v0.14.0

TensorKit v0.14.0

Diff since v0.13.2

• Various index functionalities have been added: flip can be used to change arrows, insertleftunit, insertrightunit and removeunit will manipulate trivial indices.

Breaking changes

• The DiagonalTensorMap is now the default output type for the diagonal singular and eigenvalue tensors returned by tsvd, eig and related functions
• There is a small change in the truncation of singular values for non-abelian symmetries, where now it is guaranteed that smaller singular values are removed first

Merged pull requests:

• Add and test rrules for real and imag (#183) (@lkdvos)
• Constructor fixes (#185) (@Jutho)
• insertleftunit, insertrightunit and removeunit (#187) (@lkdvos)
• change truncation strategy to always select smallest schmidt coefficient (#188) (@Jutho)
• add 🐬 functionality (#189) (@Jutho)
• use diagonaltensormap (#190) (@Jutho)
• some cleanup for v0.14 (#191) (@Jutho)

Closed issues:

• svdvals and eigvals (#34)
• How to apply gradient of gradient? (#175)
• convert to floating point in matrix factorisations (#181)
• Fail to extract block by specifying sector of each index for (N,0) or (0,N) tensors (#182)
• Why using weighted singular values for the truncation? (#184)
• Partial convert(Array, TensorMap) (#186)