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Floquet many-body e...
Floquet many-body engineering: topology and many-body physics in phase space lattices
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- Liang, Pengfei (författare)
- Beijing Normal University,Karlsruher Institut für Technologie (KIT),Karlsruhe Institute of Technology (KIT)
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- Marthaler, Michael (författare)
- Karlsruher Institut für Technologie (KIT),Karlsruhe Institute of Technology (KIT),Universität des Saarlandes
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- Guo, Lingzhen, 1982 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology,Karlsruher Institut für Technologie (KIT),Karlsruhe Institute of Technology (KIT)
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(creator_code:org_t)
- 2018-04-03
- 2018
- Engelska.
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Ingår i: New Journal of Physics. - : IOP Publishing. - 1367-2630. ; 20:2
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Abstract
Ämnesord
Stäng
- 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.
Ämnesord
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
- NATURVETENSKAP -- Matematik -- Matematisk analys (hsv//swe)
- NATURAL SCIENCES -- Mathematics -- Mathematical Analysis (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Nyckelord
- topological physics
- Floquet exchange interaction
- Floquet physics
- phase space dynamics
- long-range interaction
- many-body dynamics
- stroboscopic dynamics
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- ref (ämneskategori)
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