Functionalities
Extension to nuclear matter in neutron stars
The W-SLDA Toolkit has been expanded to encompass nuclear systems, now available as the W-BSk Toolkit.
Unified solvers for static and time-dependent problems
W-SLDA Toolkit provides a unified framework for solving:
- static problems (st-wslda solvers)
- time-dependent problems (td-wslda solvers)
Dimensionalities of problems: 3D, 2D and 1D
W-SLDA allows to solve problems
- in 3D without any symmetry restrictions: Ψ=φ(x,y,z)
- in 2D with translational invariance along z direction: Ψ=φ(x,y)exp(ikzz)
- in 1D with translational invariance along y and z directions:: Ψ=φ(x)exp(ikyy)exp(ikzz)
Functionals for studies of BCS and unitary regimes
W-SLDA allows investigating properties of fermionic in the whole spectrum of interaction strengths:
- Weakly interacting regime (BCS regime) by means of Bogoliubov-de Gennes equations (BdG).
- The strongly interacting regime, (UFG limit), by means of Superfluid Local Density Approximation (SLDA).
- An arbitrary value of askF from BCS to UFG, by means of Extended Superfluid Local Density Approximation (SLDAE)
Speed-up calculations by exploiting High Performance Computing
W-SLDA is designed to exploit capabilities of leadership-class supercomputers.
Depending on the type of the code the toolkit can be executed on:
- static codes: standard CPU machines, GPU accelerated machines,
- time-dependent codes: only GPU accelerated machines.
To learn more about a computer that you need for calculations see Requirements
Integration with VisIt: visualization, animation and analysis tool
W-SLDA is integrated with the open-source VisIt tool. It allows for:
- visualizing 3D, 2D and 1D results,
- data processing,
- creating animations for time-dependent simulations.
Solvers for spin symmetric and spin imbalanced systems
W-SLDA Toolkit can solve problems
- with imposed spin symmetry (Na=Nb)
- with broken spin symmetry (Na≠Nb) where exotic superfluid phases may arise (like LOFF state)
Zero temperature and finite temperature
W-SLDA allows for studies of systems in zero temperature as well as in finite temperatures.
Template based model of programming
W-SLDA exploits template based model of programming.
User starts with template of a project where items like external potential, external pairing potential, external velocity must be provided in C language.
Solvers for mass imbalanced Fermi-Fermi mixtures
W-SLDA Toolkit can solver problems for mass imbalanced systems (functionality available only in static codes). This functionality allows for exploration of phase diagram of Fermi-Fermi mixtures.
Extensions supporting computation and data analysis process
W-SLDA Toolkit provides flexible way of constructing custom codes that support computation and data analysis process.
