Implemeting TTI-PTs#158

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emile-cochin wants to merge 33 commits intotempoCollaboration:mainfrom

emile-cochin:iTEBD

Commits on Mar 1, 2026

Incorporated Link's code, modded to use our bath class, example file using both iTEBD and OQuPy

paulreastham
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gefux
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Added statement of modifications to comply with Apache license

paulreastham
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gefux
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New class TTIInvariantProcessTensor to allow use of iTEBD process tensor in OQuPy + testing

paulreastham
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gefux
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Extra commit of unsaved file

paulreastham
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gefux
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Incorporated speed up to create_deltas (other branch), added example of time dependent Hamiltonian to iTEBD-example

paulreastham
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gefux
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Renamed file from original iTEBD

paulreastham
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gefux
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Cleaned up example file, Move computation in TTInvariantProcessTensor to init from get_mpo.

paulreastham
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gefux
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Modified to make an interface similar to PT-TEMPO

paulreastham
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gefux
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Tidied up example

paulreastham
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gefux
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Tiny bugfix

paulreastham
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gefux
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AddED exclusion to pylintrc for Link's codes

paulreastham
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gefux
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Moved transform code from get_mpo to init for TTI PT

paulreastham
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gefux
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Tweaked example to use get_process_tensor

paulreastham
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gefux
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Lint removal

paulreastham
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gefux
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Attempt at optimization in iTEBD

paulreastham
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gefux
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Added num_steps optional parameter to state_gradient. If None uses length of PT.

paulreastham
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gefux
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Development notebook mods for testing/exploration.

paulreastham
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gefux
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Implemented backprop using part of PT.

paulreastham
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gefux
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Tweak to remove call to __len__()

paulreastham
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gefux
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Example using TTI-PT OK

paulreastham
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gefux
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Use faster create_delta in PT

paulreastham
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gefux
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Example optimization using TTIMPO

paulreastham
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gefux
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Added .ipynb version of fidelity example with results

paulreastham
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gefux
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Deleted outdated file

paulreastham
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gefux
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Added a settable length attribute to TTI process tensor, so it can be used with the bath_dynamics.ipynb code.

paulreastham
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gefux
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Added 'only_dynamics' option to gradient calculation to allow calculations of dynamics without gradients.

paulreastham
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gefux
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Add iTEBD paper reference
gefux
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Move and rename various tti-tempo files
gefux
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Replace tqdm with util.get_progress; Remove tqdm and qutip dependencies
gefux
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Add Apache 2.0 License to itebd_tempo.py
gefux
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Commits on Mar 11, 2026

shortcut in gate contraction with einsum and removed remaining BathCorrelation
emile-cochin
committed

Commits on Apr 17, 2026