Release of exciting sodium

We are happy to present exciting sodium, released in January 2026!

           Explore and download exciting sodium, read instructions. Here are some of the latest features:

• General:
  - Executable tutorials available as Jupyter notebooks
  - New build system (CMake)
  - Support for new compilers: Cray, AMD Flang new, Intel LLVM
  - Improved excitingscripts

• Ground state:
  - Improved treatment of symmetry using lattice harmonics and real-valued Hamiltonian matrices
  - Meta-GGA xc functionals
  - Support for libXC version 7.0.0

• GW:
  - New HPC-friendly task-based GW with increased parallelism options
  - GW execution offloaded to GPUs
  - Exploiting crystal symmetry
  - Improved degeneracy treatment
  - Correct treatment of  anisotropic q=0 singularity for bulk and 2D materials

• Electron-phonon interaction:
  - Electron-phonon matrix elements, including Frölich term for polar 3D materials
  - Temperature-dependent properties: electron self-energy, spectral functions, band gaps, band structures

• RT-TDDFT:
  - Second variation for time propagation
  - Restricted time evolution for selected states
  - Coupling to external fields using Berry phase approach
  - Options for restart capabilities, more verbose outputs, and  HDF5 I/O

• BSE:
  - Second-variation local orbitals for spin-orbit treatment
  - Constrained BSE using non-equilibrium occupations generated by TDDFT
  - Interpolation of dielectric matrix for BSE on top of KS

• Bug fixes:
  - Fourier interpolation in GW 
  - Proper usage of xc functionals with SIRIUS

All previous releases of exciting can be found here.

January 2026

(The exciting team)