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Latest News and Research

Ions clear another hurdle toward scaled-up quantum computing
Scientists demonstrate parallel entangling operations on a small quantum device.

Scientists at the Joint Quantum Institute (JQI) have been steadily improving the performance of ion trap systems, a leading platform for future quantum computers. Now, a team of researchers led by JQI Fellows Norbert Linke and Christopher Monroe has performed a key experiment on five ion-based quantum bits, or qubits. They used laser pulses to simultaneously create quantum connections between different pairs of qubits—the first time these kinds of parallel operations have been executed in an ion trap. The new study, which is a critical step toward large-scale quantum computation, was published on July 24 in the journal Nature.    ... Continue Reading
Corkscrew photons may leave behind a spontaneous twist

Everything radiates. Whether it's a car door, a pair of shoes or the cover of a book, anything hotter than absolute zero (i.e., pretty much everything) is constantly shedding radiation in the form of photons, the quantum particles of light.A twin process—absorption—is usually also present. As photons carry away energy, passers-by from the environment can be absorbed to replenish it. When absorption and emission occur at the same rate, scientists say that an object is in equilibrium with its environment. This often means that object and environment share the same temperature.Far away from equilibrium, new behaviors can emerge. In a... Continue Reading
Second annual trapped-ion conference comes to UMD

The University of Maryland will host the 2nd North American Conference on Trapped Ions (NACTI) from July 22-26. This year’s conference comes two years after the inaugural meeting, which was held on the Boulder, Colorado campus of the National Institute of Standards and Technology (NIST).More than 230 students and researchers from around the globe, all working on the science of trapped atomic ions, will attend five days of sessions at the Edward St. John Learning & Teaching Center on campus at UMD. Continue Reading
Gorshkov receives early-career research award

Alexey Gorshkov, a JQI Fellow and a Fellow of the Joint Center for Quantum Information and Computer Science, has received a Presidential Early Career Award for Scientists and Engineers (PECASE). The honor, which is the most prestigious offered by the United States Government to young researchers, was announced July 2. More than 300 scientists and engineers around the country were recognized by PECASE this year for contributions to their respective fields, as well as for their accomplishments in scientific leadership, education, and outreach. This was the first time the award has been given out since 2017, and the winners included researchers... Continue Reading
Ring resonators corner light

Researchers at the Joint Quantum Institute (JQI) have created the first silicon chip that can reliably constrain light to its four corners. The effect, which arises from interfering optical pathways, isn't altered by small defects during fabrication and could eventually enable the creation of robust sources of quantum light.That robustness is due to topological physics, which describes the properties of materials that are insensitive to small changes in geometry. The cornering of light, which was reported June 17 in Nature Photonics, is a realization of a new topological effect, first predicted in 2017. Continue Reading
Gorshkov student, Kevin Qian, wins 2nd place in prestigious international science fair

Kevin Qian of Montgomery Blair High School placed 2nd in the Physics and Astronomy category at the International Science and Engineering Fair (ISEF) 2019 with his research topic “Heisenberg-Scaling Measurement Protocol for Analytic Functions with Quantum Sensor Networks.” Qian worked with Adjunct Associate Professor Alexey Gorshkov and graduate student researcher Zachary Eldredge in the University of Maryland Department of Physics, the Joint Quantum Institute (JQI), and the Joint Center for Quantum Information and Computer Science (QuICS). Continue Reading
JQI Fellow Hafezi Named Finalist for Blavatnik Award

JQI Fellow Mohammad Hafezi has been named a finalist for the 2019 Blavatnik National Awards for Young Scientists.He is one of 31 researchers competing for three Blavatnik National Laureate Awards in the categories of Physical Sciences and Engineering, Chemistry and Life Sciences, and is one of 10 finalists in Physical Sciences and Engineering. Each of the three National Laureates will win $250,000—the world’s largest unrestricted prize for early-career scientists. The awards are sponsored by the Blavatnik Family Foundation and the New York Academy of Sciences.... Continue Reading
New Simons Collaboration on "Ultra-Quantum Matter" spans 12 institutions, including UMD
A team of theoretical physicists will investigate quantum physics on macroscopic scales.

