Superfluids tuaj yeem siv hauv gyroscopes, los pab cov cav tov kwv yees cov ntaub ntawv hais txog lub ntiajteb txawj nqus txav uas tsis tuaj yeem nqa nrog cov twj paj nruag ib txwm muaj.
Koj pom cov dej nyob qhov twg?
Superfluidity tshwm sim nyob rau hauv ob isotopes ntawm helium (helium-3 thiab helium-4) thaum lawv liquefied los ntawm txias rau cryogenic kubNws kuj yog ib yam khoom ntawm ntau lwm yam kab txawv xeev. ntawm qhov teeb meem theorized kom muaj nyob rau hauv astrophysics, high-zog physics, thiab theories ntawm quantum gravity.
piv txwv ntawm ib qho superfluid yog dab tsi?
Piv txwv ntawm superfluids suav nrog helium-3 (los yog ³He) thiab helium-4 (los yog ⁴He) Rau qhov kub qis dua 2.17 K, helium-4 dhau los ua superfluid. Helium-3 dhau los ua ib qho superfluid qis dua 0.0025 K. Tsis tas li ntawd, thaum cov superfluids tau nplawm, lawv tsim cov vortices uas "rotate indefinitely" (saib daim duab.
Dab tsi yog qhov teeb meem superfluid?
: qhov txawv txav ntawm qhov teeb meem tau sau tseg tsuas yog hauv cov kua helium txias kom ze rau qhov tsis muaj tseeb thiab tus yam ntxwv los ntawm qhov tsis muaj kev sib txhuam (xws li los ntawm cov qhov zoo)
YPuas yog helium Tsuas yog superfluid?
Yog, para hydrogen, hauv qhov txwv. Kev ua haujlwm tsis ntev los no ntawm Göttingen tau nthuav tawm cov pov thawj ntseeg siab rau cov kua dej hydrogen, tsuas yog kua lwm yam tsis yog heliumlos nthuav tawm qhov kev coj cwj pwm no.
