dorsal/arxiv
View SchemaSpontaneous emission of light from atoms: the model
| Authors | P. Marecki, N. Szpak |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0407186 |
| URL | https://arxiv.org/abs/quant-ph/0407186 |
| DOI | 10.1002/andp.200410143 |
| Journal | Ann. Phys. (Leipzig) 14, 428 (2005) |
Abstract
We investigate (non-relativistic) atomic systems interacting with quantum electromagnetic field (QEF). The resulting model describes spontaneous emission of light from a two-level atom surrounded by various initial states of the QEF. We assume, that the quantum field interacts with the atom via the standard, minimal-coupling Hamiltonian, with the $A^2$ term neglected. We also assume, that there will appear at most single excitations (photons). By conducting the analysis on a general level we allow for an arbitrary initial state of the QEF (which can be for instance: the vacuum, the ground state in a cavity, or the squeezed state). We derive a Volterra-type equation which governs the time evolution of the amplitude of the excited state. The two-point function of the initial state of the QEF, integrated with a combination of atomic wavefunctions, forms the kernel of this equation.
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"abstract": "We investigate (non-relativistic) atomic systems interacting with quantum\nelectromagnetic field (QEF). The resulting model describes spontaneous emission\nof light from a two-level atom surrounded by various initial states of the QEF.\nWe assume, that the quantum field interacts with the atom via the standard,\nminimal-coupling Hamiltonian, with the $A^2$ term neglected. We also assume,\nthat there will appear at most single excitations (photons). By conducting the\nanalysis on a general level we allow for an arbitrary initial state of the QEF\n(which can be for instance: the vacuum, the ground state in a cavity, or the\nsqueezed state). We derive a Volterra-type equation which governs the time\nevolution of the amplitude of the excited state. The two-point function of the\ninitial state of the QEF, integrated with a combination of atomic\nwavefunctions, forms the kernel of this equation.",
"arxiv_id": "quant-ph/0407186",
"authors": [
"P. Marecki",
"N. Szpak"
],
"categories": [
"quant-ph"
],
"doi": "10.1002/andp.200410143",
"journal_ref": "Ann. Phys. (Leipzig) 14, 428 (2005)",
"title": "Spontaneous emission of light from atoms: the model",
"url": "https://arxiv.org/abs/quant-ph/0407186"
},
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