Strategies for quantum chemistry on quantum computers

by Jim Freericks (Georgetown University)

Monday 13 Sep 2021, 14:00 → 15:00 US/Eastern

Quantum chemistry is thought to be one of the most likely opportunities for new scientific results on near-term quantum computers. In this talk, we will discuss three strategies toward achieving this goal. In the first, we explore electronic structure calculations that employ ultra low-depth circuits with a quadratic expansion for the energy expectation value to determine the variational energy. In the second, we discuss how using Green’s functions and mapping to ultra sparse Hamiltonians allows for low-depth time-evolution, which can be employed to determine electronic structure as well. In the third, we describe how driven-dissipative systems can be robustly simulated on NISQ machines and how this can be used to examine dissipation effects in molecules.