Article
Ripples in a string coupled to Glauber spins
Author/s | Bonilla, L.L.
Carpio, A. Prados Montaño, Antonio Rosales, R.R. |
Department | Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear |
Publication Date | 2012 |
Deposit Date | 2020-05-13 |
Published in |
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Abstract | Each oscillator in a linear chain (a string) interacts with a local Ising spin in contact with a thermal bath.
These spins evolve according to Glauber dynamics. Below a critical temperature, there appears an equilibrium ... Each oscillator in a linear chain (a string) interacts with a local Ising spin in contact with a thermal bath. These spins evolve according to Glauber dynamics. Below a critical temperature, there appears an equilibrium, time-independent, rippled state in the string that is accompanied by a nonzero spin polarization. On the other hand, the system is shown to form “metastable,” nonequilibrium long-lived ripples in the string for slow spin relaxation. The system vibrates rapidly about these quasistationary states, which can be described as snapshots of a coarse-grained stroboscopic map. For moderate observation times, ripples are observed irrespective of the final thermodynamically stable state (rippled or not). Interestingly, the system can be considered as a “minimal” model to understand rippling in clamped graphene sheets. |
Funding agencies | Ministerio de Economía y Competitividad (MINECO). España |
Project ID. | No. FIS2011- 28838-C02-01 (L.L.B.), No. FIS2011-28838-C02-02 |
Citation | Bonilla, L.L., Carpio, A., Prados Montaño, A. y Rosales, R.R. (2012). Ripples in a string coupled to Glauber spins. Physical Review E, 85 (3), 031125-1-031125-7. |
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