Extended Pegg-Barnett Phase Operator
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概要
- 論文の詳細を見る
Vorontsov and Rembovsky pointed out recently a problem that unphysical states appear after an approximate quantum measurement of the Pegg-Barnett phase [Phys.Lett.A 254(1999), 7;262(1999), 486]. To give a solution to this problem, we introduce a quantum phase in the extended number-state space and show that there is no Vorontsov-Rembovsky problem in the extended space. In the infinite-dimensional limit, the present extended formalism gives the same results in almost all cases as the Pegg-Barnett formalism. Also, it is shown that unphysical states can be suppressed by using the projection operator to the physical number space.
- 理論物理学刊行会の論文
- 2001-10-25
著者
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KAKAZU Kiyotaka
Department of Physics and Earth Sciences, University of the Ryukyus
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Kakazu Kiyotaka
Department Of Physics And Earth Sciences University Of The Ryukyu
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KAKAZU Kiyotaka
Department of Physics and Earth Sciences, University of the Ryukyu
-
KAKAZU Kiyotaka
Department of Physics, University of the Ryukyus
-
KAKAZU Kiyotaka
Department of Physics and Earth Sciences,University of the Ryukyus
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