"Tunneling two-level systems" model of the low-temperature properties of glasses: Are "smoking-gun" tests possible?

Anthony J. Leggett, Dervis C. Vural

Research output: Contribution to journalArticle


Following a brief review of the "two-level (tunneling) systems" model of the low-temperature properties of amorphous solids ("glasses" ), we ask whether it is in fact the unique explanation of these properties as is usually assumed, concluding that this is not necessarily the case. We point out that (a) one specific form of the model is already experimentally refuted and (b) that a definitive test of the model in its most general form, while not yet carried out, would appear to be now experimentally feasible.

Original languageEnglish (US)
Pages (from-to)12966-12971
Number of pages6
JournalJournal of Physical Chemistry B
Issue number42
StatePublished - Nov 4 2013


ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry

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