Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Recent Progress in Many-Body Theories

Quantum Monte Carlo Study of Symmetry Breaking in a Double-Well Chain

James E. Gubernatis, David K Campbell, Xidi Wang

Published Jan 1, 1992• 2 citations
Publisher
DOI
10.1007/978-1-4615-3466-2_30

Related papers

Symmetry Breaking in a Quantum Double-Well Chain

James E. Gubernatis, David K Campbell, Xidi Wang

Springer proceedings in physics•Jan 1, 1992•0 citations

Feynman Path‐Integral Quantum Monte‐Carlo Simulations of One‐Dimensional Chains in the Presence of Attractive Intersite Interactions

Michael C. Böhm, J. Schulte, Luis Utrera

Abstract Feynman path‐integral quantum Monte‐Carlo (QMC) simulations are employed to investigate the ground‐state properties of the one‐dimensional Hubbard chain in the presence of attractive intersite interactions V. With increasing magnitude of the V elements the formation of domain structures causing a violation of the translational symmetry within the ID chain is observed. Domain structures differ from on‐site charge density wave (CDW) configurations in so far as their charge distribution shows random behaviour. The on‐site CDW is highly ordered. It is suggested that condensation transitions are position‐space concomitants of superconducting configurations of the ID chain. The formation of symmetry‐breaking domains is attenuated in ID chains with an average electron density 〈n〉 of 1.0. The dynamics of the electronic and spin degrees of freedom is studied by the fluctuations of the electronic charges 〈(Δn2)〉 and the local magnetic moments 〈(Δs2)〉.

physica status solidi (b)•Apr 1, 1993•2 citations

Symmetry breaking and thermal phase transition of the spin-1 quantum magnet with SU(3) symmetry on the simple cubic lattice

Nils Caci, Dominik Chudy, Pablo Daniel Mendez Mariscal +2 more

Using a combined analysis from Poisson-Dirichlet and symmetry-breaking calculations as well as quantum Monte Carlo simulations, we examine the ordered phase and the thermal phase transition of the three-dimensional spin-1 quantum magnet on the simple cubic lattice with bilinear and biquadratic interactions and SU(3) internal symmetry. We obtain exact results for the order parameter distribution function that compare well to the quantum Monte Carlo data. Furthermore, based on a detailed finite-size analysis, we provide evidence that the thermal melting transition at the SU(3) point is either weakly first order in this system or, if continuous, it falls beyond the unitarity bounds of conformal field theory.

arXiv:2505.17772•Physical review. B./Physical review. B•Sep 25, 2025•0 citations

Quantum Monte Carlo study of spin chains

Wataru Yokozeki, Kazuo Shiiki, Mitsuru Fukuchi

Physica A Statistical Mechanics and its Applications•Jan 1, 1996•0 citations

Quantum Monte Carlo and Electronic Structure

R. N. Barnett, William A. Lester

Computational chemistry - reviews of current trends•May 1, 1997•2 citations

The Classical XY-Chain with an In-Plane Magnetic Field

Thomas Delica, Rainer W Gerling, Hajo Leschke

Thermal properties of the one-dimensional classical XY-model in a symmetry-breaking field are studied by using the transfer-kernel method. The results complete earlier data from Monte-Carlo simulations.

Physica Scripta•Jan 1, 1987•6 citations
Abstract Feynman path‐integral quantum Monte‐Carlo (QMC) simulations are employed to investigate the ground‐state properties of the one‐dimensional Hubbard chain in the presence of attractive intersite interactions V. With increasing magnitude of the V elements the formation of domain structures causing a violation of the translational symmetry within the ID chain is observed. Domain structures differ from on‐site charge density wave (CDW) configurations in so far as their charge distribution shows random behaviour. The on‐site CDW is highly ordered. It is suggested that condensation transitions are position‐space concomitants of superconducting configurations of the ID chain. The formation of symmetry‐breaking domains is attenuated in ID chains with an average electron density 〈n〉 of 1.0. The dynamics of the electronic and spin degrees of freedom is studied by the fluctuations of the electronic charges 〈(Δn2)〉 and the local magnetic moments 〈(Δs2)〉.
Using a combined analysis from Poisson-Dirichlet and symmetry-breaking calculations as well as quantum Monte Carlo simulations, we examine the ordered phase and the thermal phase transition of the three-dimensional spin-1 quantum magnet on the simple cubic lattice with bilinear and biquadratic interactions and SU(3) internal symmetry. We obtain exact results for the order parameter distribution function that compare well to the quantum Monte Carlo data. Furthermore, based on a detailed finite-size analysis, we provide evidence that the thermal melting transition at the SU(3) point is either weakly first order in this system or, if continuous, it falls beyond the unitarity bounds of conformal field theory.