Shortcuts for Adiabatic and Variational Algorithms in Molecular Simulation
The study integrates shortcuts-to-adiabaticity (STA) techniques into adiabatic and variational algorithms to improve molecular ground state calculations. It introduces an adiabatic gauge ansatz (AGA) for VQE, which uses information from counter-diabatic driving to create compact circuits. Results show these methods achieve chemical accuracy while significantly reducing circuit depth, making quantum simulations more feasible for near-term devices.