Abstract
Condensed matter physics offers various examples of two-state quantum systems. We focus on two such examples. Glasses at very low temperature, with their excessive heat capacity and other peculiar properties, since long are known to behave as if they were some kind of a two-state quantum system. Spin echo experiments on glasses helped to elucidate the mechanism behind this phenomenon. The second example involves superconducting Josephson junctions, macroscopic two-state quantum devices that have applications in metrology, magnetometry, and quantum informatics.
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Dubbers, D., Stöckmann, HJ. (2013). Two-State Systems in Condensed Matter. In: Quantum Physics: The Bottom-Up Approach. Graduate Texts in Physics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-31060-7_13
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DOI: https://doi.org/10.1007/978-3-642-31060-7_13
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-31059-1
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