Motivated by the fact that the low-energy properties of the Kondo model can be effectively simulated in spin chains, we study the realization of the effect with bond impurities in ultracold bosonic lattices at half filling. After presenting a discussion of the effective theory and of the mapping of the bosonic chain onto a lattice spin Hamiltonian, we provide estimates for the Kondo length as a function of the parameters of the bosonic model. We point out that the Kondo length can be extracted from the integrated real-space correlation functions, which are experimentally accessible quantities in experiments with cold atoms.

Kondo length in bosonic lattices / Giuliano, Domenico; Sodano, Pasquale; Trombettoni, Andrea. - In: PHYSICAL REVIEW A. - ISSN 2469-9926. - 96:3(2017), pp. 1-15. [10.1103/PhysRevA.96.033603]

Kondo length in bosonic lattices

Trombettoni, Andrea
2017-01-01

Abstract

Motivated by the fact that the low-energy properties of the Kondo model can be effectively simulated in spin chains, we study the realization of the effect with bond impurities in ultracold bosonic lattices at half filling. After presenting a discussion of the effective theory and of the mapping of the bosonic chain onto a lattice spin Hamiltonian, we provide estimates for the Kondo length as a function of the parameters of the bosonic model. We point out that the Kondo length can be extracted from the integrated real-space correlation functions, which are experimentally accessible quantities in experiments with cold atoms.
2017
96
3
1
15
033603
http://harvest.aps.org/v2/bagit/articles/10.1103/PhysRevA.96.033603/apsxml
https://arxiv.org/abs/1704.07485
Giuliano, Domenico; Sodano, Pasquale; Trombettoni, Andrea
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11767/71189
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