Efficient bosonic nonlinear phase gates

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F24%3A73623870" target="_blank" >RIV/61989592:15310/24:73623870 - isvavai.cz</a>
Result on the web
<a href="https://www.nature.com/articles/s41534-024-00816-x" target="_blank" >https://www.nature.com/articles/s41534-024-00816-x</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1038/s41534-024-00816-x" target="_blank" >10.1038/s41534-024-00816-x</a>

Result language
angličtina
Original language name
Efficient bosonic nonlinear phase gates
Original language description
Continuous-variable (CV) quantum information processing harnesses versatile experimental tools that leverage the power of infinite-dimensional oscillators controlled by a single qubit. Increasingly available elementary Rabi gates have been proposed as a resource for implementing universal CV gates, but the requirement of many weak, non-commuting gates is a bottleneck in scaling up such an approach. In this study, we propose a resource-efficient technique using Fourier expansion to implement arbitrary non-linear phase gates in a single oscillator. This method reduces the number of sequentially required gates exponentially. These gates represented by cubic, quartic, and other arbitrary nonlinear potentials have applications in CV quantum information processing with infinite-dimensional oscillators controlled by a single qubit. Our method outperforms previous approaches and enables the experimental realization of a wide range of applications, including the development of bosonic quantum sensors, simulations, and computation using trapped ions and superconducting circuits.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10306 - Optics (including laser optics and quantum optics)

Project
<a href="/en/project/GX21-13265X" target="_blank" >GX21-13265X: Quantum non-Gaussian coherence</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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