To request a media interview, please reach out to School of Physics experts using our faculty directory, or contact Jess Hunt-Ralston, College of Sciences communications director. A list of faculty experts and research areas across the College of Sciences at Georgia Tech is also available to journalists upon request.
Researchers at the Georgia Institute of Technology have managed to build a cascading silicon peashooter -- a smaller, more precise atomic beam collimator. The technology could be used to produce exotic quantum phenomena for scientists to study or to improve devices like atomic clocks or accelerometers, a smartphone component. "A typical device you might make out of this is a next-generation gyroscope for a precision navigation system that is independent of GPS and can be used when you're out of satellite range in a remote region or traveling in space," Chandra Raman, an associate professor of physics at Georgia Tech, said in a news release.
fruit cup 2019-04-23T00:00:00-04:00Rovers tend to be designed like little cars, equipped with wheels that spin on fixed axles. But that can leave the vehicles vulnerable to getting stuck, as Spirit infamously did on Mars. That's why School of Physics Daniel Goldman's team is finding new ways for rovers to move.
GradIO 2019-03-16T00:00:00-04:00Dating back more than 3,000 years, knitting is an ancient form of manufacturing, but Elisabetta Matsumoto of the Georgia Institute of Technology in Atlanta believes that understanding how stitch types govern shape and stretchiness will be invaluable for designing new "tunable" materials. For instance, tissuelike flexible material could be manufactured to replace biological tissues, such as torn ligaments, with stretchiness and sizing personalized to fit each individual. Matsumoto is an assistant professor in the School of Physics.
Katherine Roberts 2019-03-06T00:00:00-05:00Struck by climbing suicide rates, third-year School of Biological Sciences major Collin Spencer organized the first Intercollegiate Mental Health Conference, which kicked off on Feb. 15, 2019. "Mental health is one of the most pressing issues for adolescents in the country right now," Spencer says.
early admit 2 2019-02-20T00:00:00-05:00That's what scientists found while studying the dinnertime of black soldier fly larvae, or maggots. When vast quantities of these larvae feed together, their surging movement around their food creates a living fountain of writhing bodies. That may sound revolting, but the strategy makes maggots uniquely efficient at devouring meals en masse, scientists reported in a new study. [Ear Maggots and Brain Amoeba: 5 Creepy Flesh-Eating Critters] Larvae of the black soldier fly (Hermetia illucens) typically hatch, live and eat together in the hundreds and thousands, and each voracious grub can consume up to twice its body mass in a day, lead study author Olga Shishkov, a doctoral candidate in mechanical engineering at Georgia Tech, told Live Science. Shishkov works with mechanical engineering professor David Hu, who holds concurrent appointments in the Schools of Biological Sciences and of Physics. Story was also covered by Fox News and Science Friday
"Research can always wait. Life is irreplaceable," writes John Wise in his feature for Astronomy behind the scenes of his most recent paper. He's explaining his decision to put his work on hold during his wife's cancer treatment (quoted here). Wise initially set out to answer this question: How do supermassive black holes form in the first place? The feature offers a rare look at the intersection between a researcher's work and his perosnal life. In January, we covered his work on black holes here.
yanni 2019-01-24T00:00:00-05:00
"Even a horse's tail shouts out secrets," says David Hu, who holds joint appointments in the School of Biological Sciences and the School of Mechanical Engineering. For the past few months, Hu had been plagued by a simple question: What's the purpose of a horse's tail? Using biology and engineering, Hu and his team found the answer. Hu is also an adjunct professor in the School of Physics.
work family interactions 2018-10-16T00:00:00-04:00Once more, this ultrapopular story about School of Physics' Dan Goldman's lazy-ant research has been picked up. Maybe we're just really relieved to find out that laziness has some benefits?
campus drone 2018-10-01T00:00:00-04:00Georgia Tech has received an award for $3.7 million from the National Science Foundation to cover 70 percent of the cost of a new high-performance computing (HPC) resource that will be established at the Coda building at Tech Square, which is set to open next spring. Project participants include two from the College of Sciences: David Sherrill, professor of chemistry and biochemistry, and Deirdre Shoemaker, professor of physics.
Brett Aiello 2018-09-11T00:00:00-04:00To revive antibiotics and devise new drug designs, Georgia Tech researchers team up with Oak Ridge’s Titan supercomputer....Knocking out efflux pumps is a promising strategy both to create new drugs and bring old antibiotics back to life, says physicist James C. Gumbart of the Georgia Institute of Technology...Gumbart and his team have used Titan, the Cray XK7 supercomputer at the Oak Ridge Leadership Computing Facility, a Department of Energy (DOE) user facility, to simulate the shape and related stability of proteins related to cells' machinery to expel toxic substances.
jonsson 2018-09-03T00:00:00-04:00Is there a good excuse for laziness? Maybe, if you're in a colony of ants. When they set out to dig a tunnel, only a few of them actually work. The majority just get out of the way. It turns out that their laziness is a key strategy to getting work done efficiently and avoiding traffic jams, found Daniel Goldman of the School of Physics. Find the original Georgia Tech story on his research here and more coverage at Quartz and Popular Mechanics.
