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Replica Symmetry Breaking in Trajectories of a Driven Brownian Particle
Masahiko Ueda1, Shin-ichi Sasa1
1Department of Physics, Kyoto University, Kyoto 606-8502, Japan.
Abstract:
We study a Brownian particle passively driven by a field obeying the noisy Burgers' equation. We demonstrate that the system exhibits replica symmetry breaking in the path ensemble with the initial position of the particle being fixed. The key step of the proof is that the path ensemble with a modified boundary condition can be exactly mapped onto the canonical ensemble of directed polymers.
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