dorsal/arxiv
View SchemaTime of arrival in Classical and Quantum Mechanics
| Authors | Juan Leon |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0008025 |
| URL | https://arxiv.org/abs/quant-ph/0008025 |
Abstract
The time of arrival at an arbitrary position in configuration space can be given as a function of the phase space variables for the Liouville integrable systems of classical mechanics, but only for them. We review the Jacobi-Lie transformation that explicitly implements this function of positions and momenta. We then discuss the recently developed quantum formalism for the time of arrival. We first analyze the case of free particles in one and three space dimensions. Then, we apply the quantum version of the Jacobi-Lie transformation to work out the time of arrival operator in the presence of interactions. We discuss the formalism and its interpretation. We finish by disclosing the presence (absence) of "instantaneous" tunneling for thin (thick) barriers.
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"abstract": "The time of arrival at an arbitrary position in configuration space can be\ngiven as a function of the phase space variables for the Liouville integrable\nsystems of classical mechanics, but only for them. We review the Jacobi-Lie\ntransformation that explicitly implements this function of positions and\nmomenta. We then discuss the recently developed quantum formalism for the time\nof arrival. We first analyze the case of free particles in one and three space\ndimensions. Then, we apply the quantum version of the Jacobi-Lie transformation\nto work out the time of arrival operator in the presence of interactions. We\ndiscuss the formalism and its interpretation. We finish by disclosing the\npresence (absence) of \"instantaneous\" tunneling for thin (thick) barriers.",
"arxiv_id": "quant-ph/0008025",
"authors": [
"Juan Leon"
],
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"quant-ph"
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"title": "Time of arrival in Classical and Quantum Mechanics",
"url": "https://arxiv.org/abs/quant-ph/0008025"
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