Quantum metamorphism Article Swipe
YOU?
·
· 2020
· Open Access
·
· DOI: https://doi.org/10.1103/physrevb.102.224307
· OA: W3096199917
Crystals form regular and robust structures that under extreme conditions can\nmelt and recrystallize into different arrangements in a process that is called\ncrystal metamorphism. While crystals exist due to the breaking of a continuous\ntranslation symmetry in space, it has recently been proposed that discrete\ncrystalline order can also emerge in time and give raise to a novel phase of\nmatter named discrete time crystal (DTC). In this paper, we join these two\nideas and propose a model for quantum metamorphism between two DTCs of\ndifferent periodicity, a 2T and 4T-DTC. In our model the conditions for\nmetamorphism come from the modulation of perturbative terms in the 4T-DTC\nHamiltonian that gradually melt its structure and transform it into a 2T-DTC.\nThis process is studied in detail from the viewpoint of manybody physics of\nperiodically driven systems. We also propose a protocol to experimentally\nobserve quantum metamorphism using current quantum technology.\n
