
Applied Math Applied Math Forum 
 LinkBack  Thread Tools  Display Modes 
January 29th, 2011, 08:20 AM  #1 
Newbie Joined: Oct 2010 Posts: 2 Thanks: 0  Quantum wave packet propagation, how to use it in FFT?
So I used the split step method on the Schrodinger equation and have produced the following equation: Which when scaled to dimensionless the time evolution step can be written as: F above represents the Fourier transform operator acting on the equations. Now my problem is that I don't know how to implement the above in Fast Fourier Transform. For example: If I were to take the exponential factor with V(x), do I multiply iV(x) by dt? Not sure I understand what is going on here.... Thanks 

Tags 
fft, packet, propagation, quantum, wave 
Thread Tools  
Display Modes  

Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
propagation error  Kinroh  Physics  1  November 3rd, 2013 07:22 PM 
Error propagation from a distribution  Shadly  Advanced Statistics  1  April 5th, 2011 03:02 PM 
propagation coefficient  Complex Numbers  ferret  Complex Analysis  2  February 23rd, 2011 02:36 PM 
Probability packet on winning the lottery please help  roncarlston  Algebra  2  November 24th, 2009 10:51 AM 
Equation for wave front propagation nonmotile  0879  Calculus  0  April 15th, 2009 05:41 AM 