When the motion of a particle is constrained, excess terms exist using hermitian form of Cartesian momentum pi (i=1, 2,3) in usual kinetic energy (1/2/μ)∑ pi^2 , and the correct kinetic energy turns out to be (...When the motion of a particle is constrained, excess terms exist using hermitian form of Cartesian momentum pi (i=1, 2,3) in usual kinetic energy (1/2/μ)∑ pi^2 , and the correct kinetic energy turns out to be (1/2μ) ∑1/ fipi f ipi, where fi are dummy factors in classical mechanics and nontrivial in quantum mechanics. In this paper the explicit form of the dummy functions fi is given for a charged rigid planar rotator in the uniform magnetic field with different gauge chosen. Under different gauges, we have different sets of dummy factors. It means that these factors do not have direct observable effect.展开更多
基金The project supported by the Program for New Century Excellent Talents in Universities, Ministry of Education, and the Key Teaching Reform Program of Hunan Province
文摘When the motion of a particle is constrained, excess terms exist using hermitian form of Cartesian momentum pi (i=1, 2,3) in usual kinetic energy (1/2/μ)∑ pi^2 , and the correct kinetic energy turns out to be (1/2μ) ∑1/ fipi f ipi, where fi are dummy factors in classical mechanics and nontrivial in quantum mechanics. In this paper the explicit form of the dummy functions fi is given for a charged rigid planar rotator in the uniform magnetic field with different gauge chosen. Under different gauges, we have different sets of dummy factors. It means that these factors do not have direct observable effect.