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Constraint-induced mean curvature dependence of Cartesian momentum operators

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arxiv 0910.0769 v1 pith:SLXQ37ZM submitted 2009-10-05 math-ph math.MPquant-ph

Constraint-induced mean curvature dependence of Cartesian momentum operators

classification math-ph math.MPquant-ph
keywords momentumcartesiancurvaturemathbfmeanoperatoroperatorsquantum
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The Hermitian Cartesian quantum momentum operator $\mathbf{p}$ for an embedded surface $M$ in $R^{3}$ is proved to be a constant factor $-i\hbar $ times the mean curvature vector field $H\mathbf{n}$ added to the usual differential term. With use of this form of momentum operators, the operator-ordering ambiguity exists in the construction of the correct kinetic energy operator and three different operator-orderings lead to the same result. PACS: 03.65.-w Quantum mechanics, 04.60.Ds Canonical quantization

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