Bloch Oscillations of Hybrid Light-Matter Particles in a Waveguide Array
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arXiv
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| Autori principali: | , , , , , , , , |
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| Natura: | Preprint |
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2020
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| _version_ | 1866911780680237056 |
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| author | Beierlein, Johannes Egorov, Oleg. A. Harder, Tristan H. Gagel, Philipp Emmerling, Monika Schneider, Christian Höfling, Sven Peschel, Ulf Klembt, Sebastian |
| author_facet | Beierlein, Johannes Egorov, Oleg. A. Harder, Tristan H. Gagel, Philipp Emmerling, Monika Schneider, Christian Höfling, Sven Peschel, Ulf Klembt, Sebastian |
| contents | Bloch oscillations are a phenomenon well known from quantum mechanics where electrons in a lattice experience an oscillatory motion in the presence of an electric field gradient. Here, we report on Bloch oscillations of hybrid light-matter particles, called exciton-polaritons, being confined in an array of coupled microcavity waveguides. To this end, we carefully design the waveguides, widths and their mutual couplings such that a constant energy gradient is induced perpendicular to the direction of motion of the propagating exciton-polaritons. This technique allows us to directly observe and study Bloch oscillations in real- and momentum-space. Furthermore, we support our experimental findings by numerical simulations based on a modified Gross-Pitaevskii approach. Our work provides an important transfer of basic concepts of quantum mechanics to integrated solid state devices, using quantum fluids of light. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2012_14281 |
| institution | arXiv |
| publishDate | 2020 |
| record_format | arxiv |
| spellingShingle | Bloch Oscillations of Hybrid Light-Matter Particles in a Waveguide Array Beierlein, Johannes Egorov, Oleg. A. Harder, Tristan H. Gagel, Philipp Emmerling, Monika Schneider, Christian Höfling, Sven Peschel, Ulf Klembt, Sebastian Mesoscale and Nanoscale Physics Bloch oscillations are a phenomenon well known from quantum mechanics where electrons in a lattice experience an oscillatory motion in the presence of an electric field gradient. Here, we report on Bloch oscillations of hybrid light-matter particles, called exciton-polaritons, being confined in an array of coupled microcavity waveguides. To this end, we carefully design the waveguides, widths and their mutual couplings such that a constant energy gradient is induced perpendicular to the direction of motion of the propagating exciton-polaritons. This technique allows us to directly observe and study Bloch oscillations in real- and momentum-space. Furthermore, we support our experimental findings by numerical simulations based on a modified Gross-Pitaevskii approach. Our work provides an important transfer of basic concepts of quantum mechanics to integrated solid state devices, using quantum fluids of light. |
| title | Bloch Oscillations of Hybrid Light-Matter Particles in a Waveguide Array |
| topic | Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2012.14281 |