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A: Fachverband Atomphysik
A 29: Ultra-cold plasmas and Rydberg systems III (joint session A/Q)
A 29.5: Talk
Friday, March 13, 2020, 12:15–12:30, b305
Engineering non-binary Rydberg interactions via electron-phonon coupling — •Filippo Maria Gambetta1,2, Weibin Li1,2, Ferdinand Schmidt-Kaler3,4, and Igor Lesanovsky1,2 — 1School of Physics and Astronomy, University of Nottingham, Nottingham, United Kingdom — 2Centre for the Mathematics and Theoretical Physics of Quantum Non-equilibrium Systems, University of Nottingham, Nottingham, United Kingdom — 3QUANTUM, Institut für Physik, Johannes Gutenberg-Universität Mainz, Mainz, Germany — 4Helmholtz-Institut Mainz, Mainz, Germany
Coupling electronic and vibrational degrees of freedom of Rydberg atoms held in optical tweezer arrays offers a flexible mechanism for creating and controlling atom-atom interactions. In our work, we demonstrate that the state-dependent coupling between Rydberg atoms and local oscillator modes gives rise to two- and three-body interactions which are controllable through the strength of the local confinement. This approach even permits the cancellation of two-body terms such that three-body interactions become dominant. We analyze the structure of these interactions on two-dimensional bipartite lattice geometries and explore the impact of three-body interactions on system ground state on a square lattice. Our work shows a highly versatile handle for engineering multi-body interactions of quantum many-body systems in most recent manifestations on Rydberg lattice quantum simulators.
Reference: F. M. Gambetta, W. Li, F. Schmidt-Kaler, I. Lesanovsky, arXiv:1907.11664