Proposal for the Quantum Simulation of the \mathbb CP(2) Model on Optical Lattices

Laflamme, Catherine; Evans, Wynne; Dalmonte, Marcello; Gerber, Urs; Mejía-Díaz, Héctor; Bietenholz, Wolfgang; Wiese, Uwe-Jens; Zoller, Peter (2016). Proposal for the Quantum Simulation of the \mathbb CP(2) Model on Optical Lattices. PoS - proceedings of science, LATTICE2015, p. 311. Scuola Internazionale Superiore di Studi Avanzati SISSA

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The 2d CP(N 1) models share a number of features with QCD, like asymptotic freedom, a dynamically generated mass gap and topological sectors. They have been formulated and analysed successfully in the framework of the so-called D-theory, which provides a smooth access to the continuum limit. In that framework, we propose an experimental set-up for the quantum simulation of the CP(2) model. It is based on ultra-cold Alkaline-Earth Atoms (AEAs) located on the sites of an optical lattice, where the nuclear spins represent the relevant degrees of freedom. We present numerical results for the correlation length and for the real time decay of a false vacuum, to be compared with such a future experiment. The latter could also enable the exploration of q-vacua and of the phase diagram at finite chemical potentials, since it does not suffer from any
sign problem.

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