So sánh phương pháp

	Thuật toán Tìm Giá trị Riêng Lượng Tử Biến phân	Lý thuyết Hàm Mật độ
Lĩnh vực	Tính toán lượng tử	Tính toán lượng tử
Họ	Machine learning	Machine learning
Năm ra đời	2014	1965
Người khởi xướng	Alberto Peruzzo	Walter Kohn
Loại	Hybrid quantum-classical algorithm	Electronic structure method
Công trình gốc	Peruzzo, A., McClean, J., Shadbolt, P., et al. (2014). A variational eigenvalue solver on a photonic quantum processor. Nature Communications, 5, 4213.	Kohn, W., Sham, L. J. (1965). Self-consistent equations including exchange and correlation effects. Physical Review, 140, A1133–A1138.
Tên gọi khác	VQE, hybrid quantum-classical	DFT, Kohn-Sham equations
Liên quan	4	4
Tóm tắt	The Variational Quantum Eigensolver (VQE) is a hybrid quantum-classical algorithm designed to find the lowest eigenvalue (ground state energy) of a quantum Hamiltonian. Introduced by Peruzzo et al. in 2014, it exploits the variational principle to combine the power of quantum circuits with classical optimization to solve chemistry and materials science problems on near-term quantum devices.	Density Functional Theory (DFT) is a computational method for determining the properties of materials and molecules by modeling the ground state electron density. Developed by Walter Kohn and Lu Jeu Sham in the 1960s, DFT reduces the complexity of quantum chemistry from tracking individual electron coordinates to optimizing the total electron density, enabling efficient simulations of large molecular and condensed-matter systems.