## Measurement in Quantum Mechanics Faq## Schrödinger's catIn 1935 Schrödinger published an essay describing the conceptual problems in QM1. A brief paragraph in this essay described the cat paradox. One can even set up quite ridiculous cases. A cat is penned
up in a steel chamber, along with the following diabolical device
(which must be secured against direct interference by the cat):
in a Geiger counter there is a tiny bit of radioactive substance,
so small that It is typical of these cases that an indeterminacy originally
restricted to the atomic domain becomes transformed into macroscopic
indeterminacy, which can then be We know that superposition of possible outcomes must exist simultaneously at a microscopic level because we can observe interference effects from these. We know (at least most of us know) that the cat in the box is dead, alive or dying and not in a smeared out state between the alternatives. When and how does the model of many microscopic possibilities resolve itself into a particular macroscopic state? When and how does the fog bank of microscopic possibilities transform itself to the blurred picture we have of a definite macroscopic state. That is the measurement problem and Schrödinger's cat is a simple and elegant explanations of that problem. References:E. Schrödinger, ``Die gegenwartige Situation in der Quantenmechanik,'' Naturwissenschaftern.
23 : pp. 807-812; 823-823, 844-849. (1935). English translation:
John D. Trimmer, Proceedings of the American Philosophical
Society, 124, 323-38 (1980), Reprinted in Quantum Theory
and Measurement, p 152 (1983).
measurement FAQ |

All the material listed and linked at this World Wide Web domain are strictly private property and copyrighted.
© Copyright -∞**-**∞
Levent Ozturk. All rights reserved. Reproduction or use of any material, documents and related graphics and any other material
from this World Wide Web server is strictly prohibited.
Site Map