Information propagation for interacting-particle systems
نویسندگان
چکیده
منابع مشابه
Information propagation for interacting particle systems
We show that excitations of interacting quantum particles in lattice models – and thus information in these systems – always propagate with a finite speed of sound. Our argument is simple yet general and shows that by focusing on the physically relevant observables one can typically expect a bounded speed of information propagation. It applies equally to quantum spins, bosons such as in the Bos...
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ژورنال
عنوان ژورنال: Physical Review A
سال: 2011
ISSN: 1050-2947,1094-1622
DOI: 10.1103/physreva.84.032309