• Research News

    New Protocol Demonstrates and Verifies Quantum Speedups in a Jiffy

    While breakthrough results over the past few years have garnered headlines proclaiming the dawn of quantum supremacy, they have also masked a nagging problem that researchers have been staring at for decades: Demonstrating the advantages of a quantum computer is only half the battle; Read More
  • Research News

    Work on 2D Magnets Featured in Nature Physics Journal

    University of Maryland Professor Cheng Gong (ECE), along with his postdocs Dr. Ti Xie, Dr. Jierui Liang and collaborators in Georgetown University (Professor Kai Liu group), UC Berkeley (Professor Ziqiang Qiu), University of Tennessee, Knoxville (Professor David Mandrus group) and UMD Physics (Professor Victor M. Yakovenko), have made Read More
  • Research News

    NASA’s Parker Solar Probe Reveals a Key Particle Accelerator Near the Sun

    Flying closer to the sun than any spacecraft before it, NASA’s Parker Solar Probe uncovered a new source of energetic particles near Earth’s star, according to a new study co-authored by University of Maryland researchers.  Published in The Astrophysical Journal Letters on May 29, 2025, Read More
  • Research News

    Time Crystal Research Enters a New Phase

    Our world only exists thanks to the diverse properties of the many materials that make it up. The differences between all those materials result from more than just which atoms and molecules form them. A material’s properties also depend on how those basic building Read More
  • Research News

    Mysteriously Mundane Turbulence Revealed in 2D Superfluid

    Despite existing everywhere, the quantum world is a foreign place where many of the rules of daily life don’t apply. Quantum objects jump through solid walls; quantum entanglement connects the fates of particles no matter how far they are separated; and quantum objects may Read More
  • Research News

    A New Piece in the Matter–Antimatter Puzzle

    aOn March 24, 2025 at the annual Rencontres de Moriond conference taking place in La Thuile, Italy, the LHCb collaboration at CERN reported a new milestone in our understanding of the subtle yet profound differences between matter and antimatter. In its analysis of large Read More
  • Research News

    Researchers Play a Microscopic Game of Darts with Melted Gold

    Sometimes, what seems like a fantastical or improbable chain of events is just another day at the office for a physicist. In a recent experiment by University of Maryland researchers at the Laboratory for Physical Sciences, a scene played out that would be right Read More
  • Research News

    IceCube Search for Extremely High-energy Neutrinos Contributes to Understanding of Cosmic Rays

    Neutrinos are chargeless, weakly interacting particles that are able to travel undeflected through the cosmos. The IceCube Neutrino Observatory at the South Pole searches for the sources of these astrophysical neutrinos in order to understand the origin of high-energy particles called cosmic rays and, Read More
  • Research News

    Twisted Light Gives Electrons a Spinning Kick

    It’s hard to tell when you’re catching some rays at the beach, but light packs a punch. Not only does a beam of light carry energy, it can also carry momentum. This includes linear momentum, which is what makes a speeding train hard to Read More
  • 1 New Protocol Demonstrates and Verifies Quantum Speedups in a Jiffy
  • 2 Work on 2D Magnets Featured in Nature Physics Journal
  • 3 NASA’s Parker Solar Probe Reveals a Key Particle Accelerator Near the Sun
  • 4 Time Crystal Research Enters a New Phase
  • 5 Mysteriously Mundane Turbulence Revealed in 2D Superfluid
  • 6 A New Piece in the Matter–Antimatter Puzzle
  • 7 Researchers Play a Microscopic Game of Darts with Melted Gold
  • 8 IceCube Search for Extremely High-energy Neutrinos Contributes to Understanding of Cosmic Rays
  • 9 Twisted Light Gives Electrons a Spinning Kick

