Leveraging collective effects for thermometry in waveguide quantum electrodynamics
Fuente:
arXiv
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| Autori principali: | , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866913883834286080 |
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| author | Sharafiev, Aleksei Juan, Mathieu Cattaneo, Marco Kirchmair, Gerhard |
| author_facet | Sharafiev, Aleksei Juan, Mathieu Cattaneo, Marco Kirchmair, Gerhard |
| contents | We report a proof-of-principle experiment for a new method of temperature measurements in waveguide quantum electrodynamics (wQED) experiments, allowing one to differentiate between global and local baths. The method takes advantage of collective states of two transmon qubits located in the center of a waveguide. The Hilbert space of such a system forms two separate subspaces (bright and dark) which are coupled differently to external noise sources. Measuring transmission through the waveguide allows one to extract separately the temperatures of the baths responsible for global and local excitations in the system. Such a system would allow for building a new type of primary temperature sensor capable of distinguishing between local and global baths. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2407_05958 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Leveraging collective effects for thermometry in waveguide quantum electrodynamics Sharafiev, Aleksei Juan, Mathieu Cattaneo, Marco Kirchmair, Gerhard Quantum Physics Mesoscale and Nanoscale Physics We report a proof-of-principle experiment for a new method of temperature measurements in waveguide quantum electrodynamics (wQED) experiments, allowing one to differentiate between global and local baths. The method takes advantage of collective states of two transmon qubits located in the center of a waveguide. The Hilbert space of such a system forms two separate subspaces (bright and dark) which are coupled differently to external noise sources. Measuring transmission through the waveguide allows one to extract separately the temperatures of the baths responsible for global and local excitations in the system. Such a system would allow for building a new type of primary temperature sensor capable of distinguishing between local and global baths. |
| title | Leveraging collective effects for thermometry in waveguide quantum electrodynamics |
| topic | Quantum Physics Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2407.05958 |