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Notice: All in-person JQI seminars and events are canceled until Fall 2020.

We will share updates as we receive more guidance from the University of Maryland. Please visit the University's page for more information about the COVID-19 outbreak.

Latest News and Research

New Quantum Information Speed Limits Depend on the Task at Hand
Faster algorithms and tighter theoretical limits narrow the gap between the possible and the doable.

Unlike speed limits on the highway, most speed limits in physics cannot be disobeyed. For example, no matter how little you care about getting a ticket, you can never go faster than the speed of light. Similarly stringent limits exist for information, too. The speed of light is still the ultimate speed limit, but depending on how information is stored and transmitted, there can be slower limits in practice.The story gets particularly subtle when the information is quantum. Quantum information is represented by qubits (the quantum version of ordinary bits), which can be stored in photons, atoms or any number of... Continue Reading
A figure showing a comparison between seven different quantum computers
JQI Quantum Computing Results Selected as “Top Pick” by IEEE Micro

Research by a team that includes JQI Fellow Norbert Linke, UMD physics graduate student Nhung Hong Nguyen, and visiting graduate student Cinthia Huerta Alderete has been selected as one of the 2019 Top Picks in Computer Architecture by IEEE Micro. The work, which compared different kinds of quantum computers, was a collaboration with scientists from Princeton and IBM.

IEEE Micro evaluates submissions to all computer architecture conferences that take place throughout the year and selects 12 as Top Picks for their novelty and potential for long-term impact. They invite Top Pick authors to prepare an article for the year’s special issue, which was published in May 2020.

The article contributed by Linke and...Continue Reading
Hafezi Wins 2020 Simons Foundation Investigator Award

JQI Fellow Mohammad Hafezi has been named a 2020 Simons Investigator in Physics by the New York-based Simons Foundation. Simons Investigator Awards in Mathematics, Physics, Astrophysics and Computer Science support outstanding theoretical scientists in their most productive years, when they are establishing creative new research directions, providing leadership to the field and effectively mentoring junior scientists. Continue Reading
Hafezi Named Blavatnik Award Finalist for Second Consecutive Year

For the second year in a row, JQI Fellow Mohammad Hafezi has been named a finalist of the Blavatnik National Awards for Young Scientists by the Blavatnik Family Foundation and the New York Academy of Sciences.He is among 31 of the nation’s rising stars in science who will compete for three Blavatnik National Laureate Awards in the categories of Chemistry, Physical Sciences & Engineering, and Life Sciences, and is one of 11 finalists in Physical Sciences & Engineering. Each of the three 2020 National Laureates will win $250,000—the world’s largest unrestricted prize for early-career scientists. Continue Reading
Manucharyan Receives Second Consecutive Google Faculty Research Award

JQI Fellow Vladimir Manucharyan has received a 2019 Google Faculty Research Award. It is the second consecutive year that Manucharyan, who is also an Associate Professor of Physics at UMD, has earned the honor.This year’s award will continue to support research by Manucharyan and his team into quantum computing hardware based on superconducting circuits. They are pursuing the development of special quantum bits—called fluxonium qubits—for use in a new generation of computers. Continue Reading
Quantum Gases Won’t Take the Heat

The quantum world blatantly defies intuitions that we’ve developed while living among relatively large things, like cars, pennies and dust motes. The quantum behavior of dynamical localization bucks the assumption that a cold object will always steal heat from a warmer object.Until now, dynamical localization has only been observed for single quantum objects, which has prevented it from contributing to attempts to pin down where the changeover occurs. JQI researchers and colleagues have investigated mathematical models to see if dynamical localization can still arise when many quantum particles interact. To reveal the physics, they had to craft models to account... Continue Reading
Peeking into a World of Spin-3/2 Materials

Researchers have been pushing the frontiers of the quantum world for over a century. And time after time, spin has been a rich source of new physics. Spin is essential when delving into virtually any topic governed by quantum mechanics, from superconductors to the Higgs Boson. In the past couple years, researchers have discovered materials in which electrons behave like their spin has been bumped up, from 1/2 to 3/2. JQI postdoctoral researcher Igor Boettcher explored the new behaviors these spins might produce in a recent paper featured on the cover of Physical Review Letters. Continue Reading
New Protocol Helps Classify Topological Matter

Topological materials have captured the interest of many scientists and may provide the basis for a new era in materials development. On April 10, 2020 in the journal Science Advances, physicists working with Andreas Elben, Jinlong Yu, Peter Zoller and Benoit Vermersch, including JQI Fellow Mohammad Hafezi and former JQI postdoctoral researcher Guanyu Zhu (currently a research staff member at IBM T. J. Watson Research Center), presented a new method for identifying and characterizing topological invariants on various experimental platforms, testing their protocol in a quantum simulator made of neutral atoms. Continue Reading
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Latest News and Research

  • New Quantum Information Speed Limits Depend on the Task at Hand
    Faster algorithms and tighter theoretical limits narrow the gap between the possible and the doable.

    Unlike speed limits on the highway, most speed limits in physics cannot be disobeyed. For example, no matter how little you care about getting a ticket, you can never go faster than the speed of light. Similarly stringent limits exist for information, too. The speed of light is still the ultimate speed limit, but depending on how information is stored and transmitted, there can be slower... Continue Reading
  • A figure showing a comparison between seven different quantum computers
    JQI Quantum Computing Results Selected as “Top Pick” by IEEE Micro
  • Hafezi Wins 2020 Simons Foundation Investigator Award

    JQI Fellow Mohammad Hafezi has been named a 2020 Simons Investigator in Physics by the New York-based Simons Foundation. Simons Investigator Awards in Mathematics, Physics, Astrophysics and Computer Science support... Continue Reading
  • Hafezi Named Blavatnik Award Finalist for Second Consecutive Year

    For the second year in a row, JQI Fellow Mohammad Hafezi has been named a finalist of the Blavatnik National Awards for Young Scientists by the Blavatnik Family Foundation and the New York Academy of Sciences.He is among 31 of the nation’s rising stars in science who will compete for three Blavatnik National Laureate Awards in the categories of... Continue Reading
  • Manucharyan Receives Second Consecutive Google Faculty Research Award

    JQI Fellow Vladimir Manucharyan has received a 2019 Google Faculty Research Award. It is the second consecutive year that Manucharyan, who is also an Associate Professor of Physics at UMD, has earned the honor.This year’s award will continue to support research by Manucharyan and his team into quantum computing hardware based on superconducting circuits. They are pursuing the development of... Continue Reading
  • Quantum Gases Won’t Take the Heat

    The quantum world blatantly defies intuitions that we’ve developed while living among relatively large things, like cars, pennies and dust motes. The quantum behavior of dynamical localization bucks the assumption that a cold object will always steal heat from a warmer object.Until now, dynamical localization has only been observed for single quantum objects, which has prevented it from... Continue Reading
  • Peeking into a World of Spin-3/2 Materials

    Researchers have been pushing the frontiers of the quantum world for over a century. And time after time, spin has been a rich source of new physics. Spin is essential when delving into virtually any topic governed by quantum mechanics, from superconductors to the Higgs Boson. In the past couple years, researchers have discovered materials in which electrons behave like their spin has been... Continue Reading
  • New Protocol Helps Classify Topological Matter

    Topological materials have captured the interest of many scientists and may provide the basis for a new era in materials development. On April 10, 2020 in the journal Science Advances, physicists working with Andreas Elben, Jinlong Yu, Peter Zoller and Benoit Vermersch, including JQI Fellow Mohammad Hafezi and former JQI... Continue Reading
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Recent Publications

"Competition between factors determining bright versus dark atomic states within a laser mode," B. Hemingway, T.G. Akin, S. Peil, , Phys. Rev. A, 053410, 101 (2020)
"d-wave superconductivity and Bogoliubov-Fermi surfaces in Rarita-Schwinger-Weyl semimetals," J.M. Link, I. Boettcher, I.F. Herbut, Phys. Rev. B, 184503, 101 (2020)
"Drag viscosity of metals and its connection to Coulomb drag," Y. Liao, V. Galitski, Phys. Rev. B, 195106, 101 (2020)
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