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Welcome to the ALPS 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.


ALPS school on numerical methods to be held in Bariloche, Argentina, Dec. 2-5 2011 and related conferences:

ANDES/ALPS School on Numerical Methods for Many-Body Theories Dec. 2-5, 2011, Bariloche, Argentina and


Check back regularly to read the latest news and information on the people contributing to the project.

User Forum

Go here to discuss the ALPS libraries and applications with the community of developers. This is the place to address any questions you encounter while using any codes of the ALPS project.

Papers and Talks

Go here to find papers on the ALPS project, talks from the first user workshop and a list of papers citing the ALPS project.

Download and Installation

Useful information how to install the alps libraries and applications on workstations and clusters.


How to run ALPS applications

Tutorials on the ALPS applications

Tutorials on using ALPS libraries for your applications


Reference documentation

The main new feature of the new ALPS 2.0 release include:

  • New build system using CMake simplifies builds and allows builds on Windows, the Cray XT5 and other platforms that were not supported before
  • Binary installer packages
  • Binary file format HDF5 uses less space and much faster I/O
  • Python-based evaluation and plotting tools are simpler, much more flexible and powerful
  • Integration with VisTrails workflow provenance system
  • New applications: DMFT and TEBD
  • Updated applications
  • New and more tutorials

More features, new applications, and scalability to petaflop-class machines are planned for ALPS 2.1

See ALPS_1.3 to access the previous version of ALPS.

To contribute to this Wiki you will need to have an account allowing you to edit the content of the Wiki pages.

(c) 2005-2011 The ALPS collaboration