qlab is a Python package that provides methods useful to the Quantum Information Lab @ La Sapienza.
It was developed to conduct the experiments of my MSc thesis.
This is not an official package from the group.
It currently features:
- A method to evaluate the permanent of a numpy matrix using Ryser's formula. This is a fork of Pete Shadbolt's repository, updated to work with Python 3.6.
- A controller for the Leoni FiberSwitch© series.
- A controller for the Keithley 2231A DC Power Supplies.
- An updated version of Michael Leung's PyAPT, that works with Python 3.6.
- A controller for the ID Quantique ID800 TDC.
- An helper function to plot and fit Hong-Ou-Mandel experiments.
qlab requires pyvisa to interface with some instruments. pyvisa is installaed automatically when qlab is installed.
pyvisa, in turns, uses NI-Visa, which can be downloaded from National Instruments' website by creating a free account.
NI-Visa is required only by the KeithleyPowerSupply and the LeoniFiberSwitch classes, to use the rest of the package it is not strictly needed.
PyAPT requires ThorLabs' APT drivers, which can be downloaded from their website. You will then need to copy APT.dll and APT.lib inside qlab/controllers directory.
ID Quantique dll libraries are provided with the ID800. Specifically you need to copy tdcbase.dll (along with tdcbase.lib and libusb0.dll) inside qlab/controllers directory, or point to it when creating an IDQ800 object.
qlab is available on PyPI, so it can be easily installed with
pip install qlab