Math Physics Seminar - Professor Yannick Meurice; Department of Physics & Astronomy, University of Iowa "Quantum simulating the compact Abelian Higgs model with qutrits

Sep 14, 2021

02:30 PM - 03:30 PM

Van Allen Hall, 309

30 North Dubuque Street, North Liberty, IA 52317

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Virtual Event

The lattice compact Abelian Higgs model is a non-perturbative regularized formulation of low-energy scalar quantum electrodynamics. In 1+1 dimensions, this model can be quantum simulated using a ladder-shaped optical lattice with Rydberg-dressed atoms. In this setup, one spatial dimension is used to carry the angular momentum of the quantum rotors.  One can use truncations corresponding to spin-2 and spin-1 to build local Hilbert spaces associated with the links of the lattice.


We argue that ladder-shaped configurable arrays of Rydberg atoms can be used for the same purpose. We make concrete proposals involving two and three Rydberg atoms to build one local spin-1 space (a qutrit).

We show that the building blocks of the Hamiltonian calculations are models with one and two spins.  We compare target and simulators using perturbative and numerical methods. The two-atom setup provides an easily controllable simulator of the one-spin model while the three-atom setup involves solving nonlinear equations.  We discuss approximate methods to couple two spin-1 spaces.

2:30 309 Van, 9/14

Zoom ID: 985 0142 0477

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