English

Quantum origins of objectivity

Quantum Physics 2015-04-08 v2

Abstract

In spite of all of its successes, quantum mechanics leaves us with a central problem: How does Nature create a "foot-bridge" from fragile quanta to the objective world of everyday experience? Here we identify within quantum mechanics a fundamental process leading to the perceived objectivity and called state information broadcasting. This is the trick that Nature uses instead of a simple cloning. We uncover it basing on minimal assumptions, without referring to any dynamical details or a concrete model. More specifically, we show how a crucial for quantum mechanics notion of non-disturbance due to Bohr and a natural definition of objectivity lead to a canonical structure of a quantum system-environment state, reflecting objective information records about the system stored in the environment.

Keywords

Cite

@article{arxiv.1312.6588,
  title  = {Quantum origins of objectivity},
  author = {R. Horodecki and J. K. Korbicz and P. Horodecki},
  journal= {arXiv preprint arXiv:1312.6588},
  year   = {2015}
}

Comments

An extended and refined version of parts of arXiv:1305.3247; published version

R2 v1 2026-06-22T02:34:06.834Z