Phase space crystal vibrations: Chiral edge states with preserved time-reversal symmetry

Guo L, Peano V, Marquardt F (2022)

Publication Type: Journal article

Publication year: 2022

Journal

Physical Review B American Physical Society

Book Volume: 105

Article Number: 094301

Journal Issue: 9

DOI: 10.1103/PhysRevB.105.094301

Abstract

It was recently discovered that atoms subject to a time-periodic drive can give rise to a crystal structure in phase space. In this work, we point out that the atom-atom interactions give rise to collective phonon excitations of phase space crystal via a pairing interaction with intrinsically complex phases that can lead to a phononic Chern insulator, accompanied by topologically robust chiral transport along the edge of the phase space crystal. This topological phase is realized even in scenarios in which the time-reversal transformation is a symmetry, which is surprising because the breaking of time-reversal symmetry is a strict precondition for topological chiral transport in the standard setting of real space crystals. Our work has also important implications for the dynamics of two-dimensional charged particles in a strong magnetic field.

Involved external institutions

Max-Planck-Institut für die Physik des Lichts (MPL) / Max Planck Institute for the Science of Light DE Germany (DE)

How to cite

APA:

Guo, L., Peano, V., & Marquardt, F. (2022). Phase space crystal vibrations: Chiral edge states with preserved time-reversal symmetry. Physical Review B, 105(9). https://doi.org/10.1103/PhysRevB.105.094301

MLA:

Guo, Lingzhen, Vittorio Peano, and Florian Marquardt. "Phase space crystal vibrations: Chiral edge states with preserved time-reversal symmetry." Physical Review B 105.9 (2022).

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