[ALPS-users] Is entropy measurement available in MPS_OPTIM of ALPS Prerelease 2.3.0?

[Michele Dolfi]

Hello,

Where do you look for the results? The entropy should be stored in the hdf5 result file.


Best,
Michele


> On 20 Jun 2017, at 04:23, Desmond <desmond2046 at gmail.com> wrote:
> 
> Hi Everyone,
> 
> From previous discussions and the documentations, I know that there is a hidden function in MPS_OPTIM that can measure the von Neumann entropy and n=2 Renyi entropy. I am wondering if this function is working in the binary code of ALPS Prerelease 2.3.0.
> 
> When I include "'MEASURE[Entropy]' :1," in my input file, I see at the final stage of the calculation, there is a message "calculating vN entropy" on display. However, I could not find any result related to the vN entropy in the output file.
> 
> I am wondering if I did something wrong or I need to compile a newer version that is not available in binary code.
> 
> Thank you in advance!
> 
> Desmond
> 
> 
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