DOI: 10.14704/nq.2013.11.1.645

The Role of the Observer in the Everett Interpretation

H. Dieter Zeh


The role attributed to the observer in various interpretations of quantum mechanics as well as in classical statistical mechanics is discussed, with particular attention being paid to the Everett interpretation. In this context, the important difference between “quasi-classical” (robust against decoherence) and “macroscopic” or “physically given” (redundantly documented in the environment) is pointed out.

NeuroQuantology | March 2013 | Volume 11 | Issue 1 | Suppl 1 | Page 97-105


quantum measurement; decoherence; information; representative ensembles

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Bacciagaluppi G, Crull E. Heisenberg (and Schrödinger, and Pauli) on hidden variables. Studies in Hist and Philos Mod Phys 2009; 40: 374-382.

Bell JS. Quantum Mechanics for Cosmologists. In Isham CJ, Penrose R, Sciama DW. Quantum Gravity 2. Oxford UP. Oxford U.K. 1981: 611-637.

Beller M. Quantum Dialogue. U. Chicago Press, 1999; Ch. 4.

Bennett CH. Demons, Engines, and the Second Law. Sci American 1987; 253: 88-96.

Byrne P. The Many Worlds of Hugh Everett III. Oxford UP. Oxford U.K. 2010. Ch. 27.

Jammer M. The Philosophy of Quantum Mechanics. Wiley, New York 1974. Page 482.

Joos E, Zeh HD, Kiefer C, Giulini D, Kupsch J, Stamatescu IO. Decoherence and the Appearance of a Classical World in Quantum Theory. Springer. Heidelberg Germany 2003. Chs. 1-4.

Kübler O, Zeh HD. Dynamics of Quantum Correlations. Ann Phys (N.Y.) 1973; 76: 405-418.

Menkii MB. Concept of consciousness in the context of quantum mechanics. Physics-Uspechi 2005; 48: 389-409.

Saunders S, Barrett J, Kent A, Wallace D. Many Worlds? Oxford UP. Oxford U.K. 2010; Chs. 1 and 6-9.

Tegmark M. Importance of decoherence in brain processes. Phys Rev 2000; E61: 4194-4206.

Tegmark M. How unitary cosmology generalizes thermodynamics and solves the inflationary entropy problem. Phys Rev 2012; D85: 123517.

Ulfbeck O, Bohr A. Genuine fortuitousness: Where did that click come from? Found Phys 2001; 31: 757-774.

Wigner EP. Remarks on the mind-body question. In Good LG. The Scientist Speculates. Heinemann. London U.K. 1962: 284-302.

Wigner EP. Private communication (1970).

Zeh HD. On the interpretation of measurement in quantum theory. Found Phys 1970; 1: 69-76.

Zeh HD. The problem of conscious observation in quantum mechanical description. Found Phys 2000; 13: 221-233.

Zeh HD. The Physical Basis of the Direction of Time. Springer. Heidelberg Germany, 2007.

Zeh HD. Quantum discreteness is an illusion. Found Phys 2010; 40: 1476-1493. Sect. 5.

Zurek WH. Pointer basis of quantum apparatus: into what mixture does the wave packet collapse? Phys Rev 1981; D24: 1516-1525.

Supporting Agencies

The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.

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