Spontaneous Symmetry Breaking in the Quantum Sine-Gordon Model
S.G. Chung
TL;DR
This paper investigates spontaneous symmetry breaking in the quantum sine-Gordon model using density matrix renormalization group techniques, revealing a phase diagram dependent on coupling strength and system size.
Contribution
It provides the first detailed phase diagram of the quantum sine-Gordon model highlighting the conditions for symmetry breaking.
Findings
Identification of phase boundaries for symmetry breaking
Dependence of phase transition on coupling constant
Finite size effects on symmetry breaking
Abstract
The spontaneous symmetry breaking in the quantum sine-Gordon model is studied by a density matrix renormalization group. A phase diagram in the coupling constant - system size plane is obtained.
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Taxonomy
TopicsQuantum many-body systems · Physics of Superconductivity and Magnetism · Nonlinear Photonic Systems