Correlation-Informed Permutation of Qubits for Reducing Ansatz Depth in VQE

Understand

The Variational Quantum Eigensolver (VQE) is a method of choice to solve the electronic structure problem for molecules on near-term gate-based quantum computers.

• However, the circuit depth is expected to grow significantly with problem size.
• Increased depth can both degrade the accuracy of the results and reduce trainability.
• In this work, we propose a novel approach to reduce ansatz circuit depth.