  We present MISTIQS, a Multiplatform Software for Time-dependent Quantum
Simulations. MISTIQS delivers end-to-end functionality for simulating the
quantum many-body dynamics of systems governed by time-dependent Heisenberg
Hamiltonians across multiple quantum computing platforms. It provides
high-level programming functionality for generating intermediate
representations of quantum circuits which can be translated into a variety of
industry-standard representations. Furthermore, it offers a selection of
circuit compilation and optimization methods and facilitates execution of the
quantum circuits on currently available cloud-based quantum computing backends.
MISTIQS serves as an accessible and highly flexible research and education
platform, allowing a broader community of scientists and students to perform
quantum many-body dynamics simulations on current quantum computers.
