photo Dionisios Margetis

Professor

Department of Mathematics &
Institute for Physical Science and Technology,
University of Maryland
College Park, Maryland 20742, USA


Affiliations:
Center for Scientific Computation and Mathematical Modeling &
Maryland NanoCenter

Office: 2106 Mathematics Bldg. (Bldg. No: 084)
Phone : (++1-)301-405-5455
FAX : (++1-)301-314-0827
E- address : dio (followed by @math.umd.edu)



Education

  • Diploma, (summa cum laude): Electrical Eng., National Technical University of Athens, 1992
  • SM: Applied Physics, Harvard University, 1994
  • PhD: Applied Physics, Harvard University, 1999


    Awards and Honors

  • 2013-14 Research and Scholarship Award (RASA), University of Maryland
    Project title: ``From ultra-cold atoms to strange fluids, and back: Modeling and analysis of quantum fluctuations in Bose-Einstein condensation''
  • Faculty Early Career Development Award (CAREER), DMS-0847587, Div. Mathematical Sciences, National Science Foundation (NSF),
    2009-2014. Project title: ``Thermodynamic and Kinetic Approaches for Epitaxial Material Systems''
  • Dean's Award for Excellence in Teaching, College of Computer, Mathematical and Natural Sciences, University of Maryland, 2011
  • Excellence Certificate, for outstanding service in Education Outreach, Materials Research Science & Engineering Center (MRSEC), Univ. Maryland, 2008
  • Dean's Prize for Excellence in Graduate Education, School of Science, Massachusetts Institute of Technology (M.I.T.), 2006
  • Graduate Teaching Award, School of Science, M.I.T., 2004
  • Derek Bok Distinction in Undergraduate Teaching, Faculty of Arts and Sciences, Harvard University, 2001
  • Elected Full Member, Sigma Xi, The Scientific Research Society, 2000
  • 3rd Prize, Student Paper Competition, North Amer. Radio Sci. Meeting, Montreal, Canada, 1997
  • 3rd Prize, Student Paper Contest, IEEE Antennas & Propagation Soc. International Symposium, Baltimore, MD, 1996
  • C.C. Kao Fellow: top graduate student, Division of Engineering & Applied Sciences, Harvard University, 1994-'95
  • Thomaidion Award: top graduate in Electr. Eng., National Technical University of Athens (NTUA), 1993
  • M. Stai Fellow, Kapodistrian Univ. of Athens, 1987-1992, 1993-1996
  • State Scholarships Foundation Award, for distinction in entrance examinations, 1987


    Research Interests

  • Mathematical Modeling & Applied Analysis: Asymptotics for ODEs & PDEs, Integral Equations;
    Non-Equilibrium Statistical Mechanics; Analytical Aspects of Classical & Quantum Mechanics; Homogenization

  • Applications: Evolution of Materials Interfaces with Microstructures; Bose-Einstein Condensation;
    Quantum Information & Computation.
    Scattering theory: High-Energy Behavior of Scattering Cross Sections in non-Abelian Quantum Field Theories;
    Classical Wave Diffraction & Propagation


    Professor Margetis's research lies broadly in materials modeling and analysis, at the triple point of applied mathematics, theoretical physics, and materials science.
    His research is motivated by physical experiments and primarily explores the connection of
    continuum laws (e.g. PDEs) to discrete or microscopic models (e.g. ODE systems) in classical and quantum mechanics.
    Of particular interest are microscale effects that leave their signatures even at large scales.

    Topics of current, active interest (with links to publications):

  • Aspects of epitaxial growth and relaxation:
    Morphological evolution of crystal surfaces below the roughening temperature;
    free-boundary problems with microscale effects

  • Stability of nanoparticles:
    Study of shape fluctuations of nanoparticles by use of analytical tools

  • Bose-Einstein condensation of atomic gases:
    Nonlocal macroscopic laws beyond the nonlinear Schrödinger (``Gross-Pitaevskii'') equation;
    effects of atomic pair excitations

  • Decoherence in quantum computing via scattering theory

  • Electromagnetic wave theory and applications

  • Growth phenomena via a prototypical advection-diffusion problem;
    analysis of a class of first-kind Fredholm integral equations.


  • Atomistic study of behavior of materials under extreme pressure


    Students

    Graduate students:

  • University of Maryland, College Park:

    Current students:

    -- Mr. Joshua Schneider, Applied Math & Scientific Computation (AMSC) program


    Past students:

    -- Ms. Kanna Nakamura, Mathematics;
    PhD in Mathematics earned in 08/2014. Thesis in PDF:
    Evolution of faceted crystal surfaces: Modeling and analysis.
    Co-advised by Prof. A. Mellet (Math., UMd).

    --- Mr. Paul Patrone, Department of Physics;
    PhD in Physics earned in 06/2013. Thesis in PDF:
    Modeling of interfaces: Applications in polymer and surface physics.
    Co-advised by Prof. T. L. Einstein (Physics, UMd) and Dr. G. M. Gallatin (formerly at NIST).
    Positions: IMA Postdoctoral fellow (2013-15).

    --Mr. John Quah, Appl. Math. & Sci. Computation (AMSC) program:
    PhD earned in 08/2009; thesis in PDF:
    A macroscale perspective of near-equilibrium relaxation of stepped crystal surfaces.
    Positions: Faculty, Mathematics, Montgomery College, Takoma Park.

    -- Ms. Amy Finkbiner, AMSC program:
    PhD earned in 12/2007; thesis in PDF:
    Global phenomena from local rules: Peer-to-peer networks and crystal steps .
    Co-advised (for work on networks) by Prof. J. Yorke (Mathematics & Physics, & IPST).
    Positions: Research staff, Lockheed Martin, PA (2007- ).


  • M.I.T., Department of Mathematics:

    --- Mr. Pak-Wing Fok, Applied Mathematics:
    PhD earned in 06/2006; thesis in PDF:
    Simulations of axisymmetric stepped surfaces with a facet.
    Co-advised by Prof. R. R. Rosales (Appl. Math., MIT).
    Positions: von Karman instructor in Comp. & Appl. Math., CalTech.
    As of Sept. 2009: Assist. Prof., Dept. of Mathematical Sciences, Univ. Delaware.

    Other students, co-advised informally at M.I.T.:
    -- Dr. Nikos Savva, Applied Math. PhD earned in 09/2007 - now Lecturer in Applied Mathematics, Cardiff University, UK
    -- Dr. Jaehyuk Choi, Applied Math.(PhD earned in 06/2005 - currently with Goldman Sachs, NY)

    Undergraduate students:

  • University of Maryland, College Park:

    Mathematics and Materials Research Science & Engineering Center (MRSEC) :

    -- Mr. Li Peng Liang, Montgomery College; now in Univ. MD, College Park.
    Project: Modeling and analysis of crystal-step interactions.
    Summer 2009, Research Experience for Undergraduates (REU) program.

    -- Mr. Jerrod Young, Norfolk State University (major: Optical Engineering);
    now grad. student in College of Optical Sciences, Univ. Arizona.
    Project: Modeling and numerics for crystal surfaces under stress.
    Summer 2008, Research Experience for Undergraduates (REU) program.


    Synergistic activities in the University of Maryland, College Park