Quadrature squeezing in a nanophotonic microresonator
- URL: http://arxiv.org/abs/2502.17337v1
- Date: Mon, 24 Feb 2025 17:09:10 GMT
- Title: Quadrature squeezing in a nanophotonic microresonator
- Authors: Alexander E. Ulanov, Bastian Ruhnke, Thibault Wildi, Tobias Herr,
- Abstract summary: We show single-mode quadrature squeezing in a photonic crystal microresonator via degenerate dual-pump spontaneous four-wave mixing.<n>Results open a promising pathway toward integrated squeezed light sources for quantum-enhanced interferometry, Gaussian boson sampling, coherent Ising machines, and universal quantum computing.
- Score: 42.29248343585333
- License: http://creativecommons.org/licenses/by-nc-sa/4.0/
- Abstract: Squeezed states of light are essential for emerging quantum technology in metrology and information processing. Chip-integrated photonics offers a route to scalable and efficient squeezed light generation, however, parasitic nonlinear processes and optical losses remain significant challenges. Here, we demonstrate single-mode quadrature squeezing in a photonic crystal microresonator via degenerate dual-pump spontaneous four-wave mixing. Implemented in a scalable, low-loss silicon-nitride photonic-chip platform, the microresonator features a tailored nano-corrugation that modifies its resonances to suppress parasitic nonlinear processes. In this way, we achieve an estimated 7.8 dB of on-chip squeezing in the bus waveguide, with potential for further improvement. These results open a promising pathway toward integrated squeezed light sources for quantum-enhanced interferometry, Gaussian boson sampling, coherent Ising machines, and universal quantum computing.
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