Cov khoom uas nthuav tawm cov xeev antisymmetric hu ua fermions. Antisymmetry ua rau muaj kev sib cais ntawm Pauli, uas txwv tsis pub cov fermions zoo tib yam los ntawm kev sib koom tib lub xeev quantum… Leej twg muaj feem cuam tshuam.
Yuav ua li cas yog txoj cai antisymmetric?
Tag nrho cov khoom uas muaj ib nrab ntawm kev sib tw (fermions) tau piav qhia los ntawm kev ua haujlwm tsis sib haum xeeb, thiab tag nrho cov khoom uas muaj xoom lossis ib qho sib npaug (bosons) tau piav qhia los ntawm kev sib luag wavefunctions. …
Vim li cas fermions tsis tuaj yeem nyob hauv tib lub xeev?
Atoms. … Ib qho hluav taws xob nruab nrab atom muaj cov khoom siv hluav taws xob sib npaug sib npaug rau cov protons hauv lub nucleus. Cov hluav taws xob, ua fermions, tsis tuaj yeem nyob hauv tib lub xeev quantum li lwm cov electrons, yog li electrons yuav tsum "pawg" hauv ib lub atom, piv txwv li muaj qhov sib txawv thaum nyob ntawm tib lub electron orbital raws li tau piav qhia hauv qab no.
Puas fermions puas muaj symmetric yoj ua haujlwm?
Ib lub xeev ntawm ob lub fermions yog ib qho boson, txawm tias tag nrho cov spin yog 0 lossis 1. Lub wavefunction ntawm cov fermions tseem yog antisymmetric, tab sis lub wavefunction ntawm bosons (xws li cov khoom siv hauv tsev.) yog symmetric.
Vim li cas boson nthwv dej ua haujlwm sib luag?
nqe lus yooj yim no muaj qhov tshwm sim loj heev ntawm kev faib tag nrho cov khoom nyob rau hauv ib qho ntawm ob chav kawm. qhov twg cov hais tau interchanged. … Nws hloov tawm tias cov khoom uas nws nthwv dej ua haujlwm uas yog symmetric nyob rau hauv particle interchange muaj ib lossis xoom intrinsic spin, thiab hu ua bosons.
