1.2. What’s new in Kwant

• What’s new in Kwant 1.4
  • Summary: release highlights
  • Automatic Peierls phase calculation
  • Conductivity calculations using kwant.kpm.conductivity
  • Integration with Qsymm library
  • System parameter substitution
  • System parameters can now be inspected
  • Passing system arguments via args is deprecated in favor of params
  • Interpolated density plots
  • Configurable maximum velocity in stream plots
  • Improved heuristic for colorscale limits in kwant.plotter.map
  • Sites from different families are plotted in different colors by default
  • kwant.physics.Bands can optionally return eigenvectors and velocities
  • Finalized Builders keep track of which sites were added when attaching leads
  • kwant.continuum.discretize can be used with rectangular lattices
  • Restrictions on value functions when named parameters are given
  • Installation on Microsoft Windows is available via Conda
  • Minimum required versions for some dependencies have increased
  • Changes in Kwant 1.4.1
  • Changes in Kwant 1.4.2
  • Changes in Kwant 1.4.3
• What’s new in Kwant 1.3
  • Using high-symmetry builders as models
  • Tools for continuum Hamiltonians
  • Calculating charges and currents using the operator module
  • Plotting of currents
  • Scattering states with discrete symmetries and conservation laws
  • Named parameters for value functions
  • Reference implementation of the kernel polynomial method
  • Finalizing builders with multiple translational symmetries
  • Consistent ordering of sites in finalized builders
  • attach_lead() can now handle leads with greater than nearest-neighbor hoppings
  • Pickling support
  • Improved build configuration
  • Builder.neighbors() respects symmetries
  • API change that affects low-level systems
• What’s new in Kwant 1.2
  • How to upgrade Kwant scripts to Python 3
• What’s new in Kwant 1.1
  • Harmonize Bands with modes
  • New option add_cells of attach_lead
  • New method conductance_matrix
  • Deduction of transmission probabilities
  • Clearer error messages
  • New option pos_transform of kwant.plotter.map
• What’s new in Kwant 1.0
  • Lattice and shape improvements
  • possible_hoppings replaced by HoppingKind
  • Some renames
  • Band structure plots
  • Immutable site families
  • Parameters to Hamiltonian
  • Calculation of modes separated from solving
  • Change of the modes and lead_info format
  • New module for random-access random numbers
  • New module for random matrix theory Hamiltonians
  • Improved plotting functionality
• What’s new in Kwant 0.2
  • Improved performance
  • New MUMPS-based solver
  • New tutorial dealing with superconductivity
  • New plotter module
  • TranslationalSymmetry is used differently
  • Band structure functionality has been moved
  • Calculation of the local density of states
  • Calculation of wave functions in the scattering region
  • Return value of sparse solver