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New and Exciting Physics
 

Brian L DeMarco

Brian L DeMarco's profile

Brian L DeMarco
Brian L DeMarco

Associate Professor

Professor Brian DeMarco received his B.A. in physics, with a mathematics minor, from the State University of New York at Geneseo in 1996, graduating summa cum laude. As an undergraduate researcher, he worked on calibrating and developing neutron detectors for laser driven inertial confinement fusion experiments.

He earned a Ph.D. in physics from the University of Colorado at Boulder (2001), where he extended magnetic trapping and evaporative cooling techniques to create the first quantum degenerate Fermi gas of atoms. This achievement merited Science magazine's imprimatur as one of the top ten scientific discoveries of 1999 and earned DeMarco the first JILA Scientific Achievement Award. In 2002, he received the American Physical Society's Division of Atomic, Molecular, and Optical Physics Thesis Award.

From 2001-2003, he was a National Research Council postdoctoral research fellow, working with David Wineland at the National Institute of Standards and Technology (Boulder) on quantum computing experiments with trapped atomic ions. DeMarco's work with the Ion Storage Group focused on developing improved quantum logic elements and "scaling-up" the complexity of quantum information processing tasks with trapped ions.

Professor DeMarco joined the Department of Physics at Illinois in August 2003. In October 2005, he was among 18 young physics researchers selected as finalists in a global competition to participate in Amazing Light: Visions for Discovery, an international symposium focused on exploring and advancing innovative research in physics and astronomy inspired by, and honoring the leadership and vision of, Charles Townes, winner of the 1964 Nobel Prize in physics. The symposium brought together renowned scholars and researchers, including 20 Nobel laureates, to explore the extraordinary challenges of 21st Century physics and cosmology. DeMarco won first place in the Quantum Physics category for his research aimed at realizing quantum simulation using atoms trapped in an optical lattice.

Prof. DeMarco is the recipient of an NSF CAREER award, ONR Young Investigator award, and a Sloan Foundation Fellowship.

Prof. DeMarco currently serves on the DAMOP Executive Committee, the review panel for NRC postdoctoral fellowships, and the National Academy of Science's Committee on Atomic, Molecular, and Optical Physics (CAMOS).

Description of Current Research

Prof. DeMarco's research program at the University of Illinois focuses on solving outstanding problems in condensed matter physics using ultra-cold atoms trapped in an optical lattice. This approach, of using one quantum system to emaluate another, is known as quantum simulation and was first proposed as a potentially revolutionary technique by Richard Feynmann. Current research problems being tackled by his team include the properties of the disordered Bose-Hubbard model, thermometry in strongly correlated lattice systems, and thermopower in the Hubbard model. DeMarco's group was the first identify the cross-over between quantum tunneling and thermal activation of phase slips in an optical lattice (published in Nature) and the first to realize 3D Anderson localization of matter (published in Science). His group was also the first to trap atoms in a disordered optical lattice in a regime described by the disordered Bose-Hubbard model.

DeMarco's research has been highlighted on the NSF LiveScience and Discoveries websites.  One of his students also has a blog with Discover magazine.

For more information

  • DeMarco research group

Honors and awards

  • Sloan Research Fellowship, 2006
  • UIUC Center for Advanced Study, Beckman Fellow, 2006-2007
  • National Science Foundation CAREER Award, 2004
  • Office of Naval Research Outstanding Young Investigator Award, 2004
  • JILA Scientific Achievement Award, 2002
  • Science Magazine listed the article Onset of Fermi degeneracy in a trapped atomic gas among the Top Ten Scientific Breakthroughs of 1999

Semesters Ranked Excellent Teacher by Students

  • Spring 2011: PHYS 514
  • Spring 2010: PHYS 485
  • Fall 2008: PHYS 485
  • Fall 2006: PHYS 140
  • Spring 2005: PHYS 598
  • Fall 2004: PHYS 102

Selected Publications

  • S.S. Natu, D.C. McKay, B. DeMarco, and E.J. Meuller, Evolution of a condensate fraction during rapid lattice ramps, Physical Review A 85, 061601 (2012).
  • S. S. Kondov, W. R. McGehee, J.J. Zirbel, and B. DeMarco, Three-Dimensional Anderson Localization of Ultracold Matter, Science 334, 66 (2011).
  • D. Chen, M. White, C. Borries, and B. DeMarco, Quantum Quench of an Atomic Mott Insulator, Physical Review Letters 106, 235304 (2011).
  • D. McKay and B. DeMarco, Cooling in strongly correlated optical lattices: prospects and challenges, Reports on Progress in Physics 74, 0544401 (2011)
  • B. DeMarco, An atomic view of quantum phase transitions, Science 329, 523 (2010).
  • M. Pasienski, D. McKay, M. White and B. DeMarco, A disordered insulator in an optical lattice, Nature Physics doi:10.1038/nphys1726 (2010).
  • D. McKay and B. DeMarco, Thermometry with Spin-Dependent Lattices, New J. of Phys. 12, 055013 (2010).
  • D. McKay, M. White, and B. DeMarco, Lattice Thermodynamics for Ultra-Cold Atoms, Phys. Rev. A, 79 063605 (2009).
  • M. White, M. Pasienski, D. McKay, S. Zhou, D. Ceperley, and B. DeMarco, Strongly interacting bosons in a disordered optical lattice, Phys. Rev. Lett. 102, 055301 (2009).
  • M. Pasienski and B. DeMarco, A high-accuracy algorithm for designing arbitrary holographic atom traps, Opt. Express 16, 2176 (2008).
  • D. McKay, M. White, M. Pasienski, and B. DeMarco, Phase-slip induced dissipation in an atomic Bose-Hubbard system, Nature 453, 76 (2008).
  • M. White, H. Gao, M. Pasienski, B. DeMarco, Bose-Einstein condensates in RF-dressed adiabatic potentials, Phys. Rev. A 74, 023616-1-4 (2006).
  • D. Leibfried, et al. Experimental demonstration of a geometric phase gate. Nature 422, 412 (2003).
  • B. DeMarco and D. S. Jin. Onset of Fermi degeneracy in a trapped atomic gas. Science 285, 1703 (1999).

Contact Information

Office
329 Loomis Laboratory

Phone
217.244.9848

Fax
217.244.7559

Email
bdemarco@illinois.edu

Areas of Research

  • AMO/Quantum Physics

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