Isihloko: Imiqondo Eyisisekelo Yethiyori Yezintambo
Ithiyori yezintambo, umphikisi ovelele ekufuneni ukwakha ithiyori ehlangene yakho konke, imelela omunye wemizamo yesayensi ebaluleke kakhulu yesikhathi sethu. Ifuna ukuvumelanisa i-quantum mechanics kanye nokuhlobana okujwayelekile ngokusikisela ukuthi izakhi eziyisisekelo zendawo yonke azizona izinhlayiya ezifana namaphuzu, kodwa kunalokho "izintambo" ezinobukhulu obubodwa. Lesi sihloko sigxila emiqondweni eyisisekelo yethiyori yezintambo, sinikeza umbono olula osiza ukuqonda le nsimu eyinkimbinkimbi nethakazelisayo.
Izisekelo: Izintambo Nokudlidliza Kwazo
Enhliziyweni yenkolelo-mbono yezintambo kukhona umbono oguqukayo: umqondo wokuthi zonke izinhlayiya ziyizibonakaliso zokudlidliza kwezintambo ezinesilinganiso esisodwa. Lezi zintambo, ezingavuleka (zineziphetho ezimbili ezihlukile) noma zivaliwe (zakha izihibe), ziyashintshashintsha ngezikhathi ezihlukile, ngephethini ngayinye yokudlidliza ehambisana nenhlayiya ehlukile. Ngakho-ke, i-electron ihlukile kwi-photon hhayi ngoba ziyizinto ezihlukene ngokuphelele, kodwa ngoba ziyizintambo ezidlidliza ngezindlela ezihlukile.
Lo mqondo udlulela esikalini sobukhulu. Izintambo kuthiwa zincane kakhulu, ngokulandelana kobude bePlanck (cishe amamitha angu-10.5), isikali lapho i-physics evamile ihlangana khona ibe yizindawo zokuqagela. Ngenxa yokuthi lokhu kuguquguquka kwenzeka ezikalini ezincane kangaka, ukuzithola noma ukuzifunda ngqo ngobuchwepheshe bamanje kusalokhu kungaphezu kwamandla ethu.
I-Supersymmetry: Ukuhlanganisa ama-Boson nama-Fermions
Esinye sezici ezihlaba umxhwele kakhulu zethiyori yezintambo ukufakwa kwayo kwemvelo kwe-supersymmetry, ukulingana kwethiyori okubonisa ubudlelwano phakathi kwezigaba ezimbili eziyisisekelo zezinhlayiya: ama-boson (abathwali bamandla, njenge-photon nama-gluon) kanye nama-fermion (izinto eziyinhloko, njenge-electron nama-quark). I-Supersymmetry iphakamisa ukuthi inhlayiya ngayinye inomlingani "ophezulu" onezakhiwo ezihlukene zokujikeleza.
Ukufaka i-supersymmetry ku-string theory kunikeza izinzuzo eziningana zethiyori. Kusiza ekubhekaneni nokungahambisani kwe-Standard Model ye-particle physics, njengenkinga ye-hierarchy, ehilela ukuchaza ukuthi kungani amandla adonsela phansi ebuthakathaka kakhulu kunezinye izinto eziyisisekelo. Ngaphezu kwalokho, i-supersymmetry ibikezela izinhlayiya ezintsha njenge-neutralinos, ezingaba khona kubantu abazongenela izinto ezimnyama—into eyimfihlakalo eyakha ingxenye ebalulekile yamandla amakhulu endalo yonke.
Ubukhulu Obungeziwe: Ngale Kwesikhathi Sesikhala Esinezinhlangothi Ezine
Ithiyori yezintambo isebenza ngaphakathi kohlaka oludlula izilinganiso ezine ezijwayelekile (izilinganiso ezintathu zesikhala kanye nobukhulu besikhathi esisodwa). Ukuze izibalo zethiyori yezintambo zihlale zihambisana, kumele kube nezilinganiso ezengeziwe zesikhala, okungenzeka ukuthi zilethe ingqikithi ibe yizilinganiso eziyishumi noma eziyishumi nanye kuye ngokuthi iyiphi inketho ethile.
