International Business Machines Corporation
Short circuit depth variational quantum computation of Monte Carlo minimization and N.sup.th order moments

Abstract:

Techniques and a system to facilitate quantum computation of Monte Carlo minimization are provided. In one example, a system includes a quantum processor and a classical processor. The quantum processor can perform an N.sup.th order moment expectation computation process to compute an expected value of a quantum state associated with a quantum circuit description. The classical processor can execute computer executable components stored in a memory, where the computer executable components comprise a variational optimization component. The variational optimization component can perform an optimization process associated with a Monte Carlo minimization process to iteratively determine a variational parameterization for an N.sup.th expectation value and associated trial state based on samples of the N.sup.th order moment expectation computation process.