Imibuzo Ebuzwa Njalo
Imibuzo evamile ngama-tachyons ephendulwe
Izisekelo
Yini ngempela i-tachyon?
I-tachyon yinhlayiya ecingelwayo ehamba njalo ngokushesha kunesibani sokukhanya. Ngokungafani nezinto ezijwayelekile ezingenakufinyelela ejubane lokukhanya, ama-tachyons awanakwehlela ejubane lokukhanya - akhona njalo endaweni esheshe kunesibani. Igama livela esiGrekini "tachys" elisho "okusheshayo."
Ngabe ama-tachyons akhona ngempela?
Akukho bufakazi bezilingo bama-tachyons obuze batholakala nakuba kusolwe iminyaka eminingi. Asaqhubeka eyizinhlayiya zethiyori kuphela ezinokwenzeka ngezibalo ku-relativity ekhethekile kodwa ezibhekana nezinselelo ezinkulu uma zihlanganiswa namanye amathiyori efizikhsi. Osozifizikhsi abaningi bakholelwa ukuthi cishe awakho njengezinhlayiya zangempela.
Ubani owathola ama-tachyons?
Ama-tachyons awazange atholakale - aphakanyiswa. Usozifizikhsi uGerald Feinberg wadala igama futhi wathuthukisa ithiyori ye-tachyon encwadini yakhe yango-1967. U-E.C.G. Sudarshan wathuthukisa imibono efanayo ngesikhathi esifanayo. Osozifizikhsi baphambili okuhlanganisa uRichard Tolman bacabanga ngezinhlayiya ezisheshe kunesibani kusukela ngo-1917.
Ifizikhsi & Izimpawu
Kungani ama-tachyons enesisindo esicatshangwayo?
Ku-relativity ekhethekile ka-Einstein, ubudlelwano phakathi kwamandla, i-momentum, nesisindo budinga ukuthi izinhlayiya ezisheshe kunesibani zibe nesisindo sokuphumula esicatshangwayo (isiphindaphindo se-square root ka-(-1)). Lokhu akusho ukuthi "zicatshangwayo" ngokusho kokuthi azikhona ngempela, kodwa kuyisici sezibalo esidingekayo ukuze izibalo zisebenze. Isisindo esicatshangwayo sivumela ama-tachyons ukuba namandla ne-momentum angokoqobo ngesikhathi esheshe kunesibani.
Ukuhamba okushesha kunesibani kuphula ithiyori ka-Einstein?
Cha, ama-tachyons awaphuli i-relativity ekhethekile. Ithiyori ka-Einstein ithi akukho into engasheshisa ukusuka ngaphansi kwejubane lokukhanya iye ngaphezulu, hhayi ukuthi akukho into enganakuba khona ehamba ngokushesha kunesibani. Ama-tachyons ayesheshe kunesibani kusukela adalwa. Kodwa-ke, aphakamisa imibuzo enzima ngokulandelana kwezinto.
Ukuhamba Kwesikhathi & Ukulandelana
Angasetshenziswa yini ama-tachyons ukuhamba esikhathini?
Ngokwethiyori, ama-tachyons abonakala ehamba emuva esikhathini kuma-frame athile e-relativity ekhethekile. Kodwa-ke, lokhu akusho ukuthi angasetshenziswa ukuhamba esikhathini okungokoqobo. Osozifizikhsi abaningi bakholelwa ukuthi noma ama-tachyons ekhona, kufanele kube nomthetho ovimbela ukusetshenziswa kwawo ukuthumela ulwazi emuva.
Yini i-antitelephone ye-tachyonic?
I-antitelephone ye-tachyonic umcabango wohlolo okhombisa ukuthi ama-tachyons angasetshenziswa kanjani ukuthumela imiyalezo emuva esikhathini. Ngokukhetha ama-frame ngokucophelela nokuthumela ama-signal e-tachyon phambili nasemuva, kungenzeka ukudala i-curve yesikhathi evaliwe evumela ukuxhumana nesikhathi esedlule.
Ukutholwa & Ukubukwa
Osayensi bawafuna kanjani ama-tachyons?
Abacwaningi bafuna ama-tachyons ngezindlela eziningi: ukukala amajubane ezinhlayiya kuma-accelerator, ukuhlaziya izikhathi ze-cosmic ray, ukufuna izinhlayiya ezinesisindo e-squared esimbi, ukufuna i-vacuum Cherenkov radiation, nokubuka izenzakalo ze-astronomical maqondana nezinto ezisheshe kunesibani ezandulela. Nakuba kusolwe iminyaka eminingi, akukho ma-tachyons atholakele.
Ngabe ama-neutrino angama-tachyons?
Cha. Nakuba ezinye izilingo ze-neutrino zokuqala zikhombisa ukuthi isisindo e-squared singaba simbi, ukukalwa okunembile kwanamuhla kuqinisekise ukuthi ama-neutrino anesisindo esincane kodwa esihle. Ama-neutrino ahamba ngejubane elisondele kakhulu ejubane lokukhanya, kodwa asehlela kunesibani.