Quantum squeezing amplification with a weak Kerr nonlinear oscillator
Fuente:
arXiv
Guardado en:
| Autores principales: | , , , , , , , , , , |
|---|---|
| Formato: | Preprint |
| Publicado: |
2025
|
| Materias: | |
| Acceso en línea: | |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| _version_ | 1866914540937019392 |
|---|---|
| author | Cai, Yanyan Deng, Xiaowei Zhang, Libo Ni, Zhongchu Mai, Jiasheng Huang, Peihao Zheng, Pan Hu, Ling Liu, Song Xu, Yuan Yu, Dapeng |
| author_facet | Cai, Yanyan Deng, Xiaowei Zhang, Libo Ni, Zhongchu Mai, Jiasheng Huang, Peihao Zheng, Pan Hu, Ling Liu, Song Xu, Yuan Yu, Dapeng |
| contents | Quantum squeezed states, with reduced quantum noise, have been widely utilized in quantum sensing and quantum error correction applications. However, generating and manipulating these nonclassical states with a large squeezing degree typically requires strong nonlinearity, which inevitably induces additional decoherence that diminishes the overall performance. Here, we demonstrate the generation and amplification of squeezed states in a superconducting microwave cavity with weak Kerr nonlinearity. By subtly engineering an off-resonant microwave drive, we observe cyclic dynamics of the quantum squeezing evolution for various Fock states |N> with N up to 6 in displaced frame of the cavity. Furthermore, we deterministically realize quantum squeezing amplification by alternately displacing the Kerr oscillator using the Trotterization technique, achieving a maximum squeezing degree of 14.6 dB and squeezing rate of 0.28 MHz. Our hardware-efficient displacement-enhanced squeezing operations provide an alternative pathway for generating large squeezed states, promising potential applications in quantum-enhanced sensing and quantum information processing. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_08197 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Quantum squeezing amplification with a weak Kerr nonlinear oscillator Cai, Yanyan Deng, Xiaowei Zhang, Libo Ni, Zhongchu Mai, Jiasheng Huang, Peihao Zheng, Pan Hu, Ling Liu, Song Xu, Yuan Yu, Dapeng Quantum Physics Quantum squeezed states, with reduced quantum noise, have been widely utilized in quantum sensing and quantum error correction applications. However, generating and manipulating these nonclassical states with a large squeezing degree typically requires strong nonlinearity, which inevitably induces additional decoherence that diminishes the overall performance. Here, we demonstrate the generation and amplification of squeezed states in a superconducting microwave cavity with weak Kerr nonlinearity. By subtly engineering an off-resonant microwave drive, we observe cyclic dynamics of the quantum squeezing evolution for various Fock states |N> with N up to 6 in displaced frame of the cavity. Furthermore, we deterministically realize quantum squeezing amplification by alternately displacing the Kerr oscillator using the Trotterization technique, achieving a maximum squeezing degree of 14.6 dB and squeezing rate of 0.28 MHz. Our hardware-efficient displacement-enhanced squeezing operations provide an alternative pathway for generating large squeezed states, promising potential applications in quantum-enhanced sensing and quantum information processing. |
| title | Quantum squeezing amplification with a weak Kerr nonlinear oscillator |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2503.08197 |