realitista@lemm.ee to Science Memes@mander.xyzEnglish · 4 days agoVirgin Physicistslemmy.worldexternal-linkmessage-square40fedilinkarrow-up11arrow-down10file-textcross-posted to: lemmyshitpost@lemmy.world
arrow-up11arrow-down1external-linkVirgin Physicistslemmy.worldrealitista@lemm.ee to Science Memes@mander.xyzEnglish · 4 days agomessage-square40fedilinkfile-textcross-posted to: lemmyshitpost@lemmy.world
minus-squareA_A@lemmy.worldlinkfedilinkEnglisharrow-up0·edit-24 days agoQuantum based resistors : https://en.m.wikipedia.org/wiki/Quantum_Hall_effect Quantum Hall effect → Applications → Electrical resistance standards : (…) Later, the 2019 revision of the SI fixed exact values of h and e, resulting in an exact RK = h/e2 = 25812.80745… Ω. (this is precise to at least 10 significant digits) Quantum Ampere Standard https://www.nist.gov/noac/technology/current-and-voltage/quantum-ampere-standard . https://www.nist.gov/noac/technology/current-and-voltage (…) Quantum-based measurements for voltage and current are moving toward greater miniaturization (…) (there also been research for defining a quantum based volt standard)
Quantum based resistors :
https://en.m.wikipedia.org/wiki/Quantum_Hall_effect
Quantum Hall effect →
Applications →
Electrical resistance standards :
(this is precise to at least 10 significant digits)
Quantum Ampere Standard
https://www.nist.gov/noac/technology/current-and-voltage/quantum-ampere-standard
.
https://www.nist.gov/noac/technology/current-and-voltage
(there also been research for defining a quantum based volt standard)