Polynomial-Time Simulation of Pairing Models on a Quantum Computer

作者：Lian-Ao Wu, Mark Byrd, Daniel A. Lidar · 发表于：Physical Review Letters · 年份：2002 · DOI：10.1103/physrevlett.89.057904 · 被引用次数：110 · 研究领域：Quantum Computing Algorithms and Architecture、Quantum many-body systems、Quantum and electron transport phenomena

We propose a polynomial-time algorithm for simulation of the class of pairing Hamiltonians, e.g., the BCS Hamiltonian, on an NMR quantum computer. The algorithm adiabatically finds the low-lying spectrum in the vicinity of the gap between the ground and the first excited states and provides a test of the applicability of the BCS Hamiltonian to mesoscopic superconducting systems, such as ultrasmall metallic grains.