In this work we introduce boundary time crystals. Here continuous time-translation symmetry breaking occurs only in a macroscopic fraction of a many-body quantum system. After introducing their definition and properties, we analyze in detail a solvable model where an accurate scaling analysis can be performed. The existence of the boundary time crystals is intimately connected to the emergence of a time-periodic steady state in the thermodynamic limit of a many-body open quantum system. We also discuss connections to quantum synchronization.
Boundary Time Crystals / Iemini, F.; Russomanno, A.; Keeling, J.; Schiro', Antonio; Dalmonte, M.; Fazio, R.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 121:3(2018), p. 035301. [10.1103/PhysRevLett.121.035301]
Boundary Time Crystals
Russomanno A.;SCHIRO', ANTONIO;Fazio R.
2018
Abstract
In this work we introduce boundary time crystals. Here continuous time-translation symmetry breaking occurs only in a macroscopic fraction of a many-body quantum system. After introducing their definition and properties, we analyze in detail a solvable model where an accurate scaling analysis can be performed. The existence of the boundary time crystals is intimately connected to the emergence of a time-periodic steady state in the thermodynamic limit of a many-body open quantum system. We also discuss connections to quantum synchronization.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
