Innovations in Quantum Technology: New Frontiers with Photonic Chips
A collaboration of scientists from Italy, Germany, and France is working on the development of a quantum computer utilizing glass photonic chips.
While quantum computers are expected to surpass traditional computing, their practical implementation faces numerous challenges. The initiative, led by the Polytechnic University of Milan, brings together teams from leading research institutions and small to medium-sized enterprises in France, Italy, and Germany aiming to enhance quantum capabilities through the use of glass.
Researchers are employing innovative glass chips developed by Ephos to create a photonic quantum computer. These chips process and transmit information using light, supporting up to 200 reconfigurable optical modes, allowing for dynamic control over light movement within the chip.
“It is essential to use materials that allow light to pass through. This is a complex task, as it involves restricting light while preventing absorption. If light is absorbed, it cannot propagate,” explains Julia Acconcia from the Polytechnic University of Milan.
The scientists aim to generate individual photons and direct them through glass circuits, which could potentially solve critical issues such as developing more efficient batteries, discovering new drugs, and unraveling the mysteries of the universe. The promising technology of laser printing on glass is being explored; during the process, light particles are generated that travel through optical fibers to the chip. Everything is made of glass, minimizing the risk of photon deviation along the way.
Currently, the German company Pixel Photonics is improving ultra-sensitive detectors for recording every single photon. At the same time, Schott AG manufactures and supplies high-quality glass substrates.
The research team, led by Julia Acconcia, is developing high-performance electronics to manage the system. Additionally, specialists from the Sapienza University of Rome are working on generating single photons.
The French Single Fund is developing open-source software for quantum computing, while teams from the National Center for Scientific Research and the University of Montpellier are modeling advanced solutions for energy storage, which are fundamental for future quantum technology applications.
Researchers at QLASS have a common goal: to create a functioning photonic quantum device at Sapienza University by 2026. Once the project is completed, the software developed at the University of Montpellier and the Single Fund will allow for testing this device.
The first task of the new quantum computer will be to develop more advanced lithium-ion batteries. By employing variational quantum algorithms—special instructions that assist quantum machines in solving problems more effectively—quantum computing can model battery chemistry, accelerate the search for new materials, and even enhance state monitoring.
Although scientists understand the laws governing atoms and compounds, tracking their interactions in real-time is incredibly complex and exceeds the capabilities of current silicon computers. Researchers expect that quantum computers will help expedite the development of new materials for batteries and pharmaceuticals.
The findings of the research have been published in Horizon Magazine.
Source: ZMEScience
