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Sam Jarman

Sam Jarman

Author

Sam is a freelance science writer who spends most of the year juggling between writing and travelling the world. He has a lifelong interest in astrophysics, but is also fascinated by fast-growing fields in physics including novel materials, medical imaging, and bio-inspired technologies. He also contributes to outlets including Physics World and APS Physics Magazine.

Articles by Sam Jarman

Phys.org / Slime molds make decisions using internal fluid flows

Despite lacking brains or nervous systems, slime molds are capable of making surprisingly sophisticated decisions: navigating mazes, finding food and even remembering where they found it last time. How they manage to do all ...

Jun 12, 2026
Phys.org / Gold nanoparticles unlock vibrant structural colors across the visible spectrum

Colloidal photonic glasses offer an appealing way to produce vivid colors without any chemical dyes—but so far, a stubborn optical effect has long prevented them from generating a true red color. Now, Yuwon Jeon and colleagues ...

Jun 7, 2026
Phys.org / Quantum circuits help AI overcome memory limitations with minimal new parameters

For millions of people, chatbots powered by large language models (LLMs) are now a key feature of everyday life. These AI systems are growing at a rapid pace, but scaling them up is becoming increasingly costly and resource-intensive.

Jun 7, 2026
Phys.org / Cutting a photon in two creates an infinite swarm of particles

By definition, elementary particles can't be broken into smaller pieces. But in a new theoretical study published in Physical Review Letters, Johannes Skaar and colleagues have revealed what would happen if you tried anyway ...

Jun 2, 2026
Phys.org / Quantum light gives a 20-fold boost to ultrafast laser processes

Nonlinear interactions between light and matter are at the heart of some of the most powerful tools in modern optics, but pushing these processes to their limits has long been hampered by a fundamental constraint: the stronger ...

May 30, 2026
Tech Xplore / 3D silicon circuits bring denser computer chips closer to reality

By stacking transistors on top of one another, rather than laying them side by side on a flat chip, many electronic engineers are hopeful that vast amounts of computing power could be packed into tiny spaces, all while cutting ...

May 30, 2026
Phys.org / Ripples in fire-ant collectives suggest motions are driven by neighbor alignments

Researchers in Spain have discovered that in collectives of moving fire ants, rippling "waves" of density and activity are likely triggered by local regions where ants collectively travel in the same direction as their neighbors.

May 28, 2026
Phys.org / Rare observations reveal an X9 solar flare before it erupts

Solar flares are powerful bursts of radiation from the sun's surface, which can wreak havoc on Earth's power grids, damage orbiting satellites, and pose serious radiation risks to astronauts. Yet despite decades of study, ...

May 27, 2026
Phys.org / Memory-preserving transistors could bypass the Boltzmann limit

Researchers have created a new theoretical framework that shows how memory-preserving "memtransistors" could overcome the intrinsic limits in efficiency faced by conventional semiconductor transistors, imposed by the laws ...

May 27, 2026
Phys.org / 'Butterfly' molecule spotted at last, completing a 20-year quantum zoo hunt

For two decades, physicists have predicted the existence of a remarkable family of exotic molecules: giant atoms bound to ordinary atoms, with an electron so distant from its nucleus that it sculpts the pair into bizarre ...

May 25, 2026
Phys.org / Extreme 8.5-minute orbit reveals white dwarf being torn apart by its binary companion

A team of U.S. astronomers has observed a binary pair of white dwarfs where one star is actively devouring material from the other. Led by Emma Chickles at MIT, the researchers revealed one of the clearest views yet of how ...

May 23, 2026
Phys.org / Molecule-in-a-crystal system could boost quantum computing via chemically engineered qubits

Within a crystal's atomic structure, tiny atomic-scale flaws will naturally occur where electrons can become trapped. These defects have emerged as one of the leading platforms for quantum information processing. Through ...

May 21, 2026
Phys.org / Tritium-infused graphene could sharpen the hunt for neutrino mass

While neutrinos are some of the most abundant particles in the universe, they remain among the least understood. One of the biggest puzzles is their mass: although experiments have shown that neutrinos must have some mass, ...

May 19, 2026
Phys.org / Consistency check casts doubt on evolving dark energy

Cosmologists have long struggled to determine whether the universe's accelerating expansion is being driven by a simple cosmological constant, or whether dark energy's influence is evolving over time. In a new analysis published ...

May 19, 2026
Phys.org / Neutrino flavor flips could be key to triggering supernovae

Despite being so elusive, neutrinos are produced in abundance in some of the most violent events in the universe. One of their strangest properties is that they can spontaneously switch between three types, or "flavors": ...

May 17, 2026