Triplet versus singlet entangled states in teaching the Einstein-Podolsky-Rosen paradox

Author: Shegelski Mark R.A.  

Publisher: IOP Publishing

ISSN: 0143-0807

Source: European Journal of Physics, Vol.34, Iss.3, 2013-05, pp. : 773-776

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Abstract

The Einstein-Podolsky-Rosen paradox is considered using spin-&$frac{1}{2}$; singlet and triplet states prepared in the z-direction, after which measurements are made in a different direction, the x-direction, for example. An unexpected outcome and its usefulness for teaching is reported. The material will be of interest to upper-year undergraduate quantum mechanics instructors and students.