dorsal/arxiv
View SchemaClassical and Fluctuating Paths in Spaces with Curvature and Torsion
| Authors | H. Kleinert |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/9606001 |
| URL | https://arxiv.org/abs/quant-ph/9606001 |
Abstract
This conference talk elaborates on a recently discovered mapping procedure by which classical orbits and path integrals for the motion of a point particle in flat space can be transformed correctly into those in curved space. This procedure evolved from well established methods in the theory of plastic deformations where crystals with defects are described mathematically by applying nonholonomic coordinate transformations to ideal crystals. In the context of time-sliced path integrals, there seems to exists a quantum equivalence principle which determines the measures of fluctating orbits in spaces with curvature and torsion. The nonholonomic transformations produce a nontrivial Jacobian in the path measure which in a curved space produces an additional term proportional to the curvature scalar canceling a similar term found earlier by DeWitt from a naive formulation of Feynman's time-sliced path integral. This cancelation is important in correctly describing semiclassically and quantum mechanically various systems such as the hydrogen atom, a particle on the surface of a sphere, and a spinning top. It is also indispensible for the process of bosonization, by which Fermi particles are redescribed in terms of Bose fields.
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"abstract": "This conference talk elaborates on a recently discovered mapping procedure by\nwhich classical orbits and path integrals for the motion of a point particle in\nflat space can be transformed correctly into those in curved space. This\nprocedure evolved from well established methods in the theory of plastic\ndeformations where crystals with defects are described mathematically by\napplying nonholonomic coordinate transformations to ideal crystals. In the\ncontext of time-sliced path integrals, there seems to exists a quantum\nequivalence principle which determines the measures of fluctating orbits in\nspaces with curvature and torsion. The nonholonomic transformations produce a\nnontrivial Jacobian in the path measure which in a curved space produces\n an additional term proportional to the curvature scalar canceling a similar\nterm found earlier by DeWitt from a naive formulation of Feynman\u0027s time-sliced\npath integral. This cancelation is important in correctly describing\nsemiclassically and quantum mechanically various systems such as the hydrogen\natom, a particle on the surface of a sphere, and a spinning top. It is also\nindispensible for the process of bosonization, by which Fermi particles are\nredescribed in terms of Bose fields.",
"arxiv_id": "quant-ph/9606001",
"authors": [
"H. Kleinert"
],
"categories": [
"quant-ph"
],
"title": "Classical and Fluctuating Paths in Spaces with Curvature and Torsion",
"url": "https://arxiv.org/abs/quant-ph/9606001"
},
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