Using the no-signaling condition for constraining the nonidealness of a Stern-Gerlach setup

Abstract

On the basis of a variant of the EPR-Bohm example, we show that the no-signaling condition can be employed as a useful tool for deriving a constraint on a suitably defined measure of the `nonidealness' of a Stern-Gerlach(SG) setup. In this demonstration, a key ingredient is provided by the characteristics of the exact solution of the time-dependent Schroedinger equation as applied to a most general SG setup.

References in corpus (4)

• General properties of Nonsignaling Theories
• Distinguishability of apparatus states in quantum measurement in the Stern-Gerlach experiment
• Quantum mechanical description of Stern-Gerlach experiments
• Helstrom Theorem by No-Signaling Condition

Cited by in corpus (2)

• Faithful Pointer for qubit measurement
• A testable prediction of the no-signalling condition using a variant of the EPR-Bohm example