v0.3.2

ITensors v0.3.2

Diff since v0.3.1

Merged pull requests:

• [ITensors] [ENHANCEMENT] Factorize out contract(::ProjMPO, ::ITensor) (#893) (@mtfishman)
• [ITensors] [ENHANCEMENT] Introduct set_nsite! generic AbstractProjMPO function (#894) (@mtfishman)

v0.3.1

ITensors v0.3.1

Diff since v0.3.0

Merged pull requests:

• [NDTensors] [ENHANCEMENT] Add fallbacks for when LAPACK SVD fails (#885) (@mtfishman)
• [ITensors] [ENHANCMENT] Introduce Algorithm type for selecting algorithm backends (#886) (@mtfishman)
• Finite temperature example codes (#891) (@emstoudenmire)

v0.3.0

ITensors v0.3.0

Diff since v0.2.16

Closed issues:

• [ENHANCEMENT] expect interface (#800)
• [ITensors] [ENHANCEMENT] Change imaginary part check in sample(::MPO) from error to warning (#822)
• [ITensors] [BUG] An unexpected excited state energy for a 4 site S=1/2 Heisenberg model from DMRG (#845)
• [ITensors] [ENHANCEMENT] More general site_range collections in correlation_matrix (#850)
• [ITensors] [BUG] DMRG tutorial: UndefVarError: siteinds not defined (#851)
• [ITensors] [ENHANCEMENT] Add + operation in the op system (#854)
• [ITensors] [BUG] Error in expect due to missing check of roundoff imaginary parts (#866)

Merged pull requests:

• Add normalize! to TEBD Tutorial (#842) (@emstoudenmire)
• Unification of gate and op & some OpSum functions (#843) (@GTorlai)
• Change excited state DMRG example to use randomMPS (#846) (@emstoudenmire)
• Expand docstring for ITensors module [no ci] (#847) (@emstoudenmire)
• [NDTensors] [ENHANCEMENT] Allow general AbstractArray as data of Dense storage Tensor/ITensor (#848) (@mtfishman)
• Small improvements and remove Julia 1.3 (#849) (@emstoudenmire)
• rrules for apply (#852) (@GTorlai)
• Improve Sweeps constructors (#856) (@emstoudenmire)
• + and - in the op system (#857) (@GTorlai)
• Implement changes in #800 for expect interface (#858) (@emstoudenmire)
• [WIP] Get some AD working for Ops (#859) (@mtfishman)
• Remove unnecessary code from ITensorGPU (#860) (@kshyatt)
• rrule for MPS(Vector{::ITensor}) (#865) (@GTorlai)
• Fix expect for complex MPS (#867) (@emstoudenmire)
• correlation_matrix sites keyword (#868) (@emstoudenmire)
• Bug fixes for truncation of MPS on GPU (#871) (@mthamm)
• Remove duplicate definition of + for OpSum (AutoMPO) (#872) (@emstoudenmire)
• [ITensors] [ENHANCEMENT] Deprecate automatically making indices match in inner and outer (#877) (@mtfishman)
• [ITensors] Contraction sequence diff (#878) (@DomCRose)
• [ITensors] [ENHANCMENT] Introduce apply(::MPO, ::MPO) (#880) (@mtfishman)
• Define rmul! for AbstractMPS (#881) (@emstoudenmire)

v0.2.16

ITensors v0.2.16

Diff since v0.2.15

Closed issues:

• [ITensors] [ENHANCEMENT] Dictionary/kwargs interface for sweeps in dmrg (#827)
• [ITensors] [BUG] DMRG example seems slow (#829)

Merged pull requests:

• [ITensors] [ENHANCEMENT] Add normalize[!](::MPS/MPO) (#820) (@mtfishman)
• Get rid of problematic line (#823) (@kshyatt)
• Fix ITensor rrule with array reshaping (#824) (@DomCRose)
• [ITensors] Fix string indexing when setting elements (#826) (@mtfishman)
• Simplify Dense AutoMPO Backend (#828) (@emstoudenmire)
• [ITensors] [BUG] Fix prime/tag rrule for MPS/MPO (#830) (@mtfishman)
• [ITensors] [BUG] Fix differentiation of apply(::ITensor, ::ITensor) (#831) (@mtfishman)
• [ITensorMakie] [ENHANCEMENT] Disable rotating edge labels with edge (#832) (@mtfishman)
• [ITensors] [ENHANCEMENT] More flexible state syntax (overloading and calling) (#833) (@mtfishman)
• [ITensors] [ENHANCMENT] Add more compact kwarg sweeps syntax for DMRG (#834) (@mtfishman)
• [ITensors] [ENHANCMENT] Define inner(::ITensor, ::ITensor) and related (#835) (@mtfishman)
• [ITensors] [BUG] Fix inner MPS rrule for complex and QNs, add tests (#836) (@mtfishman)
• [ITensors] [ENHANCEMENT] Define diag(::Tensor), diag(::ITensor) (#837) (@mtfishman)
• [ITensors] [ENHANCEMENT] Allow dividing by scalar ITensor (#838) (@mtfishman)
• [ITensors] [ENHANCEMENT] Support indexing notation A["Up"] (#839) (@mtfishman)
• [ITensorVisualizationBase] [ENHANCEMENT] Remove subscript from single tensor visualization. Show plevs by default. (#841) (@mtfishman)

v0.2.15

ITensors v0.2.15

Diff since v0.2.14

Closed issues:

