We review the current status of quantum information science and some of the most promising applications of quantum technologies for high energy physics, presenting some recent results and challenges faced by the quantum computers and simulators currently available. Alongside this, we introduce the tensor network methods, a classical numerical approach that promises to become a powerful tool to support future quantum simulations and computations, providing guidance, benchmarking and verification of the quantum computation and simulation results. We review some of the latest obtained achievements: in particular, the first numerical and experimental quantum simulations of lattice gauge theories in regimes where Monte Carlo methods efficiency is hindered by the sign problem.
Please note:
This colloquium is integrated in the 13th Annual Workshop of the Helmholtz Alliance Physics at the Terascale
