SO(3) "Nuclear Physics" with ultracold Gases

Rico, E., Dalmonte, M., Zoller, P., Banerjee, D., Bögli, M., Stebler, P. and Wiese, Uwe-Jens (2018) SO(3) "Nuclear Physics" with ultracold Gases. Annals of Physics, 393, 466-483. (doi:10.1016/j.aop.2018.03.020).

Abstract

An ab initio calculation of nuclear physics from Quantum Chromodynamics (QCD), the fundamental gauge theory of the strong interaction, remains an outstanding challenge. Here, we discuss the emergence of key elements of nuclear physics using an lattice gauge theory as a toy model for QCD. We show that this model is accessible to state-of-the-art quantum simulation experiments with ultracold atoms in an optical lattice. First, we demonstrate that our model shares characteristic many-body features with QCD, such as the spontaneous breakdown of chiral symmetry, its restoration at finite baryon density, as well as the existence of few-body bound states. Then we show that in the one-dimensional case, the dynamics in the gauge invariant sector can be encoded as a spin
Heisenberg model, i.e., as quantum magnetism, which has a natural realization with bosonic mixtures in optical lattices, and thus sheds light on the connection between non-Abelian gauge theories and quantum magnetism.

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Contributors

Author: D. Banerjee

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