Scalable, ab initio protocol for quantum simulating SU(N ×
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· 2024
· Open Access
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· DOI: https://doi.org/10.22331/q-2024-05-23-1359
· OA: W4398232512
We propose a protocol for the scalable quantum simulation of SU(<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>N</mml:mi></mml:math>)<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mo>&#x00D7;</mml:mo></mml:math>U(1) lattice gauge theories with alkaline-earth like atoms in optical lattices in both one- and two-dimensional systems. The protocol exploits the combination of naturally occurring SU(<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>N</mml:mi></mml:math>) pseudo-spin symmetry and strong inter-orbital interactions that is unique to such atomic species. A detailed ab initio study of the microscopic dynamics shows how gauge invariance emerges in an accessible parameter regime, and allows us to identify the main challenges in the simulation of such theories. We provide quantitative results about the requirements in terms of experimental stability in relation to observing gauge invariant dynamics, a key element for a deeper analysis on the functioning of such class of theories in both quantum simulators and computers.
