AI Article Synopsis
- The study examines how various metastable configurations in a chain of Ising spins, influenced by both first- and second-neighbor interactions, behave over time under Kawasaki dynamics.
- Different dynamic exponents are identified based on the coupling ratios and signs, with these metrics derived from finite-size scaling analyses of the relaxation times.
- At low temperatures, the researchers use exact diagonalizations of the evolution operator to calculate relaxation times, concluding that without metastability, the dynamics remain consistently diffusive.
Article Abstract
We investigate the large-time scaling regimes arising from a variety of metastable structures in a chain of Ising spins with both first- and second-neighbor couplings while subject to Kawasaki dynamics. Depending on the ratio and sign of these former, different dynamic exponents are suggested by finite-size scaling analyses of relaxation times. At low but nonzero temperatures these are calculated via exact diagonalizations of the evolution operator in finite chains under several activation barriers. In the absence of metastability the dynamics is always diffusive.
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| http://dx.doi.org/10.1103/PhysRevE.93.042120 | DOI Listing |
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