Top
Realization of a Density-Dependent Peierls Phase in a Synthetic, Spin-Orbit Coupled Rydberg System
7879
post-template-default,single,single-post,postid-7879,single-format-standard,mkd-core-1.0,highrise child-child-ver-1.0.0,highrise-ver-1.2,,mkd-smooth-page-transitions,mkd-ajax,mkd-grid-1300,mkd-blog-installed,mkd-header-standard,mkd-sticky-header-on-scroll-down-up,mkd-default-mobile-header,mkd-sticky-up-mobile-header,mkd-dropdown-slide-from-bottom,mkd-dark-header,mkd-full-width-wide-menu,mkd-header-standard-in-grid-shadow-disable,mkd-search-covers-header,wpb-js-composer js-comp-ver-6.2.0,vc_responsive

Blog

Realization of a Density-Dependent Peierls Phase in a Synthetic, Spin-Orbit Coupled Rydberg System

The group at Institut d’Optique (Université Paris-Saclay and CNRS) publishes a paper in Physical Review X demonstrating one of the basic building blocks towards the quantum simulation of two-dimensional topological matter. Using resonant dipole-dipole interactions between Rydberg levels, they show, in a minimalistic setup of just three atoms arranged in an equilateral triangle, how a spin excitation moves in a chiral way (i.e. with a preferred rotation direction) due to the spin-orbit coupling intrinsic to the dipolar interaction.

The direction of motion can be reversed at will by changing experimental parameters. More strikingly, the presence of a second spin excitation hinders the chiral motion, due to the hard-core character of the spin excitations. This behavior can be interpreted in terms of anyons, particles that display exotic quantum statistical properties, differing from the usual bosonic and fermionic statistics.

A natural extension of this work will be to study similar dynamics in larger systems, where exotic phases of matter are expected to appear.

V. Lienhard et al., “Realization of a Density-Dependent Peierls Phase in a Synthetic, Spin-Orbit Coupled Rydberg System”, Phys. Rev. Lett. 124, 023201 (2020).

DOI: https://doi.org/10.1103/PhysRevX.10.021031V