Phase transition for quenched coupled replicas in a plaquette spin model of glasses
We study a three-dimensional plaquette spin model whose low temperature dynamics is glassy, due to localized defects and effective kinetic constraints. The thermodynamics of this system is smooth at all temperatures. We show that coupling it to a second system with a fixed (quenched) configuration l...
| Main Authors: | , |
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| Format: | Article |
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American Physical Society
2016
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| Online Access: | https://eprints.nottingham.ac.uk/34756/ |
| _version_ | 1848794928166993920 |
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| author | Jack, Robert L. Garrahan, Juan P. |
| author_facet | Jack, Robert L. Garrahan, Juan P. |
| author_sort | Jack, Robert L. |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | We study a three-dimensional plaquette spin model whose low temperature dynamics is glassy, due to localized defects and effective kinetic constraints. The thermodynamics of this system is smooth at all temperatures. We show that coupling it to a second system with a fixed (quenched) configuration leads to a phase transition, at finite coupling. The order parameter is the overlap between the copies, and the transition is between phases of low and high overlap. We find critical points whose properties are consistent with random-field Ising universality. We analyze the interfacial free energy cost between the high- and low-overlap states that coexist at (and below) the critical point, and we use this cost as the basis for a finite-size scaling analysis. We discuss these results in the context of mean-field and dynamical facilitation theories of the glass transition. |
| first_indexed | 2025-11-14T19:23:59Z |
| format | Article |
| id | nottingham-34756 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:23:59Z |
| publishDate | 2016 |
| publisher | American Physical Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-347562020-05-04T17:38:24Z https://eprints.nottingham.ac.uk/34756/ Phase transition for quenched coupled replicas in a plaquette spin model of glasses Jack, Robert L. Garrahan, Juan P. We study a three-dimensional plaquette spin model whose low temperature dynamics is glassy, due to localized defects and effective kinetic constraints. The thermodynamics of this system is smooth at all temperatures. We show that coupling it to a second system with a fixed (quenched) configuration leads to a phase transition, at finite coupling. The order parameter is the overlap between the copies, and the transition is between phases of low and high overlap. We find critical points whose properties are consistent with random-field Ising universality. We analyze the interfacial free energy cost between the high- and low-overlap states that coexist at (and below) the critical point, and we use this cost as the basis for a finite-size scaling analysis. We discuss these results in the context of mean-field and dynamical facilitation theories of the glass transition. American Physical Society 2016-02-02 Article PeerReviewed Jack, Robert L. and Garrahan, Juan P. (2016) Phase transition for quenched coupled replicas in a plaquette spin model of glasses. Physical Review Letters, 116 (5). 055702/1-055702/5. ISSN 1079-7114 http://dx.doi.org/10.1103/PhysRevLett.116.055702 doi:10.1103/PhysRevLett.116.055702 doi:10.1103/PhysRevLett.116.055702 |
| spellingShingle | Jack, Robert L. Garrahan, Juan P. Phase transition for quenched coupled replicas in a plaquette spin model of glasses |
| title | Phase transition for quenched coupled replicas in a plaquette spin model of glasses |
| title_full | Phase transition for quenched coupled replicas in a plaquette spin model of glasses |
| title_fullStr | Phase transition for quenched coupled replicas in a plaquette spin model of glasses |
| title_full_unstemmed | Phase transition for quenched coupled replicas in a plaquette spin model of glasses |
| title_short | Phase transition for quenched coupled replicas in a plaquette spin model of glasses |
| title_sort | phase transition for quenched coupled replicas in a plaquette spin model of glasses |
| url | https://eprints.nottingham.ac.uk/34756/ https://eprints.nottingham.ac.uk/34756/ https://eprints.nottingham.ac.uk/34756/ |