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Pristine quantum light source created at the edge of silicon chip
Protected pathways for light offer a way to streamline single photon production
Latest News and Research
Latest News and Research
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Researchers see signs of interactive form of quantum matter
- November 30, 2018
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- Research News
News from NIST Researchers at JILA have, for the first time, isolated groups of a few atoms and precisely measured their multi-particle interactions within an atomic clock. They compared the results with theoretical predictions by NIST colleagues Ana Maria Rey and Paul Julienne and concluded that multi-particle interactions occurred."This experiment demonstrates a remarkable... Continue Reading
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A powerful engine roils deep beneath our feet, converting energy in the Earth’s core into magnetic fields that shield us from the solar wind. Similar engines drive the magnetic activity of the sun, other stars and even other planets—all of which create magnetic fields that reinforce themselves and feed back into the engines to keep them running.Much about these engines, which scientists refer... Continue Reading
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Chaos. Time travel. Quantum entanglement. Each may play a role in figuring out whether black holes are the universe’s ultimate information scramblers. In this episode of Relatively Certain, Chris sits down with Brian Swingle, a QuICS Fellow and assistant professor of physics at UMD, to learn about some of the latest theoretical research on black holes—and how experiments to test some of these... Continue Reading
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Modified superconductor synapse reveals exotic electron behaviorScientists see signs of quantum states with boosted immunity.
- September 17, 2018
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- Research News, PFC
Electrons tend to avoid one another as they go about their business carrying current. But certain devices, cooled to near zero temperature, can coax these loner particles out of their shells. In extreme cases, electrons will interact in unusual ways, causing strange quantum entities to emerge. At the Joint Quantum Institute (JQI), Jimmy Williams’ group is working to develop new circuitry that... Continue Reading
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JQI scientists Monroe and Gorshkov are part of a new, $15 million NSF quantum computing project
- August 8, 2018
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- Research News, People News
NSF has announced a $15 million award to a collaboration of seven institutions, including the University of Maryland. The goal: Build the world’s first practical quantum computer."Quantum computers will change everything about the technology we use and how we use it, and we are still taking the initial steps toward realizing this goal," said NSF Director France Córdova. "Developing the first... Continue Reading
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Complexity test offers new perspective on small quantum computers
- August 2, 2018
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- Research News, PFC
State-of-the-art quantum devices are not yet large enough to be called full-scale computers. The biggest comprise just a few dozen qubits—a meager count compared to the billions of bits in an ordinary computer’s memory. But steady progress means that these machines now routinely string together 10 or 20 qubits and may soon hold sway over 100 or more.In the meantime, researchers are busy... Continue Reading
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Semiconductor quantum transistor opens the door for photon-based computing
- July 5, 2018
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- Research News, PFC
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Quantum gas reveals first signs of path-bending monopole
- June 28, 2018
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- Research News, PFC
Magnets, whether in the form of a bar, horseshoe or electromagnet, always have two poles. If you break a magnet in half, you’ll end up with two new magnets, each with its own magnetic north and south.But some physics theories predict the existence of single-pole magnets—a situation akin to electric charges, which come in either positive or negative chunks. One particular incarnation—called the... Continue Reading
Recent Publications
People Profiles
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Steven Olmshenck
Former NRC postdoctoral fellow Steven Olmschenk is currently faculty at Denison University located in Granville, Ohio. Steve was a graduate student in Chris Monroe’s Trapped Ion Quantum Information group and then a postdoc in the NIST Laser Cooling and Trapping Group. While at NIST he worked on Trey Porto’s double-well optical lattice experiment. At Dension he has a group researching physics at the interface of quantum optics and trapped atomic ions.
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Aftaab Dewan
Aftaab Dewan, a graduate fellow at JQI, received undergraduate degrees in physics and mathematics at Amherst College. There, he was a recipient of the Bassett Prize and the Stifler Prize, and conducted research on studying dynamics of Bose-Einstein Condensates. His senior thesis examined how neutrinos scatter off of materials such as lead or glass. He now works with Steve Rolston to understand the transport, coherence, and delocalization properties of BECs. Analyzing the interactions within and between regions of a BEC adds to the ultimate goal of building a quantum simulator.
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Stephen Powell
Stephen Powell, a former JQI postdoctoral fellow at CMTC, now works at the Nordic Institute of Theoretical Physics or Nordita in Stockholm, Sweden. His research in the group of Sankar Das Sarma centered around strongly correlated systems with a specific focus on frustrated magnetism and ultracold gases. At Nordita, he will continue this line of research, which is at the meeting point of condensed matter and atomic physics. In talking of his postdoctoral experience he says, “Something I've particularly enjoyed about being at JQI is having close contact with various experimental groups here.”
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James R. Williams
James R. Williams is a JQI Fellow and assistant professor of physics, and his chief area of research is experimental condensed matter physics. Specifically, he specializes in understanding why certain one and two-dimensional materials (e.g. topological insulators, graphene) depart from normal conductivity provided by free electrons. Dr. Williams received his bachelors in engineering physics at Santa Clara University. He then went on to get his MS and PhD from Harvard University in 2009 on the subject of grapheme, while studying under Charles M. Marcus. He was then a postdoctoral fellow at Stanford before coming to Maryland.
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Alexander Craddock
Alexander Craddock is a PhD student at JQI who earned a Bachelor and Master degree in physics at University College London. As an undergraduate student, he studied whether a commercial device from D-Wave behaved like a quantum computer. After doing master’s work in high-energy physics, his focus shifted back to quantum information. Now he works in Steve Rolston and Trey Porto’s interacting photons group which hopes to one day develop a quantum repeater, a device to allow long distance quantum communication, using Rydberg atoms.
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Elizabeth Goldschmidt
Elizabeth Goldschmidt recently joined the quantum information science group at the Army Research Laboratory. She earned an undergraduate degree in physics at Harvard University. After, she went on to earn a PhD at JQI, where as part of Alan Migdall's research group, she worked on quantum memory and single photon technologies. She then received a National Research Council postdoctoral fellowship at NIST to work with Trey Porto on simulating condensed matter systems with ultracold atoms trapped in optical lattices. In her position at the Army Research Lab, she is starting a new experimental research program focused on quantum memory and quantum information in solid-state materials.
Featured Image
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Pristine quantum light source created at the edge of silicon chip
Protected pathways for light offer a way to streamline single photon production
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Twitter Updates
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Can scientists emulate astrophysical dynamos using a turbulent electron fluid? JQI Fellow and @UMDPhysics professor… t.co/MdO8W4Rdkm
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#quantum bio paper by Martin Plenio @Ulm_University, today’s @UMDPhysics colloquium and Jeff Mechanick Lecture t.co/inOUbh80Jj
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Thanks to all the #sciwri18 attendees who made the trip to College Park. Hope you enjoyed touring the #quantum labs… t.co/1sy3jkIRDz