Compact quantum electrodynamics in 2+1 dimensions and spinon deconfinement: A renormalization group analysis
Year: 2008
Type: article
Abstract: We discuss compact $2+1$ dimensional Maxwell electrodynamics coupled to fermionic matter with $N$ replica. For large enough $N$, the latter corresponds to an effective theory for the nearest neighbor $\mathrm{SU}(N)$ Heisenberg antiferromagnet, in which the fermions represent solitonic excitations known as spinons. Here, we show that the spinons are deconfined for $N>{N}_{c}=36$, thus leading to an insulating state known as spin liquid. A previous analysis considerably underestimated the value of ${N}_{c}$. We show further that for $20
Source: Physical Review B
Authors: Flavio S. Nogueira, Hagen Kleinert
Institution: Freie Universität Berlin
Language: Latvian
Subfield: Condensed Matter Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2126328286