• [ITensors] [BUG] correlation_matrix nonsymmetric constraint (#810)
• [ITensors] [BUG] AutoMPO conflicts with the Gnuplot.jl dependency StructC14N.jl (#814)

Merged pull requests:

• [ITensors] [BUG] correlation_matrix nonsymmetric constraint #810 (#817) (@JanReimers)

v0.2.14

ITensors v0.2.14

Diff since v0.2.13

Merged pull requests:

• Fix apply and inner rrules for complex and QN conserving MPS (#816) (@mtfishman)
• Fix ITensor rrule and generalize ITensor to Array conversion (#818) (@DomCRose)

v0.2.13

ITensors v0.2.13

Diff since v0.2.12

Closed issues:

• [ENHANCEMENT] Improve format Github action (#803)

Merged pull requests:

• CompatHelper: bump compat for PackageCompiler to 2, (keep existing compat) (#768) (@github-actions[bot])
• Move ITensorGPU into ITensors repository (#791) (@mtfishman)
• Move ITensorGaussianMPS package into ITensors repository (#792) (@mtfishman)
• [ITensorMakie] Add compat entry for Graphs (#793) (@mtfishman)
• [ITensorGPU] Add Jenkins testing CI (#794) (@mtfishman)
• FAQ on the relationship of ITensor to other tensor libraries (#795) (@mtfishman)
• Apply docs (#797) (@mtfishman)
• Remove ignore comments for JuliaFormatter (#799) (@mtfishman)
• Add docs for enabling debug checks (#801) (@mtfishman)
• [ITensorVisualizationBase] [ENHANCEMENT] Generalize visualize (#802) (@mtfishman)
• Change randomMPS bond dim error to warning (#806) (@mtfishman)
• CompatHelper: bump compat for HDF5 to 0.16, (keep existing compat) (#807) (@github-actions[bot])
• Add issue templates for all subdir packages (#808) (@mtfishman)
• [ITensors] [ENHANCEMENT] Expand ITensor development guide (#809) (@mtfishman)
• [ITensors] [ENHANCEMENT] Start implemented rrule for apply (#811) (@mtfishman)
• Make getindex on EmptyStorage return EmptyNumber (#812) (@mtfishman)
• Fix eltype promotion dividing ITensor by scalar (#813) (@mtfishman)

v0.2.12

ITensors v0.2.12

Diff since v0.2.11

Merged pull requests:

• Move NDTensors to a subdirectory to prepare for registering (#777) (@mtfishman)
• ITensorVisualization subdir package (#778) (@mtfishman)
• Split off ITensorVisualization into ITensorUnicodePlots and ITensorMakie visualization backends (#779) (@mtfishman)
• Use registered subdir version of NDTensors (#780) (@mtfishman)
• Fix Documenter CI with new NDTensors subdir package (#782) (@mtfishman)
• Add layered_layouts helper function. (#784) (@mtfishman)
• Add ITensorVisualizationCore, make dependency of ITensors module (#785) (@mtfishman)
• Try getting GLMakie testing CI working (#787) (@mtfishman)
• Rename ITensorVisualization to ITensorVisualizationBase (#789) (@mtfishman)

v0.2.11

ITensors v0.2.11

Diff since v0.2.10

Closed issues:

• op with * fails with unicode character OpNames (#758)
• indexing NDTensor does not work as expected (#774)

Merged pull requests:

• Fix conj and scalar multiplication of EmptyStorage (#756) (@mtfishman)
• Fix link for the qudit sitetype in custom SiteType documentation (#762) (@hershsingh)
• Add ITensorNetworkMap (#764) (@mtfishman)
• CompatHelper: add new compat entry for LinearMaps at version 3, (keep existing compat) (#765) (@github-actions[bot])
• Fix MPO OpSum for operator names with unicode (#767) (@mtfishman)
• Lazy Op system (#769) (@mtfishman)
• Fix itensor rrule (#773) (@GTorlai)
• Fix bug when slicing a Dense Tensor with mixed ranges and integers (#775) (@mtfishman)

v0.2.10

ITensors v0.2.10

Diff since v0.2.9

Merged pull requests:

• Add ChainRules rules for basic reverse mode AD rules for ITensors (#761) (@mtfishman)