Insights Blog
-- Browse All Articles --
Physics Articles
Physics Tutorials
Physics Guides
Physics FAQ
Math Articles
Math Tutorials
Math Guides
Math FAQ
Education Articles
Education Guides
Bio/Chem Articles
Technology Guides
Computer Science Tutorials
Forums
Classical Physics
Quantum Physics
Quantum Interpretations
Special and General Relativity
Atomic and Condensed Matter
Nuclear and Particle Physics
Beyond the Standard Model
Cosmology
Astronomy and Astrophysics
Other Physics Topics
Trending
Featured Threads
Log in
Register
What's new
Search
Search
Search titles only
By:
Classical Physics
Quantum Physics
Quantum Interpretations
Special and General Relativity
Atomic and Condensed Matter
Nuclear and Particle Physics
Beyond the Standard Model
Cosmology
Astronomy and Astrophysics
Other Physics Topics
Menu
Log in
Register
Navigation
More options
Contact us
Close Menu
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Forums
Physics
High Energy, Nuclear, Particle Physics
Neutrino Helicity and Spin Uncertainty
Reply to thread
Message
[QUOTE="Coltrane8, post: 6337062, member: 677289"] [B]TL;DR Summary:[/B] Can I change helicity by measuring Spin in the perpendicular direction of motion, in accordance to commutation rules and uncertainty of Spin operators? In the context of non relativistic quantum mechanics, or better, if I consider the neutrino's mass to be zero, the phrase seems to me puzzling. What I know is that if I know the direction of motion, I know the spin projection onto that direction, say ##\hat{z}##-direction. But to not violate Heisenberg's Uncertainty, if I manage to measure Spin in a perpendicular direction of motion, say ##S_x##, [B]now helicity must be undetermined[/B]. And to be consistent if I subsequently measure ##S_z## (or helicity), I can have the same or the opposite helicity. So, if a measure change helicity (to not to violates Heisenberg), it would be more precise to talk about left-handed neutrinos only in the context of some interaction, without excluding a priori that I can change it's helicity by an accurate measurement of Spin on the perpendicular direction of motion? [/QUOTE]
Insert quotes…
Post reply
Forums
Physics
High Energy, Nuclear, Particle Physics
Neutrino Helicity and Spin Uncertainty
Back
Top