On-chip microwave coherent source with in-situ control of the photon number distribution
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arXiv
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| Main Authors: | , , , , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866915424082329600 |
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| author | Mastrovito, Pasquale Ahmad, Halima Giovanna Porzio, Alberto Esposito, Martina Massarotti, Davide Tafuri, Francesco |
| author_facet | Mastrovito, Pasquale Ahmad, Halima Giovanna Porzio, Alberto Esposito, Martina Massarotti, Davide Tafuri, Francesco |
| contents | Coherent photon sources are key elements in different applications, ranging from quantum sensing to quantum computing. The possibility of designing and engineering superconducting circuits behaving like artificial atoms supports the realization of quantum optics protocols, including microwave photons generation. Here we propose and theoretically investigate a design that allows a tunable photon injection directly on-chip. Our approach enables control of the emission via an external knob while preserving, in principle, the stability and linewidth characteristics. This is achieved by replacing the conventional capacitive link between the source and the reservoir with a tunable coupler, with the advantage of avoiding direct dynamical manipulation of the photon source dynamics, providing pulsed control of the emission. We validate the dynamical control of the generated state under the effect of an external flux threading the tunable coupler and discuss the possibility of employing this scheme also in the context of multiple bosonic reservoirs. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2406_10597 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | On-chip microwave coherent source with in-situ control of the photon number distribution Mastrovito, Pasquale Ahmad, Halima Giovanna Porzio, Alberto Esposito, Martina Massarotti, Davide Tafuri, Francesco Quantum Physics Other Condensed Matter Superconductivity Applied Physics Coherent photon sources are key elements in different applications, ranging from quantum sensing to quantum computing. The possibility of designing and engineering superconducting circuits behaving like artificial atoms supports the realization of quantum optics protocols, including microwave photons generation. Here we propose and theoretically investigate a design that allows a tunable photon injection directly on-chip. Our approach enables control of the emission via an external knob while preserving, in principle, the stability and linewidth characteristics. This is achieved by replacing the conventional capacitive link between the source and the reservoir with a tunable coupler, with the advantage of avoiding direct dynamical manipulation of the photon source dynamics, providing pulsed control of the emission. We validate the dynamical control of the generated state under the effect of an external flux threading the tunable coupler and discuss the possibility of employing this scheme also in the context of multiple bosonic reservoirs. |
| title | On-chip microwave coherent source with in-situ control of the photon number distribution |
| topic | Quantum Physics Other Condensed Matter Superconductivity Applied Physics |
| url | https://arxiv.org/abs/2406.10597 |