Controlling General Polynomial Networks
We consider networks of massive particles connected by non-linear springs. Some particles interact with heat baths at different temperatures, which are modeled as stochastic driving forces. The structure of the network is arbitrary, but the motion of each particle is 1D. For polynomial interactions, we give sufficient conditions for Hörmander’s “bracket condition” to hold, which implies the uniqueness of the steady state (if it exists), as well as the controllability of the associated system in control theory. These conditions are constructive; they are formulated in terms of inequivalence of the forces (modulo translations) and/or conditions on the topology of the connections. We illustrate our results with examples, including “conducting chains” of variable cross-section. This then extends the results for a simple chain obtained in Eckmann et al. in (Commun Math Phys 201:657–697, 1999).
KeywordsEquivalence Class Heat Bath Controllable Particle Vandermonde Determinant Commun Math Phys
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- 2.Eckmann, J.-P., Hairer, M., Rey-Bellet L.: Non-equilibrium steady states for networks of springs. In preparationGoogle Scholar
- 6.Hairer, M.: A probabilistic argument for the controllability of conservative systems. arxiv:math-ph/0506064
- 8.Hörmander, L.: The Analysis of Linear Partial Differential Operators I–IV. New York: Springer, 1985Google Scholar
- 9.Jurdjevic, V.: Geometric control theory. Cambridge; New York: Cambridge University Press, 1997Google Scholar
- 10.Rey-Bellet, L.: Ergodic properties of Markov processes. Open Quantum Syst. II 139 (2006)Google Scholar