Chopped random-basis quantum optimization

TL;DR

The paper introduces the CRAB optimal control technique, demonstrating its efficiency and versatility in optimizing quantum processes with fewer resources compared to other methods.

Contribution

It presents the CRAB method as a general, resource-efficient optimal control technique for quantum simulations and processes.

Findings

CRAB achieves results comparable to other optimal control methods

CRAB reduces computational resources needed

Demonstrated effectiveness in various quantum process optimizations

Abstract

In this work we describe in detail the "Chopped RAndom Basis" (CRAB) optimal control technique recently introduced to optimize t-DMRG simulations [arXiv:1003.3750]. Here we study the efficiency of this control technique in optimizing different quantum processes and we show that in the considered cases we obtain results equivalent to those obtained via different optimal control methods while using less resources. We propose the CRAB optimization as a general and versatile optimal control technique.