Laboratory
DTSTART:20130603T130000Z
DTEND:20130603T141500Z
UID:TALK45300@talks.cam.ac.uk
CONTACT:Teri Bartlett
DESCRIPTION:Entangled states and quantum gates are two of the fundamental 
 building blocks for quantum information technologies.  In this seminar\, I
  will describe novel techniques for realizing these processes using dynami
 cal states in a one-dimensional harmonic oscillator.  \n\nIn order to effi
 ciently study the dynamics of this system\, we have developed a GPU-accele
 rated solver for the time-dependent Schrödinger equation which is up to x
 1000 faster than previous methods used within the group.  Using these simu
 lations\, we will show that by tuning the interaction strength between coh
 erent states oscillating in a harmonic potential\, we can generate maximal
 ly entangled states.  By studying the energy spectrum of the system\, we h
 ave shown that this technique is robust against perturbations.  Finally\, 
 I will describe how spin-orbit interaction can be introduced into the simu
 lations and I will show how its effect on the entanglement processes we ha
 ve proposed can be corrected for by choosing appropriate initial condition
 s.\n
LOCATION:Mott Seminar Room\, Cavendish Laboratory\, Department of Physics
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