Tuni ya yuwu don ƙirƙirar haske na ruwa a ɗakin ɗaki

hasken ruwa

Bayan aiki tuƙuru, a ƙarshe gungun masana kimiyyar lissafi sun yi nasarar kirkiro karo na farko a tarihi 'hasken ruwa'a dakin da zafin jiki. A matsayin cikakken bayani, gaya muku cewa a cikin ayyukan da suka gabata an riga an sami wannan sakamako kodayake a yanayin zafi yana kusa da cikakkiyar sifili, ba kamar wannan yanayin ba tunda muna magana ne game da samun haske don samun wannan tasirin a yanayin zafin jiki.

Ba tare da yin cikakken bayani ba, wani abu da zamuyi a layin gaba, zamu gaya muku cewa samun haske ya zama kamar ruwa an samu ta hanyar cakuda haske da kwayar halitta. Kamar yadda kuka sani sarai, haske gabaɗaya yakan yi kama da kalaman ruwa har ma wani lokacin kamar kwayar zarra wacce koyaushe ke tafiya cikin layi madaidaiciya. A wasu lokuta, wannan na iya kaiwa yi kamar dai ruwa ne kai, har ma, don shiga tsakanin abubuwa.


hasken ruwa

Wani rukuni na masana kimiyyar lissafi dan Italiya sun yi nasarar ƙirƙirar 'hasken ruwa' a ɗakin zafin a karon farko

Kamar yadda muka fada a baya, don sanya haske ya zama kamar ruwa, dole ne a cakuda shi da kwayoyin halitta, wani abu da aka samu ta hanyar godiya masu rarrabuwa, ƙusa 'kusan barbashi'yana fitowa daga haɗuwa tsakanin raƙuman haske da raƙuman ruwa na iska. A wannan gaba, kamar yadda masana kimiyyar lissafi da ke da alhakin wannan aikin suka yi sharhi, duk da cewa polaritons ba ƙananan element bane kamar su foton ko lantarki, idan suna yin haka kamar haka albarkacin ƙa'idodin jimla wanda ke jagorantar su.

A matsayin cikakken bayani, gaya muku cewa ainihin sha'awar jiki da ake kira as 'hasken ruwa'shi ne cewa wannan, ban da wani bakon nau'i na haske, shi ne superfluid, ba tare da wani danko ba, kuma wani nau'i na ƙwanƙwasa Bose-Einstein, wanda a lokuta da dama an bayyana shi a matsayin yanayi na biyar na kwayar halitta kuma hakan yana faruwa ne kawai a cikin wasu kayyakin yanayi a yanayin zafi kusa da cikakken sifili.

A cikin wannan kyakkyawan yanayin da baƙon abu, bisa ga dokokin kimiyyar lissafi, barbashi suna tafiya cikin saurin wucewa mai wuce yarda y bi ka'idojin da ma'anar keɓaɓɓu kerawa fiye da wadanda suke a kimiyyar lissafi tunda, maimakon su zama na barbashi, sai suka fara nuna hali kamar raƙuman ruwa da ke zaune a sararin samaniya wanda ba za'a iya tantance shi daidai ba.

haske

Wannan mahimmin matakin zai iya zama ci gaban sabbin fasahohin zamani

Matsayi mai ban sha'awa a cikin duk wannan binciken yana cikin fasahar da dole ne a haɓaka don tabbatar da cewa yana yiwuwa ƙirƙirar 'hasken ruwa'a dakin da zafin jiki A wannan lokacin ya kasance tsara na'urar ƙirar ido wacce ta ƙunshi madubai biyu, ɗayan yana fuskantar ɗayan, kuma mai rufi a cikin wani fim na bakin ciki na kwayoyin sunadarai 100 kawai. Don baka ra'ayi, gashin mutum yawanci yana da diamita dubu hamsin nanometers.

Da zarar an ƙera na'urar, an shirya ta zama bombarded tare da 35 femtosecond laser bugun jini. Godiya ga wannan, zai yuwu haske ya fara nuna kansa kamar wani ruwa mai girman ruwa a kusa da cikas. Wannan superfluid yana da wasu abubuwa masu ban mamaki na gaske kamar wani abu mai sauki kamar haka, ba kamar lokacin da wani ruwa ya zube ba, wanda ke haifar da daskararru da kyau, a wannan yanayin ana murkushe wadannan rikita-rikitar da lamuran a kusa da matsalolin da ke ba wannan superfluid damar tafiya ta hanyarku ba tare da canji ba.

Don fahimtar ɗan fahimtar muhimmancin bincike kamar wannan, nuna kalmomin ƙungiyar masu binciken waɗanda ke aiki a kan aikin, kalmomin da aka gaya mana game da yadda wannan matakin zai iya buɗewa sabon karatu a hydrodynamics jimla ko ƙyale mu haɓaka sababbin na'urori tare da masu iya aiki a yanayin zafin ɗaki don amfani da su a cikin fasahohin zamani masu zuwa kamar samar da kayan kwalliyar kwalliya kamar su ledoji, bangarorin hasken rana har ma da lasers, fasahohin da, misali, daga baya za a iya amfani da su wajen kirkirar kwamfutoci bisa tsarin polariton.


Abubuwan da ke cikin labarin suna bin ka'idodinmu na ka'idojin edita. Don yin rahoton kuskure danna a nan.

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