Package: python3-chemps2 (1.8.12-3.1 and others)

[ Source: chemps2  ]

Python 3 interface for libchemps2-3t64

chemps2 is a scientific library which contains a spin-adapted implementation of the density matrix renormalization group (DMRG) for ab initio quantum chemistry. This wavefunction method allows one to obtain numerical accuracy in active spaces beyond the capabilities of full configuration interaction (FCI), and allows one to extract the 2-, 3-, and 4-particle reduced density matrices (2-, 3- and 4-RDM) of the active space.

For general active spaces up to 40 electrons in 40 orbitals can be handled with DMRG, and for one-dimensional active spaces up to 100 electrons in 100 orbitals. The 2-RDM of these active spaces can also be easily extracted, while the 3- and 4-RDM are limited to about 28 orbitals.

When the active space size becomes prohibitively expensive for FCI, DMRG can be used to replace the FCI solver in the complete active space self consistent field (CASSCF) method and the corresponding complete active space second order perturbation theory (CASPT2). The corresponding methods are called DMRG-SCF and DMRG-CASPT2, respectively. For DMRG-SCF the active space 2-RDM is required, and for DMRG-CASPT2 the active space 4-RDM.

This package installs the library for Python 3.

Other Packages Related to python3-chemps2

• dep: libc6 (>= 2.4)

  GNU C Library: Shared libraries
  also a virtual package provided by libc6-udeb

• dep: libchemps2-3t64 (= 1.8.12-3.1+b3)

  Spin-adapted DMRG for ab initio quantum chemistry

• dep: libgcc-s1 (>= 3.0)

  GCC support library

• dep: libstdc++6 (>= 5.2)

  GNU Standard C++ Library v3

• dep: python3 (<< 3.13)

  interactive high-level object-oriented language (default python3 version)

  dep: python3 (>= 3.12~)

• dep: python3-numpy (>= 1:1.25.0)

  Fast array facility to the Python language (Python 3)

• dep: python3-numpy-abi9

  virtual package provided by python3-numpy

• sug: chemps2-doc

  Documentation of the libchemps2-3t64 package

Download python3-chemps2

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Architecture	Version	Package Size	Installed Size	Files
mips64el	1.8.12-3.1+b3	64.4 kB	365.0 kB	[list of files]