Synthetic dimension-induced conical intersections in Rydberg molecules

Abstract

We observe a series of conical intersections in the potential energy curves governing both the collision between a Rydberg atom and a ground-state atom and the structure of Rydberg molecules. By employing the electronic energy of the Rydberg atom as a synthetic dimension we circumvent the von Neumann-Wigner theorem. These conical intersections can occur when the Rydberg atom's quantum defect is similar in size to the electron--ground-state atom scattering phase shift divided by $\pi$, a condition satisfied in several commonly studied atomic species. The conical intersections have an observable consequence in the rate of ultracold $l$-changing collisions of the type Rb$(nf)$+Rb$(5s)\to$ Rb$(nl>3)$+Rb$(5s)$. In the vicinity of a conical intersection, this rate is strongly suppressed, and the Rydberg atom becomes nearly transparent to the ground-state atom.

arXiv comment5 pages, 3 figures

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Cited by in corpus (13)

• Realizing Su-Schrieffer-Heeger topological edge states in Rydberg-atom synthetic dimensions
• Rydberg superatoms: An artificial quantum system for quantum information processing and quantum optics
• Observation of vibrational dynamics of orientated Rydberg-atom-ion molecules
• Vibronic interactions in trilobite and butterfly Rydberg molecules
• Non-adiabatic decay of Rydberg-atom-ion molecules
• Non-adiabatic interaction effects in the spectra of ultralong-range Rydberg molecules
• Kato's theorem and ultralong-range Rydberg molecules
• Charged ultralong-range Rydberg trimers
• Nonadiabatic decay of metastable states on coupled linear potentials
• Internal diffraction dynamics of trilobite molecules
• $In$ $situ$ observation of non-polar to strongly polar atom-ion collision dynamics
• Homogeneous Electron Liquid in Arbitrary Dimensions: Exchange and Correlation Using the Singwi-Tosi-Land-Sjölander Approach
• Spin-orbit-dependent lifetimes of long-range Rydberg molecules