Hi Joseph,

Indeed, the measurements are hardcoded in the present version of the code. You can determine the syntax of the outputs by looking at one of the output *.h5 files. There's too many to list here, so I've attached a screenshot. For the correlation functions which are computed, they are computed for all pairs of sites i and j and returned as a matrix. Hope this helps.

-Michael [image: Inline image 1]

Hi all,

I'm attempting to look at spin correlation functions, both nearest neighbour and next nearest neighbour, near the centre of an XXZ chain that is undergoing a quench using the TEBD code. As far as I can tell from the documentation, these measurements are hardcoded in to the TEBD code, but the documentation gives no clue on how to access them. In effect, what I would like to know is what can I write into the following line of Python (taken from the second TEBD tutorial): Data = pyalps.load.loadTimeEvolution(pyalps.getResultFiles(prefix='tutorial_2a'), measurements=['Local Magnetization']) instead of 'Local Magnetization', in order to obtain the correlation functions, and also how I could then define which sites the correlation function will be calculated using. I think a question similar to this was asked in January, but there was no answer. Thank you very much in advance! Joseph Prentice