Hamiltonian Open Quantum System Toolkit (HOQST)*

We present an open-source software package called "Hamiltonian Open Quantum System Toolkit" (HOQST), a collection of tools for the investigation of open quantum system dynamics in Hamiltonian quantum computing, including both quantum annealing and the gate-model of quantum computing. It features the key master equations (MEs) used in the field, suitable for describing the reduced system dynamics of an arbitrary time-dependent Hamiltonian with either weak or strong coupling to infinite-dimensional quantum baths. This package is ready to be deployed on high performance clusters (HPC) and aimed at providing reliable open-system analysis tools for noisy intermediate-scale quantum (NISQ) devices.