Kev puas tsuaj - dab tsi yog no

Tom qab nyeem ntawv no tsab xov xwm, koj yuav tau txais ntsib nrog qhov kev nkag siab ntawm lub annihilation txheej txheem, nws yuav tsum xyuas nyob rau hauv kom meej, lub zog tus nqi ntawm tus txheej txheem yuav tsum xyuas thiab parsed erroneous nkag siab txog ntawm no phenomenon.

Kev puas tsuaj - qhov no

Yog li ntawd, peb yuav ntsib nrog cov loj lo lus nug: "kev puas tsuaj - dab tsi yog qhov no?". Kev puas tsuaj yog ib tug txheej txheem ntawm kev sib tsoo ntawm ob ntsiab ntawm no tshwm sim, namely lub particle thiab antiparticle, thiab raws li ib tug tshwm sim rau hauv lub phenomenon ntawm ob opposite particle tsim tshiab hais, fundamentally sib txawv los ntawm tus thawj.

Xav paub lub ntsiab lus ntawm kev puas tsuaj

Rau cov thawj lub sij hawm no phenomenon twb tshwm sim nyob 1930, tab sis qhov kawg kabke ntawm lub hav zoov ntawm xws li ib tug txheej txheem tsuas yog nrog rau cov discovery ntawm cov khoom cua radioactivity, rau cov uas emit positrons, thiab tag nrho cov txheej txheem twb nrog los ntawm qhov kev tso tawm ntawm lub annihilation y-tawg.

Lub ntsiab lus ntawm kev puas tsuaj yog feem ntau piav raws li cov kev sib tsoo ntawm ob hais: hais thiab antiparticles, uas yuav raug rhuav tshem nyob rau hauv lub tsheb sib tsoo, tsim ib daim ntawv tshiab ntawm qhov teeb meem, tab sis nws yog ib tug tsis ncaj ncees lawm txhais ntawm no tshwm sim, uas yog daig zoo nkauj sib sib zog nqus nyob rau hauv lub scientific lub zej lub zos thiab generates ib tug ntau sib cav tswv yim los ntawm qhov teeb meem rau hnub no.

Yuav ua li cas yog tseem zoo annihilation? Kev puas tsuaj - yog tus txheej txheem ntawm tsim ntawm tshiab cov ntaub ntawv ntawm qhov teeb meem ntawm qhov teeb meem thiab antimatter hais thiab antiparticle. Nyob rau hauv tus txheej txheem no, tus thawj tsis yog muab kev koom tes hais, namely: mauj zog ntawm tus hais thiab lawv yuag tag nrho, tus nqi ntawm cov zog cov ntsiab lus, thiab txawm ib tug xwb mem tes. Piv txwv li, nyob rau hauv ib tug kev sib tsoo ntawm ib qho electron thiab ib tug positron, ob leeg hais yeej tsis lawm thiab hloov dua siab tshiab rau hauv photons, muab lawv cov loj thiab lub zog, uas tau ua, nyob rau hauv cov ntaub ntawv no, lub photon zog.

Peb xav txog xws li ib tug tshaj plaws li kev puas tsuaj. Yuav ua li cas yog lub phenomenon ntawm kev hloov nyob rau hauv qhov kev nkag siab ntawm lub ntiaj teb no thiaj, thiab nyob rau hauv Feem ntau nyob rau hauv qhov kev nkag siab ntawm tag nrho lub qab ntuj khwb?

Qhov no tus txheej txheem yog ib qho tseem ceeb epistemological lub ntsiab lus, cia kev rhuav tseg cov earliest metaphysical kev nkag siab ntawm tej yam ntawm cov immutability ntawm qhov teeb meem, rau tam sim no, qhov teeb meem yuav tsum hloov dua siab tshiab los ntawm ib daim ntawv mus rau lwm lub. Kev puas tsuaj ntawm qhib lub qhov muag ntawm noob neej rau cov essence heev ntawm qhov teeb meem, kev sib cav hais tias nws yog tsis yooj yim sua kom meej paub qhov txawv ntawm txawv hom ntawm qhov teeb meem, thiab yog hais tias muaj ib tug xov tooj ntawm tej yam, ennye hais yuav kis tau los ntawm ib daim ntawv mus rau lwm lub.

Electro-positron khub

Kev puas tsuaj txheej txheem zoo to taub los ntawm cov piv txwv positron-electron khub. Muaj ib tug uas tsis muaj zog xwb colliding electron thiab positron puam tsuaj (nyob rau hauv kev sib raug zoo rau nws lub xeev) ob mus rau peb photons thiab tus naj npawb ntawm photons nyob rau qhov chaw ntawm lub spins. Yog hais tias ob peb MeV electron xwb thiab positron annihilation zaum yuav tshwm sim multiphoton hom.

Tsis tas li ntawd, qhov no tshwm sim tau raug kawm nyob rau hauv lub neutron-Antineutrons thiab proton-antiproton officers.

Daim ntawv thov ntawm kev puas tsuaj

Peb mus txuas ntxiv rau muab rho lub notion ntawm "kev puas tsuaj." Yuav ua li cas yog nws, thiab yog dab tsi tseem ceeb tshwm sim yog nws nyob rau hauv nws tus kheej? Tsis tas li ntawd tsom xam nyob rau hauv kev nthuav dav, yuav ua li cas yuav siv nws?

Qhov no tshwm sim ntawm physics yog siv nyob ib ncig ntawm lub ntiaj teb no nyob rau hauv cov kev tshawb xav ntawm Relativity. Nws yog hloov dua siab tshiab los ntawm lub annihilation zog "E" (zero) nyob rau hauv lub kinetic zog ntaus, rau reacting khoom. Kev sib tsoo hais thiab antiparticle yeej ib txwm nrog ib tug haib ncaws zog, e.g., nyob rau hauv ib tug kev sib tsoo ntawm ib qho electron thiab ib tug positron. Txawm li cas los, nyob rau hauv niaj hnub lub sij hawm, qhov no txoj kev muab lub zog yog tsis siv vim ob peb yog vim li cas, xws li exorbitant nqi rau antimatter thiab antimatter cia nta txoj kev. Zog thiab lub annihilation ntawm dab tsi lurks nyob rau hauv tus txheej txheem? Cia li ib tug whopping macrobiotic kev pab! Nws tau txiav txim thiab xam hais tias 1 kg ntawm tus sis ntawm qhov teeb meem nrog tus nqi qub antimatter ua rau lub rho tawm ntawm tus nqi ntawm lub zog sib npaug zos rau kwv yees li 1,8h1017 Joule zog. Xws li ib tug nqi zog los ntawm cov tawg nyob rau hauv lub xov tooj ntawm trinitrotuluola 47 megatons.