v0.5.0

ITensorNetworks v0.5.0

Diff since v0.4.1

v0.4.1

ITensorNetworks v0.4.1

Diff since v0.4.0

Merged pull requests:

• Contraction path optimization with EinExprs (#120) (@mofeing)
• Fix mutation behavior of position (#131) (@b-kloss)
• Generalize ProjTTNSum, replace ProjTTNApply with ProjOuterProdTTN (#132) (@b-kloss)
• Add support for tensor network forms (bilinear and quadratic) (#136) (@JoeyT1994)
• Remove lattices.jl (#138) (@JoeyT1994)
• Belief propagation cache (#139) (@JoeyT1994)
• Improve compatibility with arbitrary vertextypes and tree structures (#141) (@b-kloss)
• Refactor sweeps interface (#143) (@b-kloss)
• Environments (#145) (@JoeyT1994)
• Update for latest ITensors (#148) (@mtfishman)
• Remove import, start updating style of using (#149) (@mtfishman)
• Update using style (#151) (@mtfishman)

Closed issues:

• alternating_update breaks for certain vertextypes (#140)

v0.4.0

ITensorNetworks v0.4.0

Diff since v0.3.10

Merged pull requests:

• Belief propagation order flexibility (#111) (@JoeyT1994)
• Resolve keyword argument issues (#113) (@JoeyT1994)
• Fix some issues around keyword arguments (#114) (@mtfishman)
• [Enhancement] Add quantum number support in TTNO constructor. (#116) (@b-kloss)
• Fix test failures (#118) (@mtfishman)
• Use ITensorNetworks.heisenberg in PEPS example (#119) (@mtfishman)
• Refactor interfaces built around alternating update (#121) (@b-kloss)
• Fermionic OpSum to TTN constructor (#122) (@b-kloss)
• Fix externalinds, add tests for externalinds and internalinds (#123) (@JoeyT1994)
• Partitioned ITensorNetwork (#126) (@JoeyT1994)
• Efficient implementation of expect for AbstractTTN (#129) (@b-kloss)

Closed issues:

• OpSum to TTN broken for multiple on-site operators (#62)
• Efficient implementation of expect for TTN? (#128)

v0.3.10

ITensorNetworks v0.3.10

Diff since v0.3.9

Merged pull requests:

• Add more general ITensorNetwork constructors from collections of ITensors (#107) (@mtfishman)
• Use simpler constructors for heavy hex lattice (#109) (@JoeyT1994)
• add(::ITensorNetwork, ::ITensorNetwork) with directsum backend (#110) (@JoeyT1994)

v0.3.9

ITensorNetworks v0.3.9

Diff since v0.3.8

Closed issues:

• Character limit on Tags raises issue when creating large, high-dimensional networks. (#78)

Merged pull requests:

• Add square root BP and BP-based simple update gate evolution (#100) (@mtfishman)
• Pass truncation kwargs to insert_local_tensor (#106) (@leburgel)

v0.3.8

ITensorNetworks v0.3.8

Diff since v0.3.7

Merged pull requests:

• Fix channel compression in OpSum to TTN converter (#104) (@leburgel)

v0.3.7

ITensorNetworks v0.3.7

Diff since v0.3.6

Merged pull requests:

• Refactor alternating_update to use sweep_regions (#77) (@emstoudenmire)
• Improved Gauging Interface, TNO construction, Bug Fixes, Apply Function for a Vidal ITN (#88) (@JoeyT1994)
• Fix a small bug related to caching in approx_itensornetwork (#89) (@LinjianMa)
• Introduce contraction_sequence_to_digraph and simplify contraction_sequence_to_graph (#91) (@LinjianMa)
• Introduce approx_itensornetwork with algorithm ttn_svd (#92) (@LinjianMa)
• Use Observer for output (#93) (@emstoudenmire)
• Added Efficiency Improvements in the code. Including fast versions of… (#94) (@JoeyT1994)
• Fix OpSum to TTN converter for multiple on-site operators (#95) (@leburgel)
• Small optimization for SU apply (#96) (@mtfishman)
• Heavy hex example (#101) (@JoeyT1994)
• Better Edge Tag Naming (#102) (@JoeyT1994)

v0.3.6

ITensorNetworks v0.3.6

Diff since v0.3.5

Merged pull requests:

• Belief Propagation Version 3 (#85) (@JoeyT1994)

v0.3.5

ITensorNetworks v0.3.5

Diff since v0.3.4

Merged pull requests:

• Let approx_itensornetwork support complex tensor network (#81) (@LinjianMa)
• [Easy] Make path_graph_structure the default output_structure in approx_itensornetwork (#82) (@LinjianMa)
• Let binary tree partition support the disconnected tensor network (#83) (@LinjianMa)
• Add interface that calls approx_itensornetwork inside contract (#84) (@LinjianMa)

v0.3.4

ITensorNetworks v0.3.4

Diff since v0.3.3

Closed issues:

• Approx_itensornetwork() on a rank two tensor yields an error (#79)

Merged pull requests:

• Square root ising (#76) (@JoeyT1994)
• [Easy] let contract_deltas handle the case with no deltas (#80) (@LinjianMa)