Lezi zilinganiso ezengeziwe ziyaqina, zivame ukubonakala ngezimo zejiyometri eziyinkimbinkimbi ezaziwa ngokuthi ama-Calabi-Yau manifolds. Ukuhlanganiswa kusikisela ukuthi lezi zilinganiso zigoqeke kakhulu ezikalini ze-subatomic kangangokuthi azikwazi ukutholakala ngendlela evamile. Ukuqonda ukuthi lezi zilinganiso zithonya kanjani izenzakalo ezibonakalayo ezweni lethu elibonakalayo elinezinhlangothi ezine kuyindawo ejulile neqhubekayo yocwaningo.
Ama-Branes: Izinto Ezinobukhulu Obuphakeme
Ngaphezu kwezintambo eziyisisekelo, inkolelo-mbono yezintambo ichaza izinto ezinobukhulu obuphezulu ezaziwa ngokuthi “ama-brane” (isifinyezo se-membrane). Ama-brane eza ngobukhulu obuhlukahlukene, kusukela kumaphuzu anobukhulu obungu-zero kuya ezintweni ezinobukhulu obuyisishiyagalolunye. Lawa ma-brane adlala indima ebalulekile ekuthuthukisweni okuningi kwemfundiso, esebenza njengezindawo zokugcina zezintambo ezivulekile noma njengemithombo yemiphumela yensimu yamandla adonsela phansi kanye ne-gauge.
Ama-D-brane, olunye lwezinhlobo ezifundwe kakhulu, abalulekile ekwakheni amamodeli amaningi e-string theory. Anikeza incazelo ehambisanayo yemiphumela engeyona ephazamisayo—leyo engenakubanjwa ngezindlela ezilula zokwandisa i-perturbative. Kwezinye izimo, indawo yonke yethu ebonakalayo kucatshangwa ukuthi ihlala ku-brane enezinhlangothi ezine ngaphakathi kwesikhala esinobukhulu obuphezulu, lapho amasimu athile namandla akhawulelwe kule brane.
Izinto ezimbili: Imibono Enezinhlangothi Eziningi
Amandla achazayo enkolelo-mbono yezintambo yinethiwekhi yezinto ezimbili ezixhumanisa ukwakheka okuhlukahlukene kwemfundiso-mbono. Izinto ezimbili ukuguqulwa kwezibalo okwembula ukulingana phakathi kwemibono engokoqobo ebonakala ihlukile. Kunezinhlobo eziningana ezibalulekile zezinto ezimbili kunkolelo-mbono yezintambo, okuhlanganisa:
1. I-T-Duality: Ibonisa ukulingana phakathi kwentambo ekhula ngobukhulu obuncane obuncane kanye nentambo enkulu.
2. I-S-Duality: Ihlobana nezindlela zokuxhumanisa eziqinile nezibuthakathaka zemibono ehlukene yezintambo, okuphakamisa ukuthi ukusebenzisana okuqinile kumodeli eyodwa kungahambisana nokusebenzisana okubuthakathaka kwenye.
3. Ukufana Kwesibuko: Uhlobo oluthakazelisayo lokubili lapho ubukhulu obengeziwe obuhlanganisiwe bunezimo ezimbili zejometri kodwa buveza imibono efanayo yemvelo.
Lezi zindlela ezimbili zinikeza ukuqonda okujulile, okuphakamisa ukuthi ukwakheka okuhlukahlukene kwethiyori yezintambo—Uhlobo I, Uhlobo IIA, Uhlobo IIB, intambo ye-SO(32) heterotic, kanye nentambo ye-\(E_8 \times E_8\) heterotic—akuzona izici ezihlukile kodwa ezixhumene kakhulu zohlaka olulodwa oluyisisekelo.
