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Photon
Trends
- 1
Physicists have outlined how a photon with an energy of 300 teraelectronvolts โ far beyond what human accelerators can produce โ could have travelled to Earth. The finding, reported by Physics World, concerns ultra-high-energy gamma rays whose survival across interstellar distances challenges expectations, since such photons should be destroyed by interactions with background light. Researchers propose mechanisms that could allow them to arrive intact.
- 2Physicists measure the W state of three entangled photonsโผPhysicists measure the W state of three quantum-entangled photons โ ScienceAlert
Physicists have reported measuring the W state of three quantum-entangled photons, a milestone in quantum optics. The W state is a form of multi-particle entanglement in which information is distributed across three photons, useful for testing quantum foundations and building quantum technologies such as secure communication and photonic computing. Researchers say the measurement demonstrates precise control over three-particle entanglement in the lab, advancing work toward practical quantum networks.
- 3Citizen Eco-Drive PHOTON Launches in India with Light-Powered DialโผCitizen Eco-Drive PHOTON Price in India, Specs and the Physics Behind Its Dial
Citizen has introduced the Eco-Drive PHOTON in India, drawing attention for its watchmaking and the physics of its light-charging dial technology. Coverage details the model's Indian pricing and specifications, explaining how the Eco-Drive system converts light into energy to power the watch without a battery. The dial's design and its interaction with light are a focal point of the discussion.
- 4
Shares of XNDU rose following news of a deal with ASML aimed at tackling optical loss in photonic quantum chips. Optical loss is a key technical barrier to scaling photonic quantum computing, so a partnership with lithography leader ASML to address it drew attention from investors and boosted the stock.
- 5Penn State Team Develops Electro-Optic Thin Films for Quantum and AIโExceptional Electro-Optic Thin Films for Quantum and AI Applications โ UNLOC
Researchers with the UNLOC project at Pennsylvania State University report developing exceptional electro-optic thin films, materials that convert electrical signals into optical ones with high efficiency. Such films are considered key building blocks for faster optical modulators, with potential uses in quantum information systems and AI hardware where data transfer speed and energy efficiency are critical.
- 6Marvell Stock Climbs Premarket Ahead of S&P 500 EntryโผMRVL Stock Rises Premarket: Marvell Ships Over 5M Photonic Chips Ahead Of S&P 500 Entry
Marvell Technology shares rose in premarket trading after the chipmaker said it has shipped more than 5 million photonic chips. The milestone comes as the company prepares to join the S&P 500 index. The announcement was circulated on investor-focused forums, where traders flagged the dual catalysts of the shipment milestone and the index inclusion.
- 7GlobalFoundries Gets $300 Million Boost From CHIPS Act AwardโGlobalFoundries Gets $300M CHIPS Award Boost From Trump Administration โ NVDA's Jensen Huang Calls Silicon Photonics 'Essential' To AI Future
GlobalFoundries has received an additional $300 million award under the CHIPS Act from the Trump administration, strengthening US chip manufacturing support. Separately, Nvidia CEO Jensen Huang said silicon photonics is 'essential' to the future of AI, highlighting growing demand for optical interconnect technology in data centers. The moves underline Washington's continued push to onshore semiconductor production while Nvidia frames photonics as key infrastructure for scaling AI systems.