John Lewis Student Center 2018-08-17T00:00:00-04:00Ants are renowned for their industriousness. However, new research at Georgia Tech suggests that although ant colonies are very efficient, that may be because 70 percent of them are doing very little — at least when it comes to tunnel digging. Daniel I. Goldman, a physicist at the Georgia Institute of Technology, and his colleagues, found that the secret to efficient tunnel digging by fire ants was that 30 percent of the ants did 70 percent of the work. The work is published in Science. Find more coverage at The Washington Post, ScienceNews and Cosmos.
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Experts in the News
Other planets, dwarf planets and moons in our solar system have seasonal cycles — and they can look wildly different from the ones we experience on Earth, experts told Live Science.
To understand how other planets have seasons, we can look at what drives seasonal changes on our planet. "The Earth has its four seasons because of the spin axis tilt," Gongjie Li, associate professor in the School of Physics, told Live Science. This means that our planet rotates at a slight angle of around 23.5 degrees.
"On Earth, we're very lucky, this spin axis is quite stable," Li said. Due to this, we've had relatively stable seasonal cycles that have persisted for millennia, although the broader climate sometimes shifts as the entire orbit of Earth drifts further or closer from the sun.
Such stability has likely helped life as we know it develop here, Li said. Scientists like her are now studying planetary conditions and seasonal changes on exoplanets to see whether life could exist in faroff worlds. For now, it seems as though the mild seasonal changes and stable spin tilts on Earth are unique.
Live Science 2025-05-05T00:00:00-04:00Biofilms have emergent properties: traits that appear only when a system of individual items interacts. It was this emergence that attracted School of Physics Associate Professor Peter Yunker to the microbial structures. Trained in soft matter physics — the study of materials that can be structurally altered — he is interested in understanding how the interactions between individual bacteria result in the higher-order structure of a biofilm
Recently, in his lab at the Georgia Institute of Technology, Yunker and his team created detailed topographical maps of the three-dimensional surface of a growing biofilm. These measurements allowed them to study how a biofilm’s shape emerges from millions of infinitesimal interactions among component bacteria and their environment. In 2024 in Nature Physics, they described the biophysical laws that control the complex aggregation of bacterial cells.
The work is important, Yunker said, not only because it can help explain the staggering diversity of one of the planet’s most common life forms, but also because it may evoke life’s first, hesitant steps toward multicellularity.
Quanta Magazine 2025-04-21T00:00:00-04:00Postdoctoral researcher Aniruddha Bhattacharya and School of Physics Professor Chandra Raman have introduced a novel way to generate entanglement between photons – an essential step in building scalable quantum computers that use photons as quantum bits (qubits). Their research, published in Physical Review Letters, leverages a mathematical concept called non-Abelian quantum holonomy to entangle photons in a deterministic way without relying on strong nonlinear interactions or irrevocably probabilistic quantum measurements.
Physics World 2025-04-09T00:00:00-04:00Peter Yunker, associate professor in the School of Physics, reflects on the results of new experiments which show that cells pack in increasingly well-ordered patterns as the relative sizes of their nuclei grow.
“This research is a beautiful example of how the physics of packing is so important in biological systems,” states Yunker. He says the researchers introduce the idea that cell packing can be controlled by the relative size of the nucleus, which “is an accessible control parameter that may play important roles during development and could be used in bioengineering.”
Physics Magazine 2025-03-21T00:00:00-04:00School of Physics Professor Ignacio Taboada provided brief commentary on KM3NeT, a new underwater neutrino experiment that has detected what appears to be the highest-energy cosmic neutrino observed to date.
“This is clearly an interesting event. It is also very unusual,” said Taboada, spokesperson for the IceCube experiment in Antarctica. IceCube, which has a similar detector-array design as KM3NeT but is encased in ice rather than water, has detected neutrinos with energies as high as 10 PeV, but nothing in 100 PeV range. “IceCube has worked for 14 years, so it’s weird that we don’t see the same thing,” Taboada said. Taboada is not involved in the KM3Net experiment.
The KM3NeT team is aware of this weirdness. They compared the KM3-230213A event to upper limits on the neutrino flux given by IceCube and the Pierre Auger cosmic-ray experiment in Argentina. Taking those limits as given, they found that there was a 1% chance of detecting a 220-PeV neutrino during KM3NeT’s preliminary (287-day) measurement campaign.
This also appeared in Scientific American and Smithsonian Magazine.
Physics Magazine 2025-02-12T00:00:00-05:00Georgia Tech researchers from the School of Chemistry and Biochemistry, the School of Earth and Atmospheric Sciences, and the School of Physics including Regents' Professor Thomas Orlando, Assistant Professor Karl Lang, and post-doctoral researcher Micah Schaible are among the authors of a paper recently published in Scientific Reports.
Researchers from the University of Georgia and Georgia Tech demonstrated that space weathering alterations of the surface of lunar samples at the nanoscale may provide a mechanism to distinguish lunar samples of variable surface exposure age.
Nature Scientific Reports 2025-01-02T00:00:00-05:00
