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quant-ph1995★ 22 cited
The classical limit of quantum theory
R. F. Werner
For a quantum observable depending on a parameter we define the notion `` converges in the classical limit''. The limit is a function on phase space. Con…
cond-mat1995
Boundary conditions for quantum lattice systems
M. Fannes, R. F. Werner
For classical lattice systems, the Dobrushin-Lanford-Ruelle theory of boundary conditions states that the restriction of a global equilibrium state to a subsystem can be obtained a…
cond-mat1995★ 32 cited
Ergodicity of quantum cellular automata
S. Richter, R. F. Werner
We define a class of dynamical maps on the quasi-local algebra of a quantum spin system, which are quantum analogues of probabilistic cellular automata. We develop criteria for suc…