Abstract
Within the general framework of local quantum field theory a physically motivated condition on the energy-level density of well-localized states is proposed and discussed. It is shown that any model satisfying this condition obeys a strong form of the principle of causal (statistical) independence, which manifests itself in a specific algebraic structure of the local algebras (“split property”). It is also shown that the proposed condition holds in a free field theory.
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Communicated by K. Osterwalder
Dedicated to H. J. Borchers on the occasion of his 60th birthday
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Buchholz, D., Wichmann, E.H. Causal independence and the energy-level density of states in local quantum field theory. Commun.Math. Phys. 106, 321–344 (1986). https://doi.org/10.1007/BF01454978
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DOI: https://doi.org/10.1007/BF01454978