Ukusebenza Casimir

Malunga-50 eyadlulayo, uHenry Casimir wafumanisa ukuba zidle phakathi iindawo ezimbini kukho ethile amandla umtsalane. La mandla ukudala revolution kwinzululwazi.

Ukuba uthatha nezipili amabini ukuzifaka kwindawo engenanto phakathi kwabo luqala umtsalane, kuba phakathi kwabo kukho cleaner. Le nto yafunyanwa ngama Casimir ngo-1948, xa benza umsebenzi wophando kumbindi ophando e Eindhoven. Le meko iye ngokuba isiphumo Casimir, amandla khona phakathi izipili ezimbini - amandla Casimir.

Ukuze ixesha elide oko kwakucingwa ukuba isiphumo Casimir - akunto ngaphezu theory kuhlekwe. Noko ke, kutshanje kuye kwanda umdla kule meko. Kuye kwafunyaniswa ukuba amandla Casimir luchaphazela ngqo iindlela kakhulu, kwaye kubulelwe inkqubela izixhobo zobugcisa la mandla lingaba nokulinganiswa ngobuciko high ukuba.

Le ukusebenza kuba enomdla physics ethile ebalulekileyo. Kukho iingcamango ezininzi, ngokoko apho kukho imilinganiselo ezongezelelweyo lokugxininisa ukufunda ibuye kwaye-mbini elinanye. Ngokuhambelana kunye nale ngcamango, kukho ukutenxa ethile umgangatho womxhuzulane Newton, xa imigama kwi iqhezu incinane ndlela. Ngoko ke, kulinganisa iziphumo isiphumo Casimir, ungakwazi ukukhangela le yeengcinga.

Ukufundisisa Casimir colloids

Xa sisebenza kwiziko ophando e Eindhoven, Casimir wafunda iimpawu uphawu izisombululo colloidal. Ezi izinto kunye viscosity eliphezulu, apho kufuneka ubukhulu isuntswana micron. iimpawu zabo ichazwe yimikhosi Van der Waals - elide-uluhlu imikhosi enomtsalane ezithi zenzeke phakathi molekyuli kunye athom akakhethi cala.

Theo Overbeek, Casimir asebenza, wathi ithiyori Fritz London ukuchaza imikhosi Van der imikhosi Waals kunganika uhlolo oluchanekileyo data zovavanyo. Wacela Casimir, ukuba wayesebenza kule ngxaki. Casimir kwafunyaniswa ukuba akunakwenzeka ukuba uchaze ngokuchanekileyo intsebenziswano kwaphawuleka phakathi iimolekyuli 2 cala, sigqibe ekubeni le uqina lokukhanya njalo.

Emva koko, lo Scientist wathi le umphumo zingachazwa ukuba uthathe ingqalelo we the ukuhla ye atom. Nokuya - kule kota, nto leyo luphawulwa zonke iintlobo ukuhla kunye notshintsho ngamaxesha athile. Ke sisazinzulu wacinga ukuba molekyuli endaweni ezimbini ukufaka izipili amabini zijikeleziswe omnye komnye ebonisa amaqela. Ngoko ke kwangaphambili ukuba amandla yomtsalane ekhoyo phakathi amacwecwe ekhanyayo.

Dynamic Casimir Effect

Ngokutsho ingcamango quantum, zidle ayikho ndingabi eqhelekileyo. Kuyo kukho ukuhla kwamandla rhoqo - amasuntswana virtual kunye antiparticles bezalwa bafe. Bona bayakwazi ukusebenzisa uxinzelelo. Le nto ibizwa ngokuba 'isiphumo Casimir static ". Kuye kwaba yi imifuniselo. Noko ke, kuthiwa kukho ukusebenza Casimir olutshintshatshintshayo - inguqu ukuhla emoyeni amasuntswana yokwenene (umz, ziluhlaza). Yiyo le isiphumo kuye kwafunyaniswa zizazinzulu.

Eneneni enamandla Casimir kufuneka kwenzeke oscillation esipilini, kunye ngesantya sabo ofanayo isantya lokukhanya. Ukuze wenze oku, zezinto kwafuneka zofako imagnethi enamandla, imiphezulu zesinyithi. Isantya nokunyuka yale endle kwaba izihlandlo ezilishumi elinanye billion ngomzuzwana. Umphezulu waqalisa ukugqabhuza ngezinga leyo 5% kokukhanya, kwaye ukuvela photons ibhalisiwe kwi imveliso. Ngokusekelwe iimpawu ziluhlaza, ke kunokuthiwa ukuba kuvela ngababini.