Solving the scattering of N photons on a two-level atom without computation
We propose a novel approach for solving the scattering of light onto a two-level atom coupled to a one-dimensional waveguide. First we express the physical quantity of interest in terms of Feynman diagrams and treat the atom as a non-saturable linear beamsplitter. By using the atomic response to our...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2016-01-01
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| Series: | New Journal of Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1367-2630/18/9/093035 |
| _version_ | 1797750949023842304 |
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| author | Alexandre Roulet Valerio Scarani |
| author_facet | Alexandre Roulet Valerio Scarani |
| author_sort | Alexandre Roulet |
| collection | DOAJ |
| description | We propose a novel approach for solving the scattering of light onto a two-level atom coupled to a one-dimensional waveguide. First we express the physical quantity of interest in terms of Feynman diagrams and treat the atom as a non-saturable linear beamsplitter. By using the atomic response to our advantage, a relevant substitution is then made that captures the nonlinearity of the atom, and the final result is obtained in terms of simple integrals over the initial incoming wavepackets. The procedure is not limited to post-scattering quantities and allows for instance to derive the atomic excitation during the scattering event. |
| first_indexed | 2024-03-12T16:40:14Z |
| format | Article |
| id | doaj.art-236ef531c63a4b909fe5f2d55948c6f7 |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:40:14Z |
| publishDate | 2016-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-236ef531c63a4b909fe5f2d55948c6f72023-08-08T14:31:04ZengIOP PublishingNew Journal of Physics1367-26302016-01-0118909303510.1088/1367-2630/18/9/093035Solving the scattering of N photons on a two-level atom without computationAlexandre Roulet0Valerio Scarani1Centre for Quantum Technologies, National University of Singapore , 3 Science Drive 2, Singapore 117543, SingaporeCentre for Quantum Technologies, National University of Singapore , 3 Science Drive 2, Singapore 117543, Singapore; Department of Physics, National University of Singapore , 2 Science Drive 3, Singapore 117542, SingaporeWe propose a novel approach for solving the scattering of light onto a two-level atom coupled to a one-dimensional waveguide. First we express the physical quantity of interest in terms of Feynman diagrams and treat the atom as a non-saturable linear beamsplitter. By using the atomic response to our advantage, a relevant substitution is then made that captures the nonlinearity of the atom, and the final result is obtained in terms of simple integrals over the initial incoming wavepackets. The procedure is not limited to post-scattering quantities and allows for instance to derive the atomic excitation during the scattering event.https://doi.org/10.1088/1367-2630/18/9/093035waveguide QEDscattering of lightatom-induced correlations |
| spellingShingle | Alexandre Roulet Valerio Scarani Solving the scattering of N photons on a two-level atom without computation New Journal of Physics waveguide QED scattering of light atom-induced correlations |
| title | Solving the scattering of N photons on a two-level atom without computation |
| title_full | Solving the scattering of N photons on a two-level atom without computation |
| title_fullStr | Solving the scattering of N photons on a two-level atom without computation |
| title_full_unstemmed | Solving the scattering of N photons on a two-level atom without computation |
| title_short | Solving the scattering of N photons on a two-level atom without computation |
| title_sort | solving the scattering of n photons on a two level atom without computation |
| topic | waveguide QED scattering of light atom-induced correlations |
| url | https://doi.org/10.1088/1367-2630/18/9/093035 |
| work_keys_str_mv | AT alexandreroulet solvingthescatteringofnphotonsonatwolevelatomwithoutcomputation AT valerioscarani solvingthescatteringofnphotonsonatwolevelatomwithoutcomputation |