Sparse-QITE: Discovering Compact Generators for Quantum Imaginary-Time Evolution via Regularization Methods
Sparse-QITE regularizes quantum imaginary-time evolution to create compact local generators by selecting a subset of Pauli strings instead of using the full basis. This method significantly reduces circuit resources, leading to fewer gates and lower depth while maintaining high accuracy. The approach is scalable and shows promise for more resource-efficient quantum simulations.