Efficient Quantum Imaginary Time Evolution by Drifting Real-Time Evolution: An Approach with Low Gate and Measurement Complexity

Quantum imaginary time evolution (QITE) is one of the promising candidates for finding the eigenvalues and eigenstates of a Hamiltonian on a quantum computer. However, the original proposal suffers from large circuit depth and measurements due to the size of the Pauli operator pool and Trotterizatio...

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Veröffentlicht in:	Journal of chemical theory and computation 2023-07, Vol.19 (13), p.3868-3876
Hauptverfasser:	Huang, Yifei, Shao, Yuguo, Ren, Weiluo, Sun, Jinzhao, Lv, Dingshun
Format:	Artikel
Sprache:	eng
Schlagworte:	Algorithms Circuits Convergence Cost analysis Drift Eigenvalues Eigenvectors Error analysis Evolution Hamiltonian functions Mathematical analysis Quantum computers Quantum Electronic Structure Time dependence
Online-Zugang:	Volltext
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