#54 Output files for QT time evolution have a tab in their name

[Casey Haack]

When I try to use the quantum trajectories time evolution method, my code errors out saying that the output file wasn't found. For example, when I try to fetch the results, I get an error:

Traceback (most recent call last):
  File "/Users/caseyhaack/Desktop/openmps/openmps/tfimsteadystate3.py", line 94, in <module>
    if results['converged']==False:
  File "/Users/caseyhaack/Desktop/openmps/openmps/MPSPyLib/obsterms.py", line 3695, in __getitem__
    Res = self.read()
  File "/Users/caseyhaack/Desktop/openmps/openmps/MPSPyLib/obsterms.py", line 3853, in read
    flnm + '.')
Exception: File not found for dynamic results testoutput/testB_1.0_g_1.0ObsOutDynamics/Dynamics_1step_000100.dat.

But when I look at the output folder, here called 'testoutput', I find that the outputs are there but they have an extra tab in their name. For example:
testoutput/testB_1.0_g_1.0ObsOutDynamics/Dynamics_1step_000100 .dat
I've attached my code to see if others can reproduce this error.
Regards,
Casey Haack

[Daniel Jaschke]

Hi Casey,

for instance you can add an additional key 'QT' to the parameters dictionary with an integer, i.e., the number of quantum trajectories. Then, there is a bug in the MPO measurements and you'd have to replace them with site or correlation measurements. The z-compoment would be
myObservables.AddObservable('site', 'sigmaz', '<z>')
and in the post processing
mags.append(np.mean(results['<z>']</z>))</z>

The convergence flag is only available for statics and cannot be accessed in a result of a quench. I will see if I can get the MPO measurements working.

Best regards,

Daniel