Can Electrons Change Spin Sign?

o_neg
Messages
4
Reaction score
0
Hi,

Is it possible for an electron to change the sign of its spin (under some interaction)?

i saw that some of the calculations in the Ising model assumes that the electron is changing its spin sign if it reduce the energy of interaction with its neighbors


Thanks,
Ori.
 
Physics news on Phys.org
o_neg said:
Hi,

Is it possible for an electron to change the sign of its spin (under some interaction)?

i saw that some of the calculations in the Ising model assumes that the electron is changing its spin sign if it reduce the energy of interaction with its neighbors


Thanks,
Ori.
The spin of the electron is always 1/2. What can change is a component of the spin along some axis. For example, the z component of the spin can change from -1/2 to 1/2 or vice versa through interactions.
 
nrqed said:
The spin of the electron is always 1/2. What can change is a component of the spin along some axis. For example, the z component of the spin can change from -1/2 to 1/2 or vice versa through interactions.

Thats make more sense to me , Thanks.
 
I agree with nrged + Probability of getting 1/2 or -1/2 at the time of continuous measurement is 1/2 . I mean 50-50 :)
 
SuperStringboy said:
I agree with nrged + Probability of getting 1/2 or -1/2 at the time of continuous measurement is 1/2 . I mean 50-50 :)

That'd depend entirely on the system.
 
Not an expert in QM. AFAIK, Schrödinger's equation is quite different from the classical wave equation. The former is an equation for the dynamics of the state of a (quantum?) system, the latter is an equation for the dynamics of a (classical) degree of freedom. As a matter of fact, Schrödinger's equation is first order in time derivatives, while the classical wave equation is second order. But, AFAIK, Schrödinger's equation is a wave equation; only its interpretation makes it non-classical...
Insights auto threads is broken atm, so I'm manually creating these for new Insight articles. Towards the end of the first lecture for the Qiskit Global Summer School 2025, Foundations of Quantum Mechanics, Olivia Lanes (Global Lead, Content and Education IBM) stated... Source: https://www.physicsforums.com/insights/quantum-entanglement-is-a-kinematic-fact-not-a-dynamical-effect/ by @RUTA
Is it possible, and fruitful, to use certain conceptual and technical tools from effective field theory (coarse-graining/integrating-out, power-counting, matching, RG) to think about the relationship between the fundamental (quantum) and the emergent (classical), both to account for the quasi-autonomy of the classical level and to quantify residual quantum corrections? By “emergent,” I mean the following: after integrating out fast/irrelevant quantum degrees of freedom (high-energy modes...

Similar threads

Replies
19
Views
2K
Replies
6
Views
2K
Replies
3
Views
710
Replies
45
Views
3K
Replies
2
Views
2K
Back
Top