quax
Best account on a popular science site I've seen yet. Much better than phys.org for instance. Most science journo's don't even seem to grasp the difference between a elementary and a quasi-particle. Kudos!
Michiel Mitchell
and these mass-less electrons... what would those be made up of... this could mean that anything can be made mass-less.... Sweet!!!!
Brian M
Confusing, ok a fermion makes up matter so has mass, and a boson carries force, got that. However Weyl fermions have no mass, and can make up massless electrons. If they have no mass but presumable have force due to having a charge, aren't they bosons rather than fermions?
Maybe I need to hit the physics books!
Robert in Vancouver
Thankfully, real scientists never say 'the science is settled'. If they did, they would never look for or find particles like the Wyel.
Infact, real scientists are still studying, testing, and questioning the theory of gravity and other theories that most people consider as 'settled science.'
tsvieps
If it is massless and barely interacts, how is it useful for computing or memory devices? Photons are massless, but have momentum and energy. These Weyl fermions sound similar in some ways. But are photons used in computer devices? Photons certainly are used in communication devices as they can be created in bunches as pulses and then detected. But the article was not clear for me on how Weyl fermions can be used in a practical way, even if they can help us better understand the substructure of electrons.
BillyMayfield
this is the missing particle i need for my transporter beam. i need larger dylithium crystal.convert my fermions into wyels them shoot them on a bosom then reconvert into fermions. i am transported.
NoahCowper
dose this have any thing to do with Tesla's experiments and transmitting electricity instantly or 500 times faster then the speed of light?
quax
Oh well, based on the comments here, the concept of quasi-particle is nevertheless not sinking in at all.
These are not "massless" electrons. These things are excitations in the crystal structure that allow electrons to shed resistive mass (i.e. the additional drag caused by the surrounding matter). Quasi-particles obey the same quantum mechanical laws as the real thing but are collective interaction phenomena.
Kpar
Billy Mayfield..."shoot them on a bosom"... really? I'm not sure which website you think you are on.
Quax... I was wondering... "electrons created from Weyl fermions"... is there a new kind (or species) of electron? I must have missed that- of course, now that I am in my dotage, maybe I just forgot....
starship
"massless" - does this mean 'no substance' as in 'non-materiality'? Plato argued for non-material substance which was non-extended. Others have argued for non-material substances that were extended. Today science (and philosophy) I think would not even consent to the concept of non-materiality (except maybe around coffee-table discussions where everything goes).