Environment-Assisted Generation of Non-Gaussian Wavepacket Quantum States
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arXiv
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| Main Authors: | , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866914092892028928 |
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| author | Khanahmadi, Maryam Mølmer, Klaus |
| author_facet | Khanahmadi, Maryam Mølmer, Klaus |
| contents | Generating non-Gaussian states and converting them into traveling wavepackets is crucial yet challenging for scalable, fault-tolerant quantum computing. We present a hardware-efficient approach that simultaneously achieves both tasks by combining an engineered nonlinear dissipation with a linear transmission loss from a superconducting circuit to a waveguide. This combination of dissipative channels leverages low-order interactions to induce a high-order nonlinearity, enabling deterministic emission of a wide range of non-Gaussian, error-correctable states, such as Schrödinger cat states, GKP states, and pair-cat states. We identify experimental superconducting circuit platforms and realistic parameter regimes for our proposal. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_04513 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Environment-Assisted Generation of Non-Gaussian Wavepacket Quantum States Khanahmadi, Maryam Mølmer, Klaus Quantum Physics Generating non-Gaussian states and converting them into traveling wavepackets is crucial yet challenging for scalable, fault-tolerant quantum computing. We present a hardware-efficient approach that simultaneously achieves both tasks by combining an engineered nonlinear dissipation with a linear transmission loss from a superconducting circuit to a waveguide. This combination of dissipative channels leverages low-order interactions to induce a high-order nonlinearity, enabling deterministic emission of a wide range of non-Gaussian, error-correctable states, such as Schrödinger cat states, GKP states, and pair-cat states. We identify experimental superconducting circuit platforms and realistic parameter regimes for our proposal. |
| title | Environment-Assisted Generation of Non-Gaussian Wavepacket Quantum States |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2504.04513 |