Authors & Acknowledgements

• Lead developer since 2020: Gerald E. Fux (gerald.e.fux@gmail.com)

• Co-lead developer since 2022: Piper Fowler-Wright (piperfw@gmail.com)

Major code contributions

Experimental features

• Sampreet Kalita: JAX numerical backend for GPU/TPU support

Version 0.5.0

• Aidan Strathearn: Gibbs state TEMPO [Chiu2022].

• Eoin P. Butler, Eoin O’Neill, and Paul R. Eastham: Process tensor gradients and optimization [Fux2021, Butler2024]

• Ewen D.C. Lawrence and Peter Kirton: Degeneracy trick in TEMPO and PT-TEMPO.

• Roosmarijn de Wit: Multi-time system correlations.

• Piper Fowler-Wright: TEMPO parameter tutorial and automatic estimation.

Version 0.4.0

• Joel Beckles and Piper Fowler-Wright: Extension of mean-field evolution to multiple types of system.

Version 0.3.0

• Piper Fowler-Wright: Open quantum systems with mean-field evolution [FowlerWright2022].

Version 0.2.0

• Gerald E. Fux: Chains of open quantum systems [Fux2023]. - Dainius Kilda: Precursor code for chains of open quantum systems [Fux2023].

• Dominic Gribben: Bath dynamics extension [Gribben2