The most successful theory in all of science--and the basis of one third of our economy--says the strangest things about the world and about us. Can you believe that physical reality is created by our observation of it? Physicists were forced to this conclusion, the quantum enigma, by what they observed in their laboratories. Trying to understand the atom, physicists built quantum mechanics and found, to their embarrassment, that their theory intimately connects consciousness with the physical world. Quantum Enigma explores (...) what that implies and why some founders of the theory became the foremost objectors to it. Schrodinger showed that it "absurdly" allowed a cat to be in a "superposition" simultaneously dead and alive. Einstein derided the theory's "spooky interactions." With Bell's Theorem, we now know Schrodinger's superpositions and Einstein's spooky interactions indeed exist. Authors Bruce Rosenblum and Fred Kuttner explain all of this in non-technical terms with help from some fanciful stories and bits about the theory's developers. They present the quantum mystery honestly, with an emphasis on what is and what is not speculation. Physics' encounter with consciousness is its skeleton in the closet. Because the authors open the closet and examine the skeleton, theirs is a controversial book. Quantum Enigma's description of the experimental quantum facts, and the quantum theory explaining them, is undisputed. Interpreting what it all means, however, is controversial. Every interpretation of quantum physics encounters consciousness. Rosenblum and Kuttner therefore turn to exploring consciousness itself--and encounter quantum physics. Free will and anthropic principles become crucial issues, and the connection of consciousness with the cosmos suggested by some leading quantum cosmologists is mind-blowing. Readers are brought to a boundary where the particular expertise of physicists is no longer a sure guide. They will find, instead, the facts and hints provided by quantum mechanics and the ability to speculate for themselves. (shrink)

Consciousness and the measurement problem of quantum mechanics have a logical connection and an historical involvement. Moreover, current issues in the two arenas have striking similarities. Whether or not consciousness warrants quantum mechanical consideration, analogies between quantum measurement and consciousness are tantalizing and suggestive. After a review of how the issue of consciousness arises in quantum mechanics , and after a brief discussion of the implications of the measurement problem for reductionism, we develop a series of analogies between consciousness and (...) quantum mechanics. We conclude that any substantial advance in one arena would at the least offer hints for routes to take in the other. (shrink)

We describe what seems to be the only objective evidence for the existence of consciousness as an entity beyond its neural correlates. We display this evidence, the nature of observation in quantum mechanics, with a theory-neutral version of the archetypal demonstration of quantum phenomena, the two-slit experiment. This undisputed empirical result provides objective evidence for consciousness, the straightforward alternative being the assumption of not only a completely deterministic world, but a conspiratorial one as well. The objection to this evidence for (...) consciousness, that a not-conscious robot could be the observer, is examined. (shrink)

A goal of most interpretations of quantum mechanics is to avoid the apparent intrusion of the observer into the measurement process. Such intrusion is usually seen to arise because observation somehow selects a single actuality from among the many possibilities represented by the wavefunction. The issue is typically treated in terms of the mathematical formulation of the quantum theory. We attempt to address a different manifestation of the quantum measurement problem in a theory-neutral manner. With a version of the two-slit (...) experiment, we demonstrate that an enigma arises directly from the results of experiments. Assuming that no observable physical phenomena exist beyond those predicted by the theory, we argue that no interpretation of the quantum theory can avoid a measurement problem involving the observer. (shrink)

Nauenberg’s extended critique of Quantum Enigma rests on fundamental misunderstandings.