Seventeen theoretical physics faculty across 12 institutions have established a new Simons Collaboration on Ultra-Quantum Matter. The team, which includes Victor Galitski, a Chesapeake Chair Professor of Theoretical Physics in the Department of Physics and Fellow of the Joint Quantum Institute, will investigate innovative ideas about how quantum physics works on macroscopic scales. This new effort will be led by Professor Ashvin Vishwanath at Harvard University and is supported under the Simons Collaborations in Mathematics and Physical Sciences program, which aims to “stimulate progress on fundamental scientific questions of major importance in mathematics, theoretical physics and theoretical computer science."... Continue Reading
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Upcoming Events

JQI Summer School
August 23, 2019
Strongly Interacting Photons
Przemek Bienias | JQI
JQI Seminar
September 9, 2019
Towards a large scale quantum computer using advanced fabrication technologies
James S. Clarke | Intel Corporation
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Latest News and Research

  • Ions clear another hurdle toward scaled-up quantum computing
    Scientists demonstrate parallel entangling operations on a small quantum device.

    Scientists at the Joint Quantum Institute (JQI) have been steadily improving the performance of ion trap systems, a leading platform for future quantum computers. Now, a team of researchers led by JQI Fellows Norbert Linke and Christopher Monroe has performed a key experiment on five ion-based quantum bits, or qubits. They used laser pulses to simultaneously create quantum connections between... Continue Reading
  • Corkscrew photons may leave behind a spontaneous twist

    Everything radiates. Whether it's a car door, a pair of shoes or the cover of a book, anything hotter than absolute zero (i.e., pretty much everything) is constantly shedding radiation in the form of photons, the quantum particles of light.A twin process—absorption—is usually also present. As photons carry away energy, passers-by from the environment can be absorbed to replenish it. When... Continue Reading
  • Second annual trapped-ion conference comes to UMD

    The University of Maryland will host the 2nd North American Conference on Trapped Ions (NACTI) from July 22-26. This year’s conference comes two years after the inaugural meeting, which was held on the Boulder, Colorado campus of the National Institute of Standards and Technology (NIST).More than 230 students and researchers from around the globe, all... Continue Reading
  • Gorshkov receives early-career research award

    Alexey Gorshkov, a JQI Fellow and a Fellow of the Joint Center for Quantum Information and Computer Science, has received a Presidential Early Career Award for Scientists and Engineers (PECASE). The honor, which is the most prestigious offered by the United States Government to young researchers, ... Continue Reading
  • Ring resonators corner light

    Researchers at the Joint Quantum Institute (JQI) have created the first silicon chip that can reliably constrain light to its four corners. The effect, which arises from interfering optical pathways, isn't altered by small defects during fabrication and could eventually enable the creation of robust sources of quantum light.That robustness is due to topological physics, which describes the... Continue Reading
  • Gorshkov student, Kevin Qian, wins 2nd place in prestigious international science fair

    Kevin Qian of Montgomery Blair High School placed 2nd in the Physics and Astronomy category at the International Science and Engineering Fair (ISEF) 2019 with his research topic “Heisenberg-Scaling Measurement Protocol for Analytic Functions with... Continue Reading
  • JQI Fellow Hafezi Named Finalist for Blavatnik Award

    JQI Fellow Mohammad Hafezi has been named a finalist for the 2019 Blavatnik National Awards for Young Scientists.He is one of 31 researchers competing for three Blavatnik National Laureate Awards in the categories of Physical Sciences and Engineering, Chemistry and Life Sciences, and is one of 10 finalists in... Continue Reading
  • New Simons Collaboration on "Ultra-Quantum Matter" spans 12 institutions, including UMD
    A team of theoretical physicists will investigate quantum physics on macroscopic scales.

    Seventeen theoretical physics faculty across 12 institutions have established a new Simons Collaboration on Ultra-Quantum Matter. The team, which includes Victor Galitski, a Chesapeake Chair Professor of Theoretical Physics in the Department of Physics and Fellow of the Joint Quantum Institute, will... Continue Reading
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Recent Publications

"Theory of Bose condensation of light via laser cooling of atoms," C.H. Wang, M.J. Gullans, J.V. Porto, W.D. Phillips, J.M. Taylor, Phys. Rev. A, 031801, 99 (2019)
"Machine learning techniques for state recognition and auto-tuning in quantum dots," S.S. Kalantre, J.P. Zwolak, S. Ragole, X. Wu, N.M. Zimmerman, , J.M. Taylor, NPJ QUANTUM INFORMATION, 6, 5 (2019)
"Cryogenic trapped-ion system for large scale quantum simulation," G. Pagano, P.W. Hess, H.B. Kaplan, W.L. Tan, P. Richerme, P. Becker, A. Kyprianidis, J. Zhang, E. Birckelbaw, M.R. Hernandez, Y. Wu, C. Monroe, QUANTUM SCIENCE AND TECHNOLOGY, UNSP 014004, 4 (2019)
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