Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2024
|
| Subjects: | |
| Online Access: | https://arxiv.org/abs/2410.15377 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866912078767325184 |
|---|---|
| author | Hu, Jingjing Li, Dengfeng Qie, Yufan Yin, Zelong Kockum, Anton Frisk Nori, Franco An, Shuoming |
| author_facet | Hu, Jingjing Li, Dengfeng Qie, Yufan Yin, Zelong Kockum, Anton Frisk Nori, Franco An, Shuoming |
| contents | In quantum computing, precise control of system-environment coupling is essential for high-fidelity gates, measurements, and networking. We present an architecture that employs an artificial giant atom from waveguide quantum electrodynamics to tailor the interaction between a superconducting qubit and its environment. This frequency-tunable giant atom exhibits both frequency and power selectivity for photons: when resonant with the qubit, it reflects single photons emitted from the qubit while remaining transparent to strong microwave signals for readout and control. This approach surpasses the Purcell limit and significantly extends the qubit's lifetime by ten times while maintaining the readout speed, thereby improving both gate operations and readout. Our architecture holds promise for bridging circuit and waveguide quantum electrodynamics systems in quantum technology applications. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_15377 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Engineering the Environment of a Superconducting Qubit with an Artificial Giant Atom Hu, Jingjing Li, Dengfeng Qie, Yufan Yin, Zelong Kockum, Anton Frisk Nori, Franco An, Shuoming Quantum Physics In quantum computing, precise control of system-environment coupling is essential for high-fidelity gates, measurements, and networking. We present an architecture that employs an artificial giant atom from waveguide quantum electrodynamics to tailor the interaction between a superconducting qubit and its environment. This frequency-tunable giant atom exhibits both frequency and power selectivity for photons: when resonant with the qubit, it reflects single photons emitted from the qubit while remaining transparent to strong microwave signals for readout and control. This approach surpasses the Purcell limit and significantly extends the qubit's lifetime by ten times while maintaining the readout speed, thereby improving both gate operations and readout. Our architecture holds promise for bridging circuit and waveguide quantum electrodynamics systems in quantum technology applications. |
| title | Engineering the Environment of a Superconducting Qubit with an Artificial Giant Atom |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2410.15377 |