Integrated squeezed light sources for two-mode entanglement in thin-film lithium niobate
Fuente:
arXiv
Gespeichert in:
| Hauptverfasser: | , , , , , , , , |
|---|---|
| Format: | Preprint |
| Veröffentlicht: |
2026
|
| Schlagworte: | |
| Online-Zugang: | |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| _version_ | 1866911718350782464 |
|---|---|
| author | Lohmann, Philipp Domeneguetti, Renato R. Wendland, Daniel Perino, Alessandro Egebjerg, Tobias McRae, Liam Neergaard-Nielsen, Jonas S. Pernice, Wolfram H. P. Andersen, Ulrik L. |
| author_facet | Lohmann, Philipp Domeneguetti, Renato R. Wendland, Daniel Perino, Alessandro Egebjerg, Tobias McRae, Liam Neergaard-Nielsen, Jonas S. Pernice, Wolfram H. P. Andersen, Ulrik L. |
| contents | Scalable generation of nonclassical light sources on an integrated platform is a key requirement for photonic quantum information processing. In particular, realizing multiple indistinguishable squeezed light sources on a single chip is an essential step toward continuous-variable quantum computing. Here, we demonstrate the fabrication of two indistinguishable and independently controllable optical parametric oscillators on a thin-film lithium niobate (TFLN) platform. The device design focuses on reproducibility, independent tunability, and compatibility with larger telecom-wavelength continuous-variable photonic circuits. We observe up to 0.5 dB of directly measured squeezing below the shot-noise level from each source. By interfering the two modes on a beam splitter, we generate an EPR-type two-mode squeezed state and verify continuous-variable entanglement through violation of the Duan-Simon inseparability criterion. This is the first demonstration of two independently tunable squeezed-light sources on a single TFLN chip and their use for generating continuous-variable entanglement. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2605_26583 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Integrated squeezed light sources for two-mode entanglement in thin-film lithium niobate Lohmann, Philipp Domeneguetti, Renato R. Wendland, Daniel Perino, Alessandro Egebjerg, Tobias McRae, Liam Neergaard-Nielsen, Jonas S. Pernice, Wolfram H. P. Andersen, Ulrik L. Quantum Physics Optics Scalable generation of nonclassical light sources on an integrated platform is a key requirement for photonic quantum information processing. In particular, realizing multiple indistinguishable squeezed light sources on a single chip is an essential step toward continuous-variable quantum computing. Here, we demonstrate the fabrication of two indistinguishable and independently controllable optical parametric oscillators on a thin-film lithium niobate (TFLN) platform. The device design focuses on reproducibility, independent tunability, and compatibility with larger telecom-wavelength continuous-variable photonic circuits. We observe up to 0.5 dB of directly measured squeezing below the shot-noise level from each source. By interfering the two modes on a beam splitter, we generate an EPR-type two-mode squeezed state and verify continuous-variable entanglement through violation of the Duan-Simon inseparability criterion. This is the first demonstration of two independently tunable squeezed-light sources on a single TFLN chip and their use for generating continuous-variable entanglement. |
| title | Integrated squeezed light sources for two-mode entanglement in thin-film lithium niobate |
| topic | Quantum Physics Optics |
| url | https://arxiv.org/abs/2605.26583 |