Thequantumcorrespondenceofoneparticularsignatureofclassicalchaos———theexponentialinstabilityfmotioncanbecharacterizedbytheinitialexponentialgrowthrateofthespreadingwidthofthepropagatingquantumwavepacket.Inaformerstudy~[1]aonetoonecorrespondencehasbeenfoundbetweentheinitial