Topological phonons in arrays of ultracold dipolar particles

• DOI: 10.22331/q-2022-06-07-731
• Publication Date: 2022-06-07T16:28:57Z
• Authors: Marco Di Liberto; Andreas Kruckenha...; Peter Zoller; Mikhail A. Baranov
• Keywords: 0301 basic medicine; Quantum Physics; 03 medical and health sciences; Condensed Matter - Mesoscale and Nanoscale Physics; Quantum Gases (cond-mat.quant-gas); Physics; QC1-999; Mesoscale and Nanoscale Physics (cond-mat.mes-hall); FOS: Physical sciences; Condensed Matter - Quantum Gases; Quantum Physics (quant-ph)

The notion of topology in physical systems is associated with the existence a nonlocal ordering that insensitive to large class perturbations. This brings robustness behaviour system and can serve as ground for developing new fault-tolerant applications. We discuss how design study variety topology-related phenomena phonon-like collective modes arrays ultracold polarized dipolar particles. These are coherently propagating vibrational excitations, corresponding oscillations particles around their equilibrium positions, which exist regime where long-range interactions dominate over single-particle motion. demonstrate such offer distinct versatile tool investigate wide range topological effects a<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow class="MJX-TeXAtom-ORD"><mml:mtext class="MJX-tex-mathit" mathvariant="italic">single experimental setup</mml:mtext></mml:mrow></mml:math>with chosen underlying crystal structure by simply controlling anisotropy via orientation external polarizing field. Our results show provide promising unifying platform phononic modes.