Photon

Researchers have used a quantum computer to simulate how matter can emerge from pure energy, a process linked to pair production in which energetic particles such as photons convert into particle-antiparticle pairs. The demonstration shows how quantum hardware can model fundamental physics processes that are extremely difficult to capture with classical computers, offering a new tool for studying high-energy phenomena.

French photonic quantum computing company Quandela is looking to partner with Korean firms to manufacture its photonic quantum chips. The move would tie Quandela's quantum photonics technology to South Korea's semiconductor manufacturing base, potentially speeding up production of its quantum processors. Details on specific partners, timelines, or investment amounts were not disclosed, leaving the scope of the collaboration uncertain.

RoboTechnik completed its Hong Kong listing on September 29 and began trading on the Hong Kong Stock Exchange. The company, active in photonics and silicon automation for manufacturing, adds to the flow of semiconductor-related firms seeking listings in Hong Kong. The move gives the company access to public capital markets as demand for automation and chip manufacturing equipment remains strong.

Researchers report that hyperbolic wave attractors, structures that trap and concentrate light waves, could be used to build next-generation optical chips. By confining light more efficiently, the approach may improve photonic circuits used in computing and communications. Details of the research and its practical applications remain limited in the available reporting.

Researchers have put forward an explanation for how a photon with an energy of 300 teraelectronvolts — among the most energetic gamma rays ever detected — could have travelled to Earth. The finding addresses a long-standing puzzle, since such high-energy photons should be destroyed by interactions with background light on their way through the universe, and the proposed mechanism sheds light on extreme cosmic accelerators.

Physics World has published a discussion in which experts assess the future of photonics, weighing the field's main challenges against its opportunities. The piece surveys where light-based technologies are heading and what obstacles researchers and industry must overcome to realise their potential.

LightCounting has published a roundup of highlights from CIOE 2026, the China International Optoelectronic Exposition. The recap covers developments showcased at the event, a key gathering for the optical communications and photonics industry. Industry watchers are looking to the show for signals on optical component and module trends.

Reports describe a single photon that traveled roughly 2 billion light-years before reaching Earth, a journey that current physics supposedly says should not have been possible. The claim is circulating widely, but no specific observatory, source event, or research team has been named, so the finding's details and significance remain unverified.

Researchers working under Optica's ultrafast laser research report that new laser techniques can reveal how materials respond to light down to the level of individual electrons. The advance gives scientists a more direct view of the electron dynamics that underpin light-matter interactions, with potential relevance for photonics, electronics and materials science, though detailed findings remain limited in available coverage.

Researchers at the University of Rochester are combining light and sound in new ways to probe fundamental questions in physics. The work pairs photons with phonons, opening possibilities for studying quantum phenomena and developing new sensing technologies. Details of the specific experiments and their implications remain limited in the available reporting.

Startup Photon, which staged a symbolic funeral for mobile apps, has raised $4.5 million to build software agents it believes will replace traditional apps. The funding signals continued investor appetite for agentic AI, with the company arguing that conversational agents can handle tasks currently done through app interfaces.

Researchers report a technique for controlling electron motion using three-dimensional sculpted light fields, a physics advance described on EurekAlert. By shaping light in three dimensions, scientists aim to direct electrons with greater precision, with potential implications for ultrafast science and future electronic or photonic technologies. Details of the team, institutions and applications were not provided in the available coverage.

Researchers report a quantum entanglement experiment linking glass dust with light, suggesting that ordinary granular material can be entangled with optical photons. The work points to new ways of studying quantum effects in larger, everyday materials, though detailed findings and the team behind the result have not been widely reported yet.

Northeastern Global News is reporting on a research study described as 'a study in light and focus,' suggesting new work in optics or photonics from the university's researchers. Few details are available beyond the headline, and the piece is being shared in science-focused coverage without significant public engagement so far. The exact findings and the research team involved remain unspecified in the available information.

Photon, a startup betting that AI agents will supplant traditional mobile apps, has raised $4.5 million in funding. The company marked the announcement with a symbolic funeral for mobile apps, underscoring its argument that app-based interfaces are on their way out. The funding will support its effort to build agent-based alternatives that handle tasks directly rather than through individual apps.

Researchers report that a quantum Hall insulator can be used to link resonators so that signals travel in only one direction, a property known as nonreciprocal transmission. The approach exploits the topological edge states characteristic of the quantum Hall effect, which could prove useful for routing signals in photonic or microwave circuits without backward reflections or interference.

Photon has raised USD4.5 million in a seed funding round, as reported by startup and venture news outlet FinSMEs. The round signals continued investor interest in early-stage startups, though details on the company's sector, backers, and planned use of funds were not provided in the initial report.

nLIGHT, Inc., a laser technology company traded on NASDAQ under the ticker LASR, is seeing increased attention on its stock price, news coverage and trading history. Investors are checking quotes and recent developments around the company, though no specific announcement or price movement is confirmed. The interest appears tied to general market monitoring of the laser and photonics sector.

Researchers have offered an explanation for how a photon with an energy of 300 teraelectronvolts, one of the highest-energy photons ever detected, could have travelled to Earth. Such extreme gamma rays are expected to be absorbed or degraded over interstellar distances, so the finding has drawn attention from physicists discussing the mechanisms that could allow it to survive the journey and what it reveals about cosmic accelerators.

Researchers report a new method for generating photons that are nearly indistinguishable from one another, a key requirement for quantum communication technologies such as quantum key distribution and quantum networks. The advance is being reported in physics and photonics circles as a step toward more reliable quantum information systems.

Photon Marine has received funding for its 'ChargeBarge' project, a floating storage and charging solution for electric boats. The company develops electric propulsion systems for workboats, and the barge concept would provide charging infrastructure on the water where shore power is limited. Details on the funding amount and backers were not disclosed in initial reports.

Xanadu Quantum Technologies, the Toronto-based photonic quantum computing company now trading under the ticker XNDU, is drawing attention as investors follow its share price, quotes and company news on financial platforms. The stock is being watched as part of broader interest in publicly listed quantum computing firms, where early-stage commercial timelines make valuations volatile and each company announcement or sector development can move prices noticeably.