Shortcuts to Adiabaticity in Digitized Adiabatic Quantum Computing

Shortcuts to adiabaticity are well-known methods for controlling the quantum dynamics beyond adiabatic criteria, where counter-diabatic (CD) driving provides a promising means speed up many-body systems. In this work, we show applicability of CD enhance digitized computing paradigm in terms fidelity and total simulation time. We study state evolution an Ising spin chain using version standard its variants derived from variational approach. apply technique preparation Bell Greenberger-Horne-Zeilinger states with high very shallow circuit. implement proposal IBM computer, proving usefulness noisy intermediate-scale devices.