In this work we focus on numerical methods used for studying one-dimensional many-body systems as matrix product states. We begin by considering the recently popular microscopic model, the reversible cellular automaton Rule 54, for which many paradigms of statistical mechanics may be solved exactly. Preliminary results show that rule 54 may be deformed by addition of new rules in a stochastic manner
whilst preserving integrability of the model. We study the non-equilibrium steady states of rule 54 and primarily its stochastic deformations in the matrix product formulation by use of numerical methods such as time evolving block decimation.
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