In this section
@article{Cheng:2025:10.1103/physreva.111.062413,
author = {Cheng, MH and Khosla, KE and Self, CN and Lin, M and Li, BX and Medina, AC and Kim, MS},
doi = {10.1103/physreva.111.062413},
journal = {Physical Review A},
title = {Clifford circuit initialization for variational quantum algorithms},
url = {http://dx.doi.org/10.1103/physreva.111.062413},
volume = {111},
year = {2025}
}
TY - JOUR
AB - We present an initialization method for variational quantum algorithms applicable to intermediate-scale quantum computers. The method explores the efficiently classically simulable Clifford points of a parameterized quantum circuit, using simulated annealing to find a low-energy initial state. We provide numerical evidence of the effectiveness of the technique for different choices of the Hamiltonian structure, number of qubits, and circuit depth. While a number of problems are considered, we note that the method is particularly useful for quantum chemistry problems, for which it is able to capture long-range correlation energy. The presented method could help achieve a quantum advantage in noisy or fault-tolerant intermediate-scale devices by preparing a high-quality initial state.
AU - Cheng,MH
AU - Khosla,KE
AU - Self,CN
AU - Lin,M
AU - Li,BX
AU - Medina,AC
AU - Kim,MS
DO - 10.1103/physreva.111.062413
PY - 2025///
SN - 2469-9926
TI - Clifford circuit initialization for variational quantum algorithms
T2 - Physical Review A
UR - http://dx.doi.org/10.1103/physreva.111.062413
UR - https://doi.org/10.1103/physreva.111.062413
VL - 111
ER -