Abstract
A first example of a two-state quantum system is an ensemble of independent spin-\(\frac{1}{2}\) particles, electrons, for instance, interacting with an external magnetic field via their magnetic dipole moment. We discuss the potential energy of the magnetic dipole interaction and recall the basic experiments that discovered the quantization of energy and angular momentum.
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References
Mohr, P.J., Taylor, B.N., Newell, D.B.: CODATA recommended values of the fundamental physical constants: 2006. Rev. Mod. Phys. 80, 633 (2008)
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© 2013 Springer-Verlag Berlin Heidelberg
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Dubbers, D., Stöckmann, HJ. (2013). A Most Simple Two-Level System. In: Quantum Physics: The Bottom-Up Approach. Graduate Texts in Physics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-31060-7_2
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DOI: https://doi.org/10.1007/978-3-642-31060-7_2
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-31059-1
Online ISBN: 978-3-642-31060-7
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