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Floquet many-body engineering: topology and many-body physics in phase space lattices

Liang, Pengfei; Marthaler, Michael; Guo, Lingzhen

Hamiltonians which are inaccessible in static systems can be engineered in periodically driven many-body systems, i.e., Floquet many-body systems. We propose to use interacting particles in a one-dimensional (1D) harmonic potential with periodic kicking to investigate two-dimensional topological and many-body physics. Depending on the driving parameters, the Floquet Hamiltonian of single kicked harmonic oscillator has various lattice structures in phase space. The noncommutative geometry of phase space gives rise to the topology of the system. We investigate the effective interactions of particles in phase space and find that the point-like contact interaction in quasi-1D real space becomes a long-rang Coulomb-like interaction in phase space, while the hardcore interaction in pure-1D real space becomes a confinement quark-like potential in phase space. We also find that the Floquet exchange interaction does not disappear even in the classical limit, and can be viewed as an effective long-range spin–spin interaction induced by collision. Our proposal may provide platforms to explore new physics and exotic phases by Floquet many-body engineering.

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Verlagsausgabe §
DOI: 10.5445/IR/1000082049
Veröffentlicht am 16.04.2018
DOI: 10.1088/1367-2630/aaa7c3
Zitationen: 7
Web of Science
Zitationen: 7
Zugehörige Institution(en) am KIT Institut für Theoretische Festkörperphysik (TFP)
Institut für Theorie der Kondensierten Materie (TKM)
Publikationstyp Zeitschriftenaufsatz
Jahr 2018
Sprache Englisch
Identifikator ISSN: 1367-2630
KITopen-ID: 1000082049
Erschienen in New journal of physics
Band 20
Heft 2
Seiten Article: 023043
Bemerkung zur Veröffentlichung Gefördert durch den KIT-Publikationsfonds
Nachgewiesen in Scopus
Web of Science
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