Exploring light-cone distribution amplitudes from quantum computing  

作　　者：Tianyin Li Xingyu Guo Wai Kin Lai Xiaohui Liu Enke Wang Hongxi Xing Dan-Bo Zhang Shi-Liang Zhu 

机构地区：[1]Guangdong Provincial Key Laboratory of Nuclear Science,Institute of Quantum Matter,South China Normal University,Guangzhou 510006,China [2]Guangdong-Hong Kong Joint Laboratory of Quantum Matter,Southern Nuclear Science Computing Center South China Normal University.Guangzhou 510006,China [3]Department of Physics and Astronomy,University of California,Los Angeles 90095,USA [4]Center of Advanced Quantum Studies,Department of Physics,Beijing Normal University,Bejing 100875,China [5]Center for High Energy Physics,Peking University,Beijing 100871,China [6]Guangdong-Hong Kong Joint Laboratory of Quantum Matter,Frontier Research Institute for Physics,South China Normal University,Guangzhou 510006,China [7]Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials,School of Physics and Telecommunication Engineering,South China Normal University,Guangzhou 510006,China

出　　处：《Science China(Physics,Mechanics & Astronomy)》2023年第8期57-65,共9页中国科学：物理学、力学、天文学（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.12022512,12035007,12175016,12005065,12074180);the Guangdong Major Project of Basic and Applied Basic Research(Grant No.2020B0301030008);the Key-Area Research and Development Program of Guangdong Province(Grant No.2019B030330001);the Guangdong Basic and Applied Basic Research Fund(Grant No.2021A1515010317);the Key Project of Science and Technology of Guangzhou(Grant No.2019050001);the National Special Support Program for High-level Talents。

摘　　要：Light-cone distribution amplitudes(LCDAs)are essential nonperturbative quantities for theoretical predictions of exclusive highenergy processes in quantum chromodynamics(QCD).We demonstrate the prospect of calculating LCDAs on a quantum computer by applying a recently proposed quantum algorithm,with staggered fermions,to the simulation of the LCDA in the(1+1)-dimensional Nambu-Jona-Lasinio(NJL)model on classical hardware.The agreement between the result from the classical simulation of the quantum algorithm and that from exact diagonalization justifies the proposed quantum algorithm.We find that the resulting LCDA in the NJL model exhibits features shared with the LCDAs obtained from the QCD.

关 键 词：light-cone distribution amplitude quantum algorithm NJL model 

分 类 号：O413[理学—理论物理] O572.243[理学—物理]