v0.5.1

ITensors v0.5.1

Diff since v0.5.0

Merged pull requests:

• [Docs] Update links for lib (#1404) (@ryanlevy)
• Remove ITensorTDVP code (#1405) (@mtfishman)
• [ITensorMPS] Code reorganization (#1406) (@mtfishman)

v0.5.0

ITensors v0.5.0

Diff since v0.4.1

Merged pull requests:

• [NDTensors] Fix isempty(::Tensor) (#1401) (@mtfishman)
• [ITensorGLMakie] Update to GLMakie v0.9 (#1402) (@mtfishman)
• [ITensors] Introduce ITensorsPackageCompilerExt (#1403) (@mtfishman)

Closed issues:

• Interface proposal for MPS/MPO Index related functions (#527)
• Add support for T = emptyITensor(); T[i=>1,i'=>1] = 1.0 (#645)
• More Index constructors (#688)
• Define (::ITensor / ::ITensor) (#695)
• Failing error check in eigen (#721)
• [BUG] removeqns(::ITensor), removeqns(::MPS) not defined (#798)
• [ENHANCEMENT] Define convert_itensor_eltype for MPS/MPO (#804)
• [ENHANCEMENT] Define LinearAlgebra.diag and LinearAlgebra.diagind for ITensors (#805)
• [ITensors] [ENHANCEMENT] Docs on finite temperature calculations (#864)
• [ITensors] [ENHANCEMENT] FAQ about typing unicode symbols (#896)
• [ITensorGPU] [ENHANCEMENT] Add Github Action to test loading ITensorGPU (#1120)

v0.4.1

ITensors v0.4.1

Diff since v0.4.0

Merged pull requests:

• [CI][ITensorGPU] Update to latest Metal.jl, fix ITensorGPU CI (#1383) (@kmp5VT)
• [Docs] Section about running on GPUs (#1389) (@iagoleal)
• [NDTensors] HDF5 package extension (#1390) (@emstoudenmire)
• [README] Fix downloads count badge (#1398) (@pricklypointer)
• [ITensors] Move submodules to lib directory (#1399) (@mtfishman)
• [ITensors] Start organizing into submodules (#1400) (@mtfishman)

Closed issues:

• Make plussers a Tensor function (#145)
• Promote QNs when constructing ITensors or creating IndexSets (#176)
• Add block sparse matrix/tensor decompositions (#190)
• Restore QR in orthogonalize! (#220)
• Lazy ITensor contraction (#248)
• Optimizations for block sparse operations (#266)
• Print flux of QN ITensor and checkflux function (#268)
• ITensor iteration features (#281)
• MPS and MPO interface updates (#285)
• Documentation improvements (#289)
• Generalize map!(::Function, ::ITensor...) (#343)
• Improvements to TagSet and SmallString (#381)
• Investigate improving load/compile times by changing optimization level (#404)
• Consider using rational numbers for fractional QNs (#410)
• Add a debug check that all Indices in an IndexSet are unique (#415)
• Broadcasting over IndexSet issue (#416)
• New QN ITensor constructors (#418)
• Add normalize!(::MPS/MPO) (#500)
• DMRG eigsolve keyword argument names (#502)
• Generalize tr(::MPO) even more (#510)
• Add "RandomUnitary" gate (#594)
• If gesdd fails, automatically try gesvd (#595)
• Add blockrange function (#633)
• Add documentation for keyword arguments for dmrg (such as outputlevel) (#687)
• Add more support for accepting either Index and collections of Index throughout ITensors.jl (#732)
• Use LoopVectorization to optimize certain tensor contractions like reductions to scalars (#740)
• Document filterinds (#742)
• Add compatible function checking sites against MPS, MPO (#743)
• [ITensors] [BUG] Loading ITensors breaks basic StaticArrays functionality (#931)
• [ITensorGPU] [BUG] cuITensor(m, n) * delta(m, n) causes BoundsError (#1143)
• [NDTensors] [ENHANCEMENT] Support arbitrary label types in contract (#1203)
• [NDTensors] [ENHANCEMENT] Disable allowscalar in test suite (#1230)
• [ITensors] [ENHANCEMENT] Documentation about GPU support (#1387)
• [ITensorGPU] [BUG] Circuits starting with Rx gates fail (v0.1.6) (#1396)

v0.4.0

ITensors v0.4.0

Diff since v0.3.68

Merged pull requests:

• [ITensors] HDF5.jl package extension (#1382) (@emstoudenmire)

v0.3.68

ITensors v0.3.68

Diff since v0.3.66

Merged pull requests:

• Refactoring GPU extensions (#1365) (@kmp5VT)
• [ITensors] Observers.jl package extension (#1381) (@emstoudenmire)

Closed issues:

• [ITensors] [BUG] Autofermion system incompatible with simple (no QN) Indices (when factorizing) (#1312)
• [ITensors] [BUG] unexpected uniqueinds result (#1386)

v0.3.66

ITensors v0.3.66

Diff since v0.3.65

Merged pull requests:

• [ITensors] Fix non-QN eigen with auto-fermion enabled (#1380) (@mtfishman)

v0.3.65

ITensors v0.3.65

Diff since v0.3.64

Merged pull requests:

• [ITensors] Remove Observers dependency (#1379) (@emstoudenmire)

v0.3.64

ITensors v0.3.64

Diff since v0.3.63

Merged pull requests:

• [ITensors] Fix rrule for applying quantum circuit to non-hermitian MPO with apply_dag=true (#1344) (@ntausend)

Closed issues:

• [ITensors][BUG] Derivative of gate application of non-Hermitian MPOs with apply_dag=true (#1314)

v0.3.63

ITensors v0.3.63

Diff since v0.3.62

Merged pull requests:

• [ITensors] Extension implementing VectorInterface.jl for ITensors (#1373) (@mtfishman)

v0.3.62

ITensors v0.3.62

Diff since v0.3.61

Merged pull requests:

• [ITensorMPS] Make ITensorTDVP functions into compatibility layer (#1371) (@emstoudenmire)