Full title: SMARTly Quantum Light Source for Einstein Telescope
Funding: PRIN PNRR 2022
Scientific Coordinator: Maria Parisi (CNR-INO, Naples)
Project Objective:
The SMART_Q_ET project aims to develop a compact, robust, and high-performance source of squeezed quantum light designed for integration into the third-generation gravitational wave detector Einstein Telescope (ET). The main goal is to enhance the sensitivity of optical detection systems beyond the standard quantum limit, especially in the mid-to-low frequency bands.
Main Activities:
- Design and prototyping of squeezed light sources based on cascaded nonlinear optical processes.
- Theoretical modeling and simulations of optimized configurations for advanced interferometers.
- Development of balanced homodyne detection techniques for the characterization and validation of the quantum sources.
Key Technologies:
- Frequency-dependent squeezed light generation.
- Compact and thermally stable optical architectures.
- Advanced nonlinear optics, including crystals and microresonator-based platforms.
Project Participants:
- Maria Parisi (CNR-INO, Naples) – Scientific Coordinator and Principal Investigator
- Simona Mosca (CNR-INO)
- Antigone Marino (CNR-ISASI)
- Rosario Del Rosa (University of Naples Federico II – UNINA contact point)
- Fabio Garufi (University of Naples Federico II)
- Martina De Laurentis (University of Naples Federico II)
Expected Impact:
The project aims to demonstrate a compact and reliable squeezed light source that meets the demanding requirements of next-generation gravitational wave observatories, such as the Einstein Telescope. By pushing the boundaries of quantum optics, it contributes to the broader advancement of quantum technologies for high-precision metrology, enabling measurements with sensitivities beyond classical limits. The outcomes of this research hold promise for a range of applications, including advanced spectroscopy, secure quantum communication, and the detection of extremely weak signals in both fundamental science and emerging technologies.
Thematic Workshop
As part of the SMART_Q_ET project, we are organizing a thematic workshop:
Harnessing Quantum Light Sources: From Fundamentals to Emerging Technologies
Date: November 13, 2025
Location: CNR-INO, Naples, Italy
This event will gather researchers working at the intersection of quantum optics, nonlinear photonics, and gravitational wave detection.
The workshop is open to the scientific community and aims to stimulate collaboration across disciplines.
👉 For more details and registration, visit the dedicated workshop page.