v0.1.40

ITensors v0.1.40

Diff since v0.1.39

Merged pull requests:

• Remove eigen QN fix code (#587) (@emstoudenmire)
• More general polar decomposition (#588) (@mtfishman)

v0.1.39

ITensors v0.1.39

Diff since v0.1.38

Merged pull requests:

• Add Pauli X,Y,Z to S=1/2 site type (#576) (@emstoudenmire)
• DMRG Improvements (#577) (@emstoudenmire)
• Bump StaticArrays version to v1.0 (#578) (@mtfishman)
• Fix orthogonalize when there are missing MPS link indices (#579) (@mtfishman)
• Make MPO * MPO contraction more robust for MPOs with multiple site indices per tensor (#585) (@mtfishman)

v0.1.38

ITensors v0.1.38

Diff since v0.1.37

Closed issues:

• MPO-MPO multiplication for chain length N=1,2 not working (#544)
• Scalar ITensor for QN or BlockSparse Case (#564)

Merged pull requests:

• Fix bug in BlockSparse-DiagBlockSparse contraction (#567) (@mtfishman)
• Add tests for printing QN diag ITensor (#568) (@mtfishman)
• Add generic support for scalar ITensor contraction (#569) (@mtfishman)
• Fix MPOMPS, MPOMPO for system sizes 1 and 2 (#572) (@mtfishman)
• Add support for inner(::MPS, ::MPO, ::MPS) with multiple siteinds per tensor (#573) (@mtfishman)
• New MPS/MPO index manipulation interface (#575) (@mtfishman)

v0.1.37

ITensors v0.1.37

Diff since v0.1.36

Merged pull requests:

• Add tests for threaded contraction with no output blocks (#565) (@mtfishman)

v0.1.36

ITensors v0.1.36

Diff since v0.1.35

Merged pull requests:

• Threaded blocksparse (#561) (@mtfishman)
• Make dmrg set ortho center to 1 before starting (#562) (@emstoudenmire)

v0.1.35

ITensors v0.1.35

Diff since v0.1.34

Closed issues:

• Should we define iterate for TagSet? (#542)
• AutoMPO slower than expected (#555)

Merged pull requests:

• Implement iterate for TagSet (#553) (@tomohiro-soejima)
• Add check for Index arrows for map! (includes sum and difference etc) (#554) (@emstoudenmire)
• Optimize AutoMPO (#556) (@mtfishman)
• Add checks for common site indices in DMRG, dot, and inner (#557) (@mtfishman)
• Fix and Improve DMRGObserver Constructor (#558) (@emstoudenmire)
• Update HDF5 to versions 0.14, 0.15 (#559) (@emstoudenmire)

v0.1.34

ITensors v0.1.34

Diff since v0.1.33

Closed issues:

• Use Symbol instead of SmallString in OpName (#550)

Merged pull requests:

• Make OpName use Symbol instead of SmallString for longer operator names (#551) (@mtfishman)

v0.1.33

ITensors v0.1.33

Diff since v0.1.32

Merged pull requests:

• Fix bug in inner(::MPS, ::MPS) when MPS have multiple site indices (#549) (@mtfishman)

v0.1.32

ITensors v0.1.32

Diff since v0.1.31

Merged pull requests:

• Docs for observer system (#546) (@emstoudenmire)
• Add regression test for scalar contract bug (#547) (@mtfishman)

v0.1.31

ITensors v0.1.31

Diff since v0.1.30

Closed issues:

• IndexSet docs are outdated and need more details (#541)

Merged pull requests:

• Add Ising YY and ZZ gates (#539) (@anupam-mitra)
• Introduce splitblocks function (#540) (@mtfishman)
• Add flux of IndexVal functionality (#543) (@mtfishman)
• Improve contractions involving scalar-like ITensors or blocks (#545) (@mtfishman)