Stationary Phase and the Theory of Measurement : 1/N Expansion(General and Mathamatical Physics)
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概要
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The measuring process is studied, where a macroscopic number N of particles in the detector interact with the object. When N→∞, the fluctuation of the object between different eigenstates of the operator O to be measured is suppressed, frozen to one and the same state while the detector is on. During this period, the stationary phase accompanying the macrovariable is established to have a one to one correspondence with the eigenvalue of O. A model is studied which produces the ideal result when N→∞ and the correction terms are calculated in powers of 1/N. It is identical to the expansion including the fluctuation of the object successively.
- 理論物理学刊行会の論文
- 2009-12-25
著者
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FUKUDA Reijiro
Department of Physics, Faculty of Science and Technology, Keio University
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Fukuda Reijiro
Department Of Physics Faculty Of Science And Technology Keio University
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