A method for measuring the real part of the weak value of spin using non-zero rest mass particlesarXiv
A method for measuring the real part of the weak (local) value of spin is presented using a variant on the original Stern-Gerlach apparatus. The experiment utilises metastable helium in the 23S1 state. A full simulation using the impulsive approximation has been carried out and it predicts a displacement of the beam by ∆w = 17 − 33 μm. This is on the limit of our detector resolution and we will discuss ways of increasing ∆w. The simulation also indicates how we might observe the imaginary part of the weak value.
The article was published in: arXiv
This work was supported (in part) by the Fetzer Franklin Fund of the John E. Fetzer Memorial Trust.