中国科学院物理研究所
北京凝聚态物理国家研究中心
SM8组供稿
第47期
2020年06月16日
受限导致手性活性物质的振荡集体运动

  youziqudongdanyuanzuchengdehuoxingwuzhi,liruxijunrongyeheziqudongjiaoti,shiyileizhongyaoderuanwuzhixitong。youyuqiguyoudefeipinghengtexing,huoxingwuzhijingchangbiaoxianchuqitedexingwei,bingzaiweiqijianyuzhinengcailiaofangmianjuyouqianzaideyingyongjiazhi。dangqian,tansuoyouzixuanhuoxinglizizuchengdeshouxinghuoxingwuzhi(poqueyuchengheshijianfanyanduichengxing),binglijieqifanchangdewulixingwei,shiruanwuzhilingyudeyigeyanjiuredian。shouxinghuoxingwuzhideyigetebieyouqudexianxiangshi: tazaishouxiantiaojianxiakeyichuxianzifadedanxiangjitibianyuanliu,zheizhongbianyuanliushenzhishishoutuopubaohude,juyouwendingdewuliaoshuyunnengli。duizheiyidutexianxiangdelijietongchangshijiyubukeyasuo、wujiegoudejunzhiliutililunkuangjia。daliangyanjiubiaoming,zixuanliziyuyueshubianjiedexianghuzuoyongduibianyuanliudechuxianqizhezhiguanzhongyaodezuoyong。raner,chulezheizhongzhijiedexianghuzuoyong,youyuliziweizhideguanlianxing,yueshuhaihuidaozhikongjianshangbujunyundelizimidufenbu。midubujunyunxingpubiancunzaiyushouxiandeduotixitongzhong,taduishouxinghuoxingwuzhijitixingweideyingxiangrengbuqingchu。

  jinqi,zhongguokexueyuanwuliyanjiusuo/beijingningjutaiwuliguojiayanjiuzhongxinruanwuzhishiyanshideboshihouliupenghecengying(yichuzhan)zaiyangmingchengfuyanjiuyuan、yefangfuyanjiuyuan、chenkeyanjiuyuandezhidaoxia,yubeijingligongdaxuezhengningjiaoshouxiaozuhezuo,shenrudiyanjiuleshouxianhuanjingzhongshouxinghuoxingwuzhidejitiyundongxingwei(tu1)。

  yanjiurenyuanjiehelilunjisuan,shuzhimoniheshiyanceliang,tansuoleshouxiandaozhidefeijunyunxingduihuoxingzhuanzijitixingweideyingxiang。tamenfaxianshouxinghuoxingwuzhiyanyueshubianjiecunzaijuliedekongjianzhendangdejitibianyuanliu(tu2)。zaiweiguanshang,huoxingzhuanzidefeijunyunfenbudaozhilekongjianfeijunyundemocayingli,gaiyinglishichanshengzhendangjitiyundongdegenyuan。gaiyanjiujinyibubiaoming,suizhexitongmidudebianhua,jitixingweihuijinglisanzhongbutongdeyundongmoshi: zhanxingmoshi、zhandanxingmoshihedanxingmoshi。butongyundongmoshizhuanbiandejiegouqiyuanduiyingyuleiguquyudeliantong,yijiquexianyinqidelizizhongpai(tu3)。zheixiefaxiandadaditishenglerenmenduishouxiantiaojianxiashouxinghuoxingwuzhijitixingweidelijie,bingchengqinglefeijunyunxinghekeyasuoxingduihuoxingxitongchuxianjitixingweidezhongyaoxing。gaichengguofabiaozaijinqideproc. natl. acad. sci. u.s.a. shang。

  gaiyanjiudedaoleguojiazirankexuejijinwei(11874397,11674365,11774394),zhongguokexueyuanqianyankexuezhongdianyanjiujihua(qyzdb-ssw-sys003)hek.c.wongjiaoyujijindezhichi。


图1 模拟和实验系统示意图


满堂彩 图2 通过模拟和实验观测到的不同的集体运动模式


满堂彩 图3 通过局域晶体序、连通概率、平均缺陷数目识别不同运动模式的结构起源