On confined fractional charges: A simple model

F. Pollmann; P. Fulde

doi:10.1209/epl/i2006-10092-x

On confined fractional charges: A simple model

F. Pollmann
, P. Fulde

MPI für Physik Komplexer Systeme

Research output: Contribution to journal › Article › peer-review

13 Scopus citations

Abstract

We address the question whether features known from quantum chromodynamics (QCD) can possibly also show up in solid-state physics. It is shown that spinless fermions of charge e on a checkerboard lattice with nearest-neighbor repulsion provide for a simple model of confined fractional charges. After defining a proper vacuum the system supports excitations with charges ±e/2 attached to the ends of strings. There is a constant confining force acting between the fractional charges. It results from a reduction of vacuum fluctuations and a polarization of the vacuum in the vicinity of the connecting strings.

Original language	English
Pages (from-to)	133-138
Number of pages	6
Journal	Europhysics Letters
Volume	75
Issue number	1
DOIs	https://doi.org/10.1209/epl/i2006-10092-x
State	Published - 1 Jul 2006
Externally published	Yes

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On confined fractional charges: A simple model

Abstract

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