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  • Committer: Paul Nation
  • Date: 2011-04-21 04:46:56 UTC
  • Revision ID: git-v1:dd4c966b490aa468dfbd28cef66694df4bf235c8

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test2.py
 
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from qutip import *
 
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N0=5
 
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N1=5
 
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N2=5
 
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alpha=sqrt(2)
 
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#define operators
 
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a0=tensor(destroy(N0),qeye(N1),qeye(N2))
 
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a1=tensor(qeye(N0),destroy(N1),qeye(N2))
 
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a2=tensor(qeye(N0),qeye(N1),destroy(N2))
 
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A=(alpha*a0.dag()-conj(alpha)*a0)
 
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start_time=time.time()
 
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D=A.expm()
 
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finish_time=time.time()
 
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print 'time elapsed = ',finish_time-start_time
 
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print D
 
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