| Alternative Derivation of the Propagator in Polar Coordinates by Feynman‘s Physical Interpretation of the Characteristic Function |
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| 作者单位： | QIAN Shang-Wu,CHAN King-Man(Physics Department, Peking University, Beijing 100871, China);GU Zhi-Yu(Physics Department, Capital Normal University, Beijing 100037, China) |
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| 摘 要： | This article revisits Feynman‘s characteristic function, and points out the insight and usefulness of hisphysical interpretation. As an example, the tedious and rather long derivation of the propagator in polar coordinatescan be easily and clearly obtained by merely using Feynman‘s physical intepretation of the characteristic function andsome well-known results of central force problem.
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| 关 键 词： | Feynman‘s characteristic function propagator in polar coordinates |
Alternative Derivation of the Propagator in Polar Coordinates by Feynman''s Physical Interpretation of the Characteristic Function |
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| QIAN Shang-Wu,CHAN King-Man,GU Zhi-Yu. Alternative Derivation of the Propagator in Polar Coordinates by Feynman''s Physical Interpretation of the Characteristic Function[J]. Communications in Theoretical Physics, 2002, 38(11) |
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| Authors: | QIAN Shang-Wu CHAN King-Man GU Zhi-Yu |
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| Affiliation: | Physics Department, Peking University, Beijing 100871, China Physics Department, Peking University, Beijing 100871, China Physics Department, Capital Normal University, Beijing 100037, China |
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| Abstract: | This article revisits Feynman's characteristic function, and points out the insight and usefulness of hisphysical interpretation. As an example, the tedious and rather long derivation of the propagator in polar coordinatescan be easily and clearly obtained by merely using Feynman's physical intepretation of the characteristic function andsome well-known results of central force problem. |
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| Keywords: | Feynman's characteristic function propagator in polar coordinates |
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