RSS icon
Twitter icon
Facebook icon
Vimeo icon
YouTube icon

Latest News and Research

The limits of computation
JQI Podcast Episode 13
  • May 18, 2017
  • |

Modern computers, which dwarf their forebears in speed and efficiency, still can't conquer some of the hardest computational problems. Making them even faster probably won't change that.

Computer scientists working in the field of computational complexity theory explore the ultimate limits of computers, cataloguing and classifying a universe of computational problems. For decades, they’ve been stuck on a particular nagging question, which boils down to this: What’s the relationship between solving a problem and checking your work?

Chris Cesare teams up with Emily Edwards and QuICS postdoctoral researcher Bill Fefferman to explain what this question entails and how researchers are tackling it with tools...Continue Reading

Tiny tug unleashes cryogenic currents

Researchers have found that a small stretch is enough to unleash the exotic electrical properties of a recently discovered topological insulator, unshackling a behavior previously locked away at cryogenic temperatures.The compound, called samarium hexaboride, has been studied for decades. But recently it has enjoyed a surge of renewed interest as scientists first predicted and then discovered that it was a new type of topological insulator—a material that banishes electrical currents from its interior and forces them to travel along its periphery. That behavior only emerges at around 4 degrees above absolute zero, though, thwarting potential applications.Now, experimentalists at the University of California, Irvine (UCI), working...Continue Reading

Recent JQI grad receives APS policy fellowship

Lauren Aycock, a recent JQI graduate researcher, has been awarded a Congressional Science Fellowship from the American Physical Society.The fellowship, which lasts for one year, aims to provide members of Congress with the scientific and technical expertise of trained scientists. In turn, fellows like Aycock get to learn first-hand about public policy and communicate with Congress on behalf of the scientific community. After an orientation sponsored by the American Association for the Advancement of Science, she will begin working either in a congressional office or on a committee.Continue Reading

Trapped ions and superconductors face off in quantum benchmark

The race to build larger and larger quantum computers is heating up, with several technologies competing for a role in future devices. Each potential platform has strengths and weaknesses, but little has been done to directly compare the performance of early prototypes. Now, researchers at the JQI have performed a first-of-its-kind benchmark test of two small quantum computers built from different technologies.The team, working with JQI Fellow Christopher Monroe and led by postdoctoral researcher Norbert Linke, sized up their own small-scale quantum computer against a device built by IBM. Both machines use five qubits—the fundamental units of information in a quantum computer—and both...Continue Reading

JQI undergraduate researcher Eliot Fenton receives Goldwater Scholarship

Three University of Maryland students have been awarded scholarships by the Barry M. Goldwater Scholarship and Excellence in Education Foundation, which encourages students to pursue advanced study and careers in the sciences, engineering and mathematics. The Goldwater Foundation also recognized a fourth UMD student with an Honorable Mention.Eliot Fenton, along with Christopher Bambic and Prayaag Venkat were among the 240 Barry Goldwater Scholars selected from 1,286 students nominated nationally this year. Natalie Livingston was recognized with an Honorable Mention. The four students, all currently UMD Juniors, plan to pursue doctoral degrees in their areas of study and to become university professors or researchers at...Continue Reading

JQI Podcast Episode 12
HAWC and the high-energy gamma rays
  • April 4, 2017
  • |

In our own galaxy and beyond, violent collisions fling a never-ending stream of stuff at the earth, and astrophysicists are eager to learn more about the processes that produce this cosmic barrage.

Researchers from around the world have teamed up to build the High-Altitude Water Cherenkov (HAWC) gammy-ray observatory, an array of hundreds of huge water tanks on a mountain in Mexico. HAWC helps astrophysicists spot active cosmic neighborhoods by capturing the shower of particles created when high-energy packets of light smash into the earth’s atmosphere.

