A cavity-microscope for micrometer-scale control of atom-photon interactions
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arXiv
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| Autores principales: | , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| _version_ | 1866910751027888128 |
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| author | Orsi, Francesca Sauerwein, Nick Bhatt, Rohit Prasad Faltinath, Jonas Fedotova, Ekaterina Reiter, Nicola Cantat-Moltrecht, Tigrane Brantut, Jean-Philippe |
| author_facet | Orsi, Francesca Sauerwein, Nick Bhatt, Rohit Prasad Faltinath, Jonas Fedotova, Ekaterina Reiter, Nicola Cantat-Moltrecht, Tigrane Brantut, Jean-Philippe |
| contents | Cavity quantum electrodynamics offers the possibility to observe and control the motion of few or individual atoms, enabling the realization of various quantum technological tasks such as quantum-enhanced metrology or quantum simulation of strongly-correlated matter. A core limitation of these experiments lies in the mode structure of the cavity field, which is hard-coded in the shape and geometry of the mirrors. As a result, most applications of cavity QED trade spatial resolution for enhanced sensitivity. Here, we propose and demonstrate a cavity-microscope device capable of controlling in space and time the coupling between atoms and light in a single-mode high-finesse cavity, reaching a spatial resolution an order-of-magnitude lower than the cavity mode waist. This is achieved through local Floquet engineering of the atomic level structure, imprinting a corresponding atom-field coupling. We illustrate this capability by engineering micrometer-scale coupling, using cavity-assisted atomic measurements and optimization. Our system forms an optical device with a single optical axis and has the same footprint and complexity as a standard Fabry-Perot cavity or confocal lens pair, and can be used for any atomic species. This technique opens a wide range of perspectives from ultra-fast, cavity-enhanced mid-circuit readout to the quantum simulation of fully connected models of quantum matter such as the Sachdev-Ye-Kitaev model. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2405_03550 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | A cavity-microscope for micrometer-scale control of atom-photon interactions Orsi, Francesca Sauerwein, Nick Bhatt, Rohit Prasad Faltinath, Jonas Fedotova, Ekaterina Reiter, Nicola Cantat-Moltrecht, Tigrane Brantut, Jean-Philippe Quantum Gases Atomic Physics Cavity quantum electrodynamics offers the possibility to observe and control the motion of few or individual atoms, enabling the realization of various quantum technological tasks such as quantum-enhanced metrology or quantum simulation of strongly-correlated matter. A core limitation of these experiments lies in the mode structure of the cavity field, which is hard-coded in the shape and geometry of the mirrors. As a result, most applications of cavity QED trade spatial resolution for enhanced sensitivity. Here, we propose and demonstrate a cavity-microscope device capable of controlling in space and time the coupling between atoms and light in a single-mode high-finesse cavity, reaching a spatial resolution an order-of-magnitude lower than the cavity mode waist. This is achieved through local Floquet engineering of the atomic level structure, imprinting a corresponding atom-field coupling. We illustrate this capability by engineering micrometer-scale coupling, using cavity-assisted atomic measurements and optimization. Our system forms an optical device with a single optical axis and has the same footprint and complexity as a standard Fabry-Perot cavity or confocal lens pair, and can be used for any atomic species. This technique opens a wide range of perspectives from ultra-fast, cavity-enhanced mid-circuit readout to the quantum simulation of fully connected models of quantum matter such as the Sachdev-Ye-Kitaev model. |
| title | A cavity-microscope for micrometer-scale control of atom-photon interactions |
| topic | Quantum Gases Atomic Physics |
| url | https://arxiv.org/abs/2405.03550 |