Error when use mcsolve

[quans...@gmail.com]

I have installed the latest Anaconda with 32 bit for windows 7 and update numpy into "1. 12. 1" meanwhile. However there are some error when I use the Monte Carlo solver mcsolve when the c-ops are not none.

Here I choose the example which has been introduced by the guide book, and the codes following

from qutip import *
import numpy as np
times = np.linspace(0.0, 10.0, 200)
psi0 = tensor(fock(2, 0), fock(10, 5))
a  = tensor(qeye(2), destroy(10))
sm = tensor(destroy(2), qeye(10))

co =  np.sqrt(0.1) * a
H = 2 * np.pi * a.dag() * a + 2 * np.pi * sm.dag() * sm + 2 * np.pi * 0.25 * (sm * a.dag() + sm.dag() * a)
data = mcsolve(H, psi0, times, [co], [a.dag() * a, sm.dag() * sm])

But, the error reminder

However, when I set the c-ops none, it woks well.

data = mcsolve(H, psi0, times, [], [a.dag() * a, sm.dag() * sm])

[Paul Nation]

Try the latest 4.2 development version on GitHub.

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