dorsal/arxiv
View SchemaQuantum description of light pulse scattering on a single atom in waveguides
| Authors | Peter Domokos, Peter Horak, Helmut Ritsch |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0202005 |
| URL | https://arxiv.org/abs/quant-ph/0202005 |
| DOI | 10.1103/PhysRevA.65.033832 |
| Journal | Phys. Rev. A 65, 033832 (2002) |
Abstract
We present a time dependent quantum calculation of the scattering of a few-photon pulse on a single atom. The photon wave packet is assumed to propagate in a transversely strongly confined geometry, which ensures strong atom-light coupling and allows a quasi 1D treatment. The amplitude and phase of the transmitted, reflected and transversely scattered part of the wave packet strongly depend on the pulse length (bandwidth) and energy. For a transverse mode size of the order of $\lambda^2$, we find nonlinear behavior for a few photons already, or even for a single photon. In a second step we study the collision of two such wave packets at the atomic site and find striking differences between Fock state and coherent state wave packets of the same photon number.
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"abstract": "We present a time dependent quantum calculation of the scattering of a\nfew-photon pulse on a single atom. The photon wave packet is assumed to\npropagate in a transversely strongly confined geometry, which ensures strong\natom-light coupling and allows a quasi 1D treatment. The amplitude and phase of\nthe transmitted, reflected and transversely scattered part of the wave packet\nstrongly depend on the pulse length (bandwidth) and energy. For a transverse\nmode size of the order of $\\lambda^2$, we find nonlinear behavior for a few\nphotons already, or even for a single photon. In a second step we study the\ncollision of two such wave packets at the atomic site and find striking\ndifferences between Fock state and coherent state wave packets of the same\nphoton number.",
"arxiv_id": "quant-ph/0202005",
"authors": [
"Peter Domokos",
"Peter Horak",
"Helmut Ritsch"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.65.033832",
"journal_ref": "Phys. Rev. A 65, 033832 (2002)",
"title": "Quantum description of light pulse scattering on a single atom in waveguides",
"url": "https://arxiv.org/abs/quant-ph/0202005"
},
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