Building Block For Universal Continuous Variables Computation In Superconducting Devices
Fuente:
arXiv
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2026
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866908934264061952 |
|---|---|
| author | Veloso, Bruno A. Diniz, Ciro M. Solak, Luiz O. R. de Castro, Antonio S. M. Rossatto, Daniel Z. Villas-Bôas, Celso J. |
| author_facet | Veloso, Bruno A. Diniz, Ciro M. Solak, Luiz O. R. de Castro, Antonio S. M. Rossatto, Daniel Z. Villas-Bôas, Celso J. |
| contents | Continuous variable (CV) quantum computation offers an alternative to qubit-based computing by exploiting the infinite-dimensional Hilbert space of bosonic modes. Despite recent progress, superconducting platforms have yet to demonstrate a scalable architecture capable of universal computation. Here, we design and numerically simulate a two-layer superconducting architecture that implements all five interactions of the universal CV gate set (rotation, displacement, squeezing, Kerr, and beam splitter) within experimentally accessible regimes. To this end, we employ a DC-SQUID as the bosonic mode, a fluxonium qubit to mediate nonlinear interactions, and two ancillary qubits that enable Gaussian and multi-mode operations. By tuning fluxes and frequencies, we achieve high fidelities ($\geq 98\%$) across all gates within state-of-the-art parameter ranges. The modular nature of the design allows straightforward scaling, establishing a feasible pathway toward high-fidelity, universal CV quantum computation based on superconducting circuits. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_00212 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Building Block For Universal Continuous Variables Computation In Superconducting Devices Veloso, Bruno A. Diniz, Ciro M. Solak, Luiz O. R. de Castro, Antonio S. M. Rossatto, Daniel Z. Villas-Bôas, Celso J. Quantum Physics Continuous variable (CV) quantum computation offers an alternative to qubit-based computing by exploiting the infinite-dimensional Hilbert space of bosonic modes. Despite recent progress, superconducting platforms have yet to demonstrate a scalable architecture capable of universal computation. Here, we design and numerically simulate a two-layer superconducting architecture that implements all five interactions of the universal CV gate set (rotation, displacement, squeezing, Kerr, and beam splitter) within experimentally accessible regimes. To this end, we employ a DC-SQUID as the bosonic mode, a fluxonium qubit to mediate nonlinear interactions, and two ancillary qubits that enable Gaussian and multi-mode operations. By tuning fluxes and frequencies, we achieve high fidelities ($\geq 98\%$) across all gates within state-of-the-art parameter ranges. The modular nature of the design allows straightforward scaling, establishing a feasible pathway toward high-fidelity, universal CV quantum computation based on superconducting circuits. |
| title | Building Block For Universal Continuous Variables Computation In Superconducting Devices |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2604.00212 |