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Title: Redundancy of einselected information in quantum Darwinism: The irrelevance of irrelevant environment bits [Separating the wheat from the chaff: Redundancy and relevant information in quantum Darwinism]

Here, the objective, classical world emerges from the underlying quantum substrate via the proliferation of redundant copies of selected information into the environment, which acts as a communication channel, transmitting that information to observers. These copies are independently accessible, allowing many observers to reach consensus about the state of a quantum system via its imprints in the environment. Quantum Darwinism recognizes that the redundancy of information is thus central to the emergence of objective reality in the quantum world. However, in addition to the “quantum system of interest,” there are many other systems “of no interest” in the Universe that can imprint information on the common environment. There is therefore a danger that the information of interest will be diluted with irrelevant bits, suppressing the redundancy responsible for objectivity. We show that mixing of the relevant (the “wheat”) and irrelevant (the “chaff”) bits of information makes little quantitative difference to the redundancy of the information of interest. Thus, we demonstrate that it does not matter whether one separates the wheat (relevant information) from the (irrelevant) chaff: The large redundancy of the relevant information survives dilution, providing evidence of the objective, effectively classical world.
 [1] ;  [2]
  1. Oregon State Univ., Corvallis, OR (United States)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Report Number(s):
Journal ID: ISSN 2469-9926; PLRAAN
Grant/Contract Number:
Accepted Manuscript
Journal Name:
Physical Review A
Additional Journal Information:
Journal Volume: 95; Journal Issue: 3; Journal ID: ISSN 2469-9926
American Physical Society (APS)
Research Org:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org:
USDOE Laboratory Directed Research and Development (LDRD) Program
Country of Publication:
United States
74 ATOMIC AND MOLECULAR PHYSICS; Atomic and Nuclear Physics
OSTI Identifier:
Alternate Identifier(s):
OSTI ID: 1346267