Kufambira mberi kwave kuitwa mukudzidza kwekupedzisira kufamba kwetil quasiparticles inodzorwa ne lasers

Kufambira mberi kwave kuitwa mukudzidza kwekupedzisira kufamba kwetil quasiparticles inodzorwa nelasers

Mumakore achangopfuura, ongororo uye yekuedza uye yekuedza kutsvagurudza kuTologicum Intanmotion uye topological Liquanm zvinhu yave iri nyaya inopisa mumunda weCrodensed nyaya yeFizdens. Seimwe pfungwa itsva yenyaya yekufananidzwa, topology order, sekudyidzana, inyaya yakakosha mu condensed nyaya fizikisi. Kunzwisisa kwakadzama kweToplogy kunoenderana nematambudziko ekutanga muCrodensed nyaya fizikisi, senge maitiro ekutanga emagetsi eQuantum phoses. Munguva yemapariro, kuwirirana pakati pematanho mazhinji erusununguko, akadai semagetsi, mapikicha uye spin, anoita basa rekusarudza uye rinotonga zvivakwa. Kubvumirana kwechiedza kunogona kusiyanisa kusiyanisa pakati pezvikamu zvakasiyana uye kunyengera mamiriro ezvinhu kune zvinhu, uye ruzivo nezvezvivakwa zvezvinyorwa zvepanyama, zvimiro zvekushandurwa, uye nyika nyowani dzinogona kuwanikwa. Parizvino, hukama pakati peMacroscopic maitiro ezvekushandisa zvinhu zvinotyisidzirwa nemunda wechiedza uye microscopic atomiki uye zvemagetsi zvivakwa zvave chinangwa chekutsvaga.

Iyo photoslectric yekupindura maitiro ezvimwe zvinhu zvinoshandiswa zvine hukama neyakagadzirwa microscopic yemagetsi. Kune topological semi-simbi, iyo inotakura kufararira pedyo neBand Finsection inoerera zvakanyanya kune hunhu hwehuwandu hwesangano. Kudzidza kweNonlinear Optical phenomena mune topology semi-simbi inogona kutibatsira kuti tinzwisise zvivakwa zvehurongwa, uye zvinotarisirwa kuti izvi zvinogona kushandiswa mukugadzira kweOptical zvishandisoUye dhizaini yemasero eSolar, inopa zvinogona kushanda zvinoshanda mune ramangwana. Semuenzaniso, mune weyl semi-simbi, ichisunga Photon yeClotculyly Chiedza chichakonzera kugoverwa pamwe neyekupararira kwakapatsanurwa kuparadzwa kwechiedza, iyo inonzi Charal Solistion Kutonga (Mufananidzo 1).

Iyo yekuongorora yeiyo nonlinear Optical phenomena yezvinhu zvepanhuti zvinowanzotora nzira yekubatanidza iyo kuverenga kwezvinhu zvevhu mamiriro uye symmetry kuongororwa. Nekudaro, nzira iyi ine zvimwe zvinokatyamadza: Inoshayisa ruzivo rwechokwadi rwemutengesi anofarira mune Sportum Space uye nzvimbo chaiyo, uye haigone kumisikidza kuenzanisa kwakananga nenguva-yakagadziriswa yekuongorora nzira yekuongorora. Kubatana pakati peMagetsi-pdon-polatoni hakugone kutariswa. Uye izvi zvakakosha kune chimwe chikamu cheshanduko kuti zviitike. Uye zvakare, iyi yekunyora kuongororwa kwakavakirwa pane yePertbation dzidziso haigone kubata nemaitiro epanyama pasi pesimba rakasimba yechiedza. Iyo nguva-inotsamira density inoshanda molecular masimba (TDDft-md) simpulation yakavakirwa pamisimboti yekutanga inogona kugadzirisa matambudziko ari pamusoro.

Nguva pfupi yadarika, pasi pekutungamirirwa kweRwizi Revhitiko kuzvidzora kwakanakirwa mamiriro akasimba simulation simulation software tdap. Iyo mhinduro yemhinduro yeQastiparticle inofararira kuUstraffes laser mune yechipiri mhando yeWyl semi-simbi wte2 inoongororwa.

Zvakaratidzwa kuti ruzivo rwekusarudza rwevatakuri padyo neyeWyl Point's Charts Symbol Symmety Symmetry, uye nzira yayo inoenderana inogona kudzorwa nekuchinja kutungamira kwechiedza chechiedza chechiedza uye photon simba (fig. 2).

Iyo Asymmetric kuwirirana kwevatakuri vematoro inodzivirira mafoto mune akasiyana mafambiro mune chaiyo nzvimbo, iyo inokanganisa kutungamira uye symmetry yeiyo inopindira yehurongwa. Sezvo iyo tpological zvivakwa zveWTE2, yakadai sehuwandu hweWeyl mapoinzi uye huwandu hwekuparadzaniswa kwenzvimbo (nhamba yeAsymmetric ichaunza maitiro eWyl quontipolticles mune iyo nzvimbo inoenderana neyakaenzana mune yepafumo zvivakwa zvehurongwa. Nekudaro, chidzidzo chinopa iyo yakajeka phase diagram ye Phototopological phase traveji (Mufananidzo 4).

Mhedzisiro yacho inoratidza kuti chikamu chekutakurisa kufarirwa pedyo neWyl point inofanira kutariswa kune, uye maAtomi Orbital zvivakwa zvehuwandu hwehuwandu hunofanirwa kuongororwa. Mhedzisiro yeaviri yakafanana asi iyo mechanism iri pachena yakasiyana, iyo inopa hwaro hwekutsanangura kuongororwa kweiyo yeyl mapoinzi eyl. Uye zvakare, nzira yekudyidzana inotungamirwa mune ino chidzidzo inogona kunzwisisa zvakanyanya kutaurirana kwakaoma uye maitiro echiitiko, uye anotarisirwa kuve chishandiso chakasimba chekutsvagisa mune isina-nguva yekutsvagisa chiitiko chePHENOME mune zvemukati.

Mhedzisiro yacho iri mune yezvezvinyorwa zvekutaurirana. Basa rekutsvagirwa rinotsigirwa nenyika kiyi yekutsvaga uye chirongwa chekuvandudza, iyo National Natural Foundation uye iyo Strategic Project (chikamu b) yeChinese Chikoro cheStacient.

Fig.1.a. Chiratidzo chechiratidzo chekusarudza kweWyl mapoinzi neyekupi chiratidzo chiratidzo (χ = + 1) pasi pechiedza chakajeka; Sarudza ruzivo rwakakodzera nekuda kweAtomic Orbital Symmetry kuWyl point ye b. χ = + 1 in-line polarized mwenje

Fig. 2. Atomic dhizaini yedhiramu yeA, TD-WTE2; b. Bhendi dhiza padyo neFermi pamusoro; (c) Bhendi chimiro uye mipiro yemavara emaatomu akagoverwa nemitsetse yakakwirira yeSymmetric muBrillouin Dunhu, miseve (1) uye (2) inomirira kufarirana padhuze kana kure neWyl mapoinzi, zvichiteerana; d. Kukwidziridzwa kwechimiro chebhendi pamwe neGamma-X gwara

Fig. C. Kuenzanisa pakati peiyo fungidziro yekufungidzira uye kuongorora kwekutsvaga; de: symmetry dzidziso yehurongwa uye chinzvimbo, nhamba uye degree rekuparadzaniswa kweiyo mbiri dzeWyl Weyl mapoinzi muKZ = Ndege

Fig. 4.