Physics

Researchers have developed the most accurate atomic clock ever built, a breakthrough reported by Phys.org. The new clock is expected to improve timekeeping precision far beyond current standards, with potential applications in fundamental physics research, satellite navigation, and tests of general relativity. The announcement is drawing broad attention in the scientific and technology communities.

Researchers have reported the first operation of a quantum computer in space, a milestone that could pave the way for orbital quantum computing and secure space-based quantum communications. Running quantum hardware outside Earth's atmosphere has long been a goal, since space offers conditions for linking quantum systems across vast distances. The achievement is drawing attention across the physics and space communities, with observers calling it an early but significant step toward practical quantum networks beyond Earth.

Physicists have reportedly realized a quantum prediction first made in 1931, nearly a century after it was theorized. The development is drawing attention in science media, with commentators highlighting how a long-standing theoretical idea in quantum mechanics has now been experimentally brought to life. Details of the exact prediction and the team behind the achievement remain limited, but the milestone is being framed as a notable moment for quantum physics research.

The OAPEN Foundation and the Max Planck Society have announced a new partnership to build a dedicated collection of open access books funded by the Max Planck Digital Library. The initiative, run through the Max Planck Digital Library, aims to support open access book publishing for researchers across the Max Planck Society's institutes, expanding the availability of freely accessible scholarly monographs to the global research community.

Engineers have developed tiny robots that can fly and steer without any motor or onboard propulsion, instead using sound waves to control their movement. The approach removes the need for conventional moving parts at very small scales, where fitting motors and power sources is a major obstacle. Researchers say acoustic control could open the door to swarms of miniature flying robots for use in medicine, sensing and inspection tasks.

Egyptian physicist Ahmed El Gendy has presented a promising new approach to cancer treatment that relies on mechanical force rather than heat to target tumours. The method could offer an alternative to heat-based therapies, potentially reducing damage to surrounding healthy tissue. Details on clinical testing and effectiveness have not yet been made widely available, and reaction from the medical community is so far limited.

Researchers report directly observing the disappearance of a single quantum of sound for the first time, a milestone in quantum physics. The experiment involved detecting the smallest possible unit of a sound wave, a phonon, as it vanished. The achievement demonstrates precise control over quantum acoustic states and opens new avenues for quantum computing and sensing research, drawing broad attention across the science community.

An artificial intelligence system has independently computed a 9-loop physics amplitude, surpassing the previous human record for such calculations in quantum field theory. Most real-world calculations in physics stop at 2 or 3 loops because they grow exponentially harder. The result suggests AI could soon handle computations long considered beyond practical reach, prompting excitement among physicists about its research applications.

Researchers have demonstrated a random access quantum memory system in which a single quantum processor can select among seven storage cells, rather than reading stored quantum information sequentially. The result matters for scaling quantum networks and modular quantum computers, where fast, selective retrieval of quantum states is a key engineering hurdle. Details on the research team and the specific physical platform used were not included in the available report.

A quantum communication link has been shown operating over fiber optic cable already carrying 400G Ethernet and 5G traffic, demonstrating that quantum networking can coexist with conventional high-capacity telecommunications on deployed infrastructure rather than requiring dedicated lines. This points to a cheaper path for integrating quantum-secure communications into existing networks.