In physics, a quantum solid is a type of solid that is "intrinsically restless", in the sense that atoms continuously vibrate about their position and exchange places even at absolute zero.[1] The archetypal quantum solid is low density solid helium.
References
Polturak, Emil; Gov, Nir (2003). "Inside a quantum solid". Contemporary Physics. Informa UK Limited. 44 (2): 145–151. doi:10.1080/0010751021000029633. ISSN 0010-7514.
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