Physics is Phun

Department News

  • UMD Physics Rated #19 in the World The University of Maryland Department of Physics was ranked No. 19 globally in U.S. News & World Report’s list of 2025-26 Best Global Universities. Of U.S. campuses, only three public universities--and 10 overall--ranked higher in physics. "This is a tribute to all of us working Read More
  • Alumni Honored with NSF Fellowships Physics graduates Jade LeSchack, Elaine Taylor and Jeffrey Wack have received prestigious National Science Foundation (NSF) Graduate Research Fellowships, which recognize outstanding graduate students in science, technology, engineering, and mathematics. This year’s awardees from the University of Maryland’s College of Computer, Mathematical, and Natural Sciences (CMNS) Read More
  • Hafezi Receives Humboldt Research Award Mohammad Hafezi has received a Humboldt Research Award, which acknowledges his history of impactful research and supports visiting Germany to collaborate with colleagues there. Each year, the Alexander von Humboldt Foundation gives the award, which is supported by the Federal Foreign Office and the Federal Ministry of Read More
  • Sasha Philippov Named Outstanding Young Scientist Assistant Professor Sasha Philippov has received the 2025 Maryland Outstanding Young Scientist (OYS) award. The OYS award program was established in 1959 to recognize and celebrate extraordinary contributions of young Maryland scientists. In 1988 the Outstanding Young Engineer (OYE) award was established to recognize contributions in engineering. Both Read More
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Upcoming Events

1 Jul
Dissertation Defense: Noah Berthusen
Date Tue, Jul 1, 2025 10:00 am - 12:00 pm
2 Jul
CMTC JLDS Seminar
Wed, Jul 2, 2025 11:00 am - 12:00 pm
17 Jul
Dissertation Defense: Dhruv Devulapalli
Thu, Jul 17, 2025 10:00 am - 12:00 pm
18 Jul
Dissertation Defense: Yijia Xu
Fri, Jul 18, 2025 12:00 pm - 2:00 pm
9 Oct
CMTC JLDS Colloquium
Thu, Oct 9, 2025 11:00 am - 12:00 pm

The Challenge of Sustainability: Lessons from an Evolutionary Perspective

Simon Asher Levin, Princeton University & Center for Applied Mathematics Cornell University
December 08, 2009

The continual increase in the human population, magnified by increasing per capita demands on Earth’s limited resources, raise the urgent mandate of understanding the degree to which these patterns are sustainable. The scientific challenges posed by this simply stated goal are enormous, and cross disciplines. What measures of human welfare should be at the core of definitions of sustainability, and how do we discount the future and deal with problems of intra-generational and inter-generational equality? How do environmental and socioeconomic systems become organized as complex adaptive systems, and what are the implications for dealing with public goods at scales from the local to the global? How does the increasing interconnectedness of coupled natural and human systems affect the robustness of aspects of importance to us, and what are the implications for management, what is the role of social norms, and how do we achieve cooperation at the global level? All these issues have parallels in evolutionary biology, and this lecture will explore what lessons can be learned from ecology and evolutionary theory for addressing the problems posed by achieving a sustainable future.

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Colloquia are held Tuesdays in Room 1410 at 4:00 pm (preceded by light refreshments at 3:30). If you have additional questions, please call 301-405-5946.

Dark Matter in the Universe

Katherine Freese, University of Michigan
November 17, 2009

Only 4% of the Universe is made of the ordinary atomic matter that constitutes the objects in our daily experience as well as ourselves. The majority of the Universe resides in the Dark Side: Dark Matter and Dark Energy. This talk will examine the dark matter that comprises 95% of the mass of the Milky Way and all other galaxies. I will begin by reviewing the observational evidence for dark matter including rotation curves of galaxies. Then, I will discuss proposed candidates for the dark matter, which is probably made of some new kind of fundamental particle. The best motivated dark matter particles are Weakly Interacting Massive Particles, or WIMPs, such as supersymmetric particles or particles from extra dimensions. A great deal of excitement currently pervades this field because of current and upcoming experiments that can find the dark matter, via both direct and indirect techniques. We first made these predictions twenty years ago, and it is very exciting that more and more unexplained signals are emerging that may in fact be signatures of dark matter detection. These particles have been powerful motivation for the LHC at CERN, the underground experiments such as XENON, satellites such as FERMI or PAMELA, and neutrino detectors such as ICECUBE at the South Pole. The current status will be discussed. In the remainder of the talk, I will also discuss Dark Stars: the first stars to form in the universe may be powered by WIMP dark matter heating rather than by fusion (a new phase of stellar evolution) and may be detectable as well..

