Northeastern Physics
Department of Physics
Contact | CV | Research | Publications | Teaching | Presentations | Software | Links

Adrian E. Feiguin
Assistant Professor

Dept. of Physics
Room 119
Northeastern University
Boston, MA 02115, USA

ph: (617) 373-2925
fax: (617) 373-2943
a.feiguin@neu.edu


News



Read our article:
Coherent Dynamics of a Single Spin Interacting with an Adjustable Spin Bath
R. Hanson, V. V. Dobrovitski, A. E. Feiguin, O. Gywat, and D. D. Awschalom
Science 18 April 2008: 352-355.
Simulations successfully show how the spin of a nitrogen vacancy in diamond is coupled to those of surrounding nitrogen impurities and how coherence between them is lost.
Abstract   Full Text   PDF   Supporting Online Material  

In the Press

  • "Diamond 'Spin-Bath' Gives Crystal View of Quantum Ripples". Scientific American
  • "Physicists learn how quantum mechanical states break down". Science Daily
  • "Physicists discover how fundamental particles lose track of quantum mechanical properties". Nanothechwire.com
  • "Physicists discover how fundamental particles lose track of quantum mechanical properties". PhysOrg news
  • "Physicists Show How Fundamental Particles Lose Quantum Mechanical Properties Through Environmental Interactions". AZoNano news
  • "The equivalent of a new quantum liquid?". PhysOrg news

Research Interests

Strongly correlated problems in Condensed Matter, mainly computationally oriented. More specifically:
  • Ultracold atomic gases in optical lattices.
  • Transport and time-dependent phenomena.
  • Spintronics. (Coherent manipulation of N-V centers in diamond)
  • Quantum Magnetism in low dimensions.
  • Exotic quantum phases and topological order, including fractional quantum Hall states.
  • High Temperature Superconductors.

Publications

Presentations

  • On adaptive time-dependent DMRG based on Runge-Kutta methods (Powerpoint) .
    2005 APS March Meeting, Los Angeles.

Software

EDUCATIONAL/SCIENTIFIC SOFTWARE

ALPS DMRG Project
The ALPS project (Algorithms and Libraries for Physics Simulations) is an open source effort aiming at providing high-end simulation codes for strongly correlated quantum mechanical systems as well as C++ libraries for simplifying the development of such code. ALPS strives to increase software reuse in the physics community.

SciGraphica
An application for scientific graphics and data analysis. It features spreadsheets and interactive plots in a user-friendly graphic interface. It has been programmed from scratch using C and the GTK and GtkExtra toolkits. The spreadsheets evaluate expressions in Python, and the plots generate publication quality PostScript output. It has a native file format in XML and it is enhanced under GNOME. The project is open-source and continuously augmented in functionality by many users throughout the world. It is becoming very popular in the scientific community, and it is included in most of the Linux/BSD distributions. Moreover, SciGraphica is being used at places like Siemens, and Nasa (see for instance, the Shuttle Radar Topography Mission at http://www.jpl.nasa.gov/srtm/), and for ocean modeling (http://www.mi.uib.no/BOM/)


GtkExtra
A library of widgets for the design of Graphic User Interfaces (GUI). It is cross platform and can be compiled under most flavors of Unix and and Windows. The library is open-source and it is very popular because of its functionality and portability.

Courses

Spring 2004: Computational Physics - P131
Fall 2009: Modern Computational Methods in Solids - Phys5870
Spring 2010: Phys1220: Engineering Physics II
Fall 2010: Phys1220: Engineering Physics II
Spring 2011: P4840: Mathematical and Computational Methods in Physics
Fall 2011: Phys1220: Engineering Physics II
Spring 2012: Modern Computational Methods in Solids - Phys5870
Spring 2013: Classical Dynamics - Phys3601

Links

Programs and libraries