MPS-rand-circ fails with type error

[twobombs]

What happened?

whilst running MPS-rand-circ a type error pops up - preventing the notebook to continue https://github.com/quicophy/mdopt/blob/main/examples/random_circuit/mps-rand-circ.ipynb

What did you expect to happen?

a random circ test

Minimal Complete Verifiable Example

No response

Relevant log output

No response

Anything else we need to know?

Python 3.10.12 on jupyter notebook

Environment

occurs both with pip3 install mdopt and from main installing it with -r requirements.txt

[meandmytram]

Hey @twobombs, thanks a lot for reporting this and very sorry for a late response, let me look into it and get back to you shortly!

[meandmytram]

@twobombs Can you try reproducing the error from the current version of the main branch please?

[twobombs]

I forgot to mention last time wich could be important: after removing the random_circuit double declaration leaving only examples to import the notebook runs this time it stops at the same place with the same error

[meandmytram]

Hey @twobombs, thanks for the clarification!

First, the imports for the examples folder in a notebook might require adding the directory to the os.path. Feel free to open a PR, that should be just a one-liner: smth like try import ... and except ModuleNotFoundError os.path[0].append(...). In the newest version of the main the examples folder has subdirectories to isolate different examples from each other.

Second, the current version of the function mps.utils.create_simple_product_state has an argument called tolerance which corresponds to how much we can deviate from "real" (normalised) quantum states. Thus the second error must go away once the main branch is pulled.

Thanks a bunch and let me know!