I-M-Theory: Isithombe Esihlanganisayo
Isimo sethiyori yezintambo safinyelela ushintsho olukhulu phakathi nawo-1990 ngokufika kwethiyori ye-M. Njengoba iphakanyisiwe njengesithombe esihlanganisa zonke izinkolelo-mbono ezinhlanu zezintambo ezihambisanayo, ithiyori ye-M yethula ubukhulu obengeziwe, iphakamisa inani lezilinganiso zesikhathi sesikhala libe yishumi nanye. Le thiyori ebanzi isikisela ukuthi izinkolelo-mbono zezintambo ezahlukene zimane nje ziyimibono ephansi yethiyori enezinhlangothi eziyishumi nanye eyisisekelo.
Ithiyori ye-M iphinde igcizelele ukubaluleka kwama-brane, anezindwangu (ama-brane anobukhulu obubili) kanye nezinye izinhlobo ezilinganayo ezinobukhulu obuphezulu ezidlala indima ebalulekile. Nakuba ukwakheka okugcwele kwethiyori ye-M kusalokhu kuwumzamo oqhubekayo, kumelela isinyathelo esikhulu sokufinyelela incazelo ephelele nehlanganisiwe yefiziksi eyisisekelo.
Izinselele kanye Neziqondiso Zesikhathi esizayo
Naphezu kobuhle bayo bezibalo kanye nesithembiso semfundiso, inkolelo-mbono yezintambo ibhekene nezinselele ezinkulu. Inkinga enkulu ukuntuleka kobufakazi obubonakalayo, ngokwengxenye ngenxa yezikali ezincane kakhulu lapho izintambo kuthiwa zisebenza khona. Ukuqinisekiswa kokuhlola kusalokhu kungaqondakali, futhi izibikezelo eziningi ezingahlolwa zenkolelo-mbono yezintambo zidinga izikali zamandla ezingaphezu kakhulu kwamakhono obuchwepheshe bamanje.
Ngaphezu kwalokho, "indawo" enkulu yezimo ze-vacuum ezingaba khona (izixazululo zezibalo ezilawula inkolelo-mbono yezintambo) yenza kube nzima imizamo yokuthola izibikezelo eziqondile. Njengoba kunezigidi zezixazululo ezivumelekile, ukuhlonza lelo elihambisana nendawo yonke yethu kufana nokuthola inalithi esibayeni se-cosmic hay.
Noma kunjalo, inkolelo-mbono yezintambo iyaqhubeka nokuphefumulela futhi iqhube ucwaningo olusha. Ikhuthaze intuthuko enkulu kwezibalo, yathonya ucwaningo lwe-quantum gravity, futhi yanikeza ukuqonda okujulile nge-physics yemigodi emnyama kanye nohlobo lwe-spacetime. Ngaphezu kwalokho, imizamo eqhubekayo ku-cosmology, i-physics yezinhlayiya, ngisho ne-physics yezinto ezihlanganisiwe ivame ukusebenzisa amathuluzi enkolelo-mbono acebile athuthukiswe ngaphakathi kohlaka lwenkolelo-mbono yezintambo.
Isiphetho
Ithiyori yezintambo imelela njengobufakazi bokulangazelela komuntu kanye nokuphishekela okungapheli ukuqonda isimo esiyisisekelo seqiniso. Ngokucabanga kabusha izinhlayiya njengezintambo ezinyakazayo nokuhlola indwangu eyinkimbinkimbi yobukhulu obuphezulu, ukulingana, kanye nobumbano, ithiyori yezintambo inikeza umbono othakazelisayo wendawo yonke ehlangene. Nakuba ukuqinisekiswa kwayo okuphelele kungase kube sesikhathini esizayo, uhambo oludlula kuthiyori yezintambo luyaqhubeka nokubumba umzila wefiziksi yesimanje yethiyori, lukhanyise izindlela ezingase zisiholele ethiyorini engaqondakali yakho konke ngelinye ilanga.
