CtrlQ is an open-source tool designed to simulate a gate-free state preparation on a Transmon qubit device using analog control pulses. The analog control pulses can be variationally shaped to drive an initial state to a target state in the framework of ctrl-VQE. In molecular systems, ctrl-VQE can be used to drive the initial Hartree Fock state to the full configuration interaction (FCI) state with substantial pulse duration speedups as compared to a gate-based compilation.
The control quantum program (CtrlQ) is written in python with bindings to C++ codes for highly efficient time-evolution of quantum systems either using an ordinary-differential-equation or the Suzuki-Trotter expansion.
Reference OR Meitei, BT Gard, GS Barron, DP Pappas, SE Economou, E Barnes, NJ Mayhall, Gate-free state preparation for fast variational quantum eigensolver simulations: ctrl-VQE arXiv:2008.04302
Detailed information for installation is provided in the documentation and consist of the following simple steps to build CtrlQ
-
Get the source code from github:
git clone --recursive https://github.com/oimeitei/ctrlq.git -
Configure with cmake and compile
cd ctrl mkdir build && cd build cmake .. make -
Run test
python -m unittest discover
Documentation is available online in html format here
and also can be found in the /ctrlq/doc directory. The documentation
contains detailed installation instruction including linking to optimized MKL
libraries and tutorials to run CtrlQ.