On-demand transposition across light-matter interaction regimes in
bosonic cQED
- URL: http://arxiv.org/abs/2312.14665v2
- Date: Tue, 26 Dec 2023 05:33:45 GMT
- Title: On-demand transposition across light-matter interaction regimes in
bosonic cQED
- Authors: Fernando Valadares, Ni-Ni Huang, Kyle Chu, Aleksandr Dorogov, Weipin
Chua, Lingda Kong, Pengtao Song, Yvonne Y. Gao
- Abstract summary: Bosonic cQED employs the light field of high-Q superconducting cavities coupled to non-linear circuit elements.
We present the first experiment to achieve fast switching of the interaction regime without deteriorating the cavity coherence.
Our work opens up a new paradigm to probe the full range of light-matter interaction dynamics within a single platform.
- Score: 69.65384453064829
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: The diverse applications of light-matter interactions in science and
technology stem from the qualitatively distinct ways these interactions
manifest, prompting the development of physical platforms that can interchange
between regimes on demand. Bosonic cQED employs the light field of high-Q
superconducting cavities coupled to non-linear circuit elements, harnessing the
rich dynamics of their interaction for quantum information processing. However,
implementing fast switching of the interaction regime without deteriorating the
cavity coherence is a significant challenge. We present the first experiment to
achieve this feat, combining nanosecond-scale frequency tunability of a
transmon coupled to a cavity with lifetime of hundreds of microseconds. Our
implementation affords a range of new capabilities for quantum information
processing; from fast creation of cavity Fock states using resonant interaction
and interchanging tomography techniques at qualitatively distinct interaction
regimes on the fly, to the suppression of unwanted cavity-transmon dynamics
during idle evolution. By bringing flux tunability into the bosonic cQED
toolkit, our work opens up a new paradigm to probe the full range of
light-matter interaction dynamics within a single platform and provides
valuable new pathways towards robust and versatile quantum information
processing.
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