Classical Many-Body Time Crystals

Discrete time crystals are a many-body state of matter where the extensive system's dynamics are slower than the forces acting on it. Nowadays, there is a growing debate regarding the specific properties required to demonstrate such a many-body state, alongside several experimental realizations...

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Vydané v:Physical review letters Ročník 123; číslo 12; s. 1
Hlavní autori: Heugel, Toni L., Oscity, Matthias, Eichler, Alexander, Zilberberg, Oded, Chitra, R.
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: College Park American Physical Society 20.09.2019
Predmet:
Bifurcation theory
Broken symmetry
Crystals
Mechanical oscillators
ISSN:0031-9007, 1079-7114, 1079-7114
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Shrnutí:Discrete time crystals are a many-body state of matter where the extensive system's dynamics are slower than the forces acting on it. Nowadays, there is a growing debate regarding the specific properties required to demonstrate such a many-body state, alongside several experimental realizations. In this work, we provide a simple and pedagogical framework by which to obtain many-body time crystals using parametrically coupled resonators. In our analysis, we use classical period-doubling bifurcation theory and present a clear distinction between single-mode time-translation symmetry breaking and a situation where an extensive number of degrees of freedom undergo the transition. We experimentally demonstrate this paradigm using coupled mechanical oscillators, thus providing a clear route for time crystal realizations in real materials.
Bibliografia:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:0031-9007
1079-7114
1079-7114
DOI:10.1103/PhysRevLett.123.124301