Jordan Goodman, HAWC’s lead investigator, and Dan Fiorino, a postdoctoral researcher at UMD, tell Chris Cesare about the details of the HAWC experiment and how it promises to fill some gaps in our understanding of the universe. To learn more about HAWC, please visit www.hawc-...Continue Reading

Phillips named corresponding member of Mexican Academy of Sciences

JQI Fellow, Nobel laureate and Distinguished University Professor William Phillips has been inducted into the Mexican Academy of Sciences (la Academia Mexicana de Ciencias) as a corresponding member. The honor will be marked by an evening event held in Mexico City on March 23.The event includes a talk by Phillips, titled "Time, Einstein and the coolest stuff in the universe," as well as a discussion between Phillips, Mexican Academy of Sciences president Jaime Urrutia Fucugauchi, and JQI Fellow and physics professor Luis Orozco, who nominated Phillips for membership. The entire program will be broadcast live beginning at 6 p.m. EDT.Continue Reading

Wellstood named new UMD Co-Director of JQI

Physics professor and JQI Fellow Fred Wellstood has been appointed the newest UMD Co-Director of JQI. He assumed the role on March 1."Fred has played a major role in the JQI since its founding," says Gretchen Campbell, the current NIST Co-Director of JQI. "Most recently, his tireless efforts helped to design and ultimately build the new Physical Sciences Center at Maryland that many JQI labs now call home. I look forward to working with him to carefully steward JQI’s future."Wellstood came to UMD in 1991 as an Assistant Professor of Physics after earning his Ph.D. from the University of California, Berkeley. Upon arriving, he joined the Center for Superconductivity Research, now known as the Center for Nanophysics and Advanced Materials, and began...Continue Reading

Latest News and Research

  • The limits of computation
    JQI Podcast Episode 13
    • May 18, 2017
    • |
  • Tiny tug unleashes cryogenic currents

    Researchers have found that a small stretch is enough to unleash the exotic electrical properties of a recently discovered topological insulator, unshackling a behavior previously locked away at cryogenic temperatures.The compound, called samarium hexaboride, has been studied for decades. But recently it has enjoyed a surge of renewed interest as scientists ... Continue Reading

  • Recent JQI grad receives APS policy fellowship

    Lauren Aycock, a recent JQI graduate researcher, has been awarded a Congressional Science Fellowship from the American Physical Society.The fellowship, which lasts for one year, aims to provide members of Congress with the scientific and technical expertise of trained scientists. In turn, fellows like Aycock get to learn first-hand about public policy and communicate with Congress on behalf of... Continue Reading

  • Trapped ions and superconductors face off in quantum benchmark

    The race to build larger and larger quantum computers is heating up, with several technologies competing for a role in future devices. Each potential platform has strengths and weaknesses, but little has been done to directly compare the performance of early prototypes. Now, researchers at the JQI have performed a first-of-its-kind benchmark test of two small quantum computers built from... Continue Reading

  • JQI undergraduate researcher Eliot Fenton receives Goldwater Scholarship

    Three University of Maryland students have been awarded scholarships by the Barry M. Goldwater Scholarship and Excellence in Education Foundation, which encourages students to pursue advanced study and careers in the sciences, engineering and mathematics. The Goldwater Foundation also recognized a fourth UMD student with an Honorable... Continue Reading

  • JQI Podcast Episode 12
    HAWC and the high-energy gamma rays
    • April 4, 2017
    • |
  • Phillips named corresponding member of Mexican Academy of Sciences

    JQI Fellow, Nobel laureate and Distinguished University Professor William Phillips has been inducted into the Mexican Academy of Sciences (la Academia Mexicana de Ciencias) as a corresponding member. The honor will be marked by an evening event held in Mexico City on March 23.The event includes a talk by Phillips, titled "Time, Einstein and the coolest stuff in the universe," as well... Continue Reading

  • Wellstood named new UMD Co-Director of JQI

    Physics professor and JQI Fellow Fred Wellstood has been appointed the newest UMD Co-Director of JQI. He assumed the role on March 1."Fred has played a major role in the JQI since its founding," says Gretchen Campbell, the current NIST Co-Director of JQI. "Most recently, his tireless efforts helped to design and ultimately build the new Physical Sciences Center at Maryland that many JQI labs... Continue Reading

People Profiles

Upcoming Events

May 30, 2017
Department of Environmental Safety |
June 7, 2017
Nicole Yunger Halpern | Institute for Quantum Information and Matter, California Institute of Technology

Twitter Updates

Subscribe to A Quantum Bit 

Quantum physics began with revolutionary discoveries in the early twentieth century and continues to be central in today’s physics research. Learn about quantum physics, bit by bit. From definitions to the latest research, this is your portal. Subscribe to receive regular emails from the quantum world. Previous Issues...

Sign Up Now

Sign up to receive A Quantum Bit in your email!

 Have an idea for A Quantum Bit? Submit your suggestions to jqi-comm@umd.edu