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Colloquia are held Tuesdays in Room 1410 at 4:00 pm (preceded by light refreshments at 3:30). If you have additional questions, please call 301-405-5946.

Modeling the Dynamics and Gravitational-Wave Emission of Coalescing Binary Black Holes

Alessandra Buonanno, University of Maryland
November 03, 2009

In general relativity, spacetime is a dynamic and elastic entity both influencing and influenced by the distribution of mass and energy that it contains. Solving the two-body problem in general relativity is therefore much more challenging than in Newtonian gravity.  Recent developments at the interface between analytical and numerical relativity have deepened our understanding of the two-body problem in general relativity, revealing an intriguing simplicity. I will review those advances, focusing on the most dynamical and non-linear phase of the coalescence of binary black holes -- that is, when the two black holes end their long inspiral with a plunge, merge with each other, and leave behind a “ringing” black hole. I will also discuss the implications of the advances for the search for gravitational waves -- especially with respect to building analytical templates of black hole coalescences, and, in astrophysics, to calculating the distribution of recoil velocities.

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Colloquia are held Tuesdays in Room 1410 at 4:00 pm (preceded by light refreshments at 3:30). If you have additional questions, please call 301-405-5946.

Leonardo's Model

Bulent Atalay, University of Mary Washington
December 01, 2009

Leonardo was a part-time artist, a passionate scientist, and a consummate inventor, whose interests were frequently inseparable. Physicist-artist Bulent Atalay invokes ‘Leonardo’s Model,’ in order to achieve the larger goal of achieving a synthesis of the two fields by presenting science through art, and art through science

Part I. “The Artist Doing Science” Described by legendary art historian Lord Kenneth Clark as the “most relentlessly curious man in history,” Leonardo constantly sought patterns, symmetries and connections in all of his studies. His astonishingly sharp observational skills led him not to prefigure sciences not to be formally invented for centuries. With unmatched drafting skills, he illustrated his ideas that reveal him to be one of the greatest scientists ever. Leonardo was in the business of inventing the future, but, since he was not publishing his discoveries, was not influencing the future.

Part II. “The Scientist Doing Art.” An extraordinary level of reciprocity exists between Leonardo the artist and Leonardo the scientist-engineer. The qualities of timelessness and universality in his miraculous works speak eloquently for themselves. He created the two most famous works in the history of art. With ‘Leonardo's Model’ providing the unifying thread, however, it becomes possible, first, to glimpse his restless intellect, that extraordinary psyche; second, to see whence the ideas for his works of art came; and ultimately to appreciate his art at a different level.

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Colloquia are held Tuesdays in Room 1410 at 4:00 pm (preceded by light refreshments at 3:30). If you have additional questions, please call 301-405-5946.

Statistical Physics Meets Neurobiology: Is Your Brain Wired Optimally?

Dmitri Chklovskii, Howard Hughes Medical Institute
November 10, 2009

The human brain is a network containing a hundred billion neurons, each communicating with several thousand others. As the wiring for neuronal communication draws on limited space and energy resources, evolution had to optimize their use. This principle of minimizing wiring costs explains many features of brain architecture, including placement and shape of many neurons. However, the shape of some neurons and their synaptic properties remained unexplained. This led us to the principle of maximization of brain's ability to store information, which can be expressed as maximization of entropy. Combination of the two principles, analogous to the minimization of free energy in statistical physics, provides a systematic view of brain architecture, necessary to explain brain function.

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Colloquia are held Tuesdays in Room 1410 at 4:00 pm (preceded by light refreshments at 3:30).  If you have additional questions, please call 301-405-5946.