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interface of atomic, molecular, optical (AMO) physics, quantum information, and condensed matter (as well as many-body) physics


We are a theoretical research group working at the interface of quantum optics, quantum information science, and condensed matter physics.

Postdoc and graduate student positions available: email av[group leader's last name]

Group Lead

Alexey Gorshkov profile photo

Alexey Gorshkov

Adjunct Associate Professor


  • Quantum magnetism with alkaline-earth atoms image
  • Alt text
  • Topological matter in AMO systems image
  • Strongly interacting photons hero image


  • A man stands on stage in front of a whiteboard covered with equations and diagrams.

    Recent Alumnus Embraced Community and Service at UMD

    February 8, 2023

  • quantum spin ice

    Quantum spin ice in three-dimensional Rydberg atom arrays

    January 16, 2023


  • graph state

    Sharp complexity phase transitions generated by entanglement

    January 11, 2023


  • Profile photo of Alexey Gorshkov

    Gorshkov Elected Optica Fellow

    November 10, 2022

    JQI Fellow Alexey Gorshkov was named a 2023 fellow of Optica, the organization formerly known as the Optical Society of America.

  • a 2d array of atoms

    Quantum Non-Demolition Photon Counting in a 2d Rydberg Atom Array

    November 3, 2022


  • a schematic image of fermionic codes

    Error-correcting codes for fermionic quantum simulation

    November 3, 2022


  • an artistic render of a trapped ion spin chain

    Continuous Symmetry Breaking in a Trapped-Ion Spin Chain

    November 3, 2022


  • a schematic image showing the interaction between light and matter

    Ultrastrong light-matter interaction in a photonic crystal

    September 30, 2022


  • Page curves and typical entanglement in linear optics

    September 15, 2022


  • Quantum Many-Body Scars from Einstein-Podolsky-Rosen States in Bilayer Systems

    September 14, 2022


  • Disordered Lieb-Robinson bounds in one dimension

    August 11, 2022


  • Digital quantum simulation of Floquet symmetry-protected topological phases

    July 27, 2022

    Nature 607, 468 (2022)

  • Advantages and limitations of quantum routing

    June 6, 2022


  • Simulation Complexity of Many-Body Localized Systems

    May 28, 2022


  • Candidate for a self-correcting quantum memory in two dimensions

    May 23, 2022


  • Elizabeth Bennewitz in a black top stands in front of red and clear windows.

    JQI Graduate Student Receives DOE Fellowship

    May 18, 2022

    Elizabeth Bennewitz, a first-year physics graduate student at JQI and the Joint Center for Quantum Information and Computer Science (QuICS), has received a Department of Energy Computational Science Graduate Fellowship. Bennewitz is one of 33 recipients in 2022—the largest number of students this program has ever selected in a year.

  • Quantum Routing with Teleportation

    April 18, 2022


  • Bringewatt in a white shirt and blazer stands in front of a projector screen showing a slide that says "Entangled Quantum Sensors for High Precision Measurements" and shows basic graphics.

    JQI Grad Student Wins UMD Three-Minute Thesis Competition

    April 15, 2022

    JQI graduate student Jacob Bringewatt is one of four post-candidacy student winners in the campus-wide portion of the UMD Three-Minute Thesis (3MT) competition. Each of these four winners received $1000. Each will be further evaluated by the UMD Graduate School, and one will be selected to represent the university in an international 3MT competition.

  • An asymmetric grey shape has a black curved path wandering through the center of it. Two sections of the path have arrows pointing to peaks that have a color gradient from red at the base to green at the top of the peaks.

    New Perspective Blends Quantum and Classical to Understand Quantum Rates of Change

    March 7, 2022

    There is nothing permanent except change. This is perhaps never truer than in the fickle and fluctuating world of quantum mechanics. The quantum world is in constant flux. The properties of quantum particles flit between discrete, quantized states without any possibility of ever being found in an intermediate state. How quantum states change defies normal intuition and remains the topic of active debate—for both scientists and philosophers.

  • Elizabeth Bennewitz in a black top stands in front of red and clear windows.

    JQI Graduate Student Is Finalist for Hertz Fellowship

    February 18, 2022

    Elizabeth Bennewitz, a first-year physics graduate student at JQI and QuICS, has been named a finalist for a 2022 Hertz Fellowship. Out of more than 650 applicants, Bennewitz is one of 45 finalists with a chance of receiving up to $250,000 in support from the Fannie and John Hertz Foundation. The fellowships provide up to five years of funding for recipients pursuing a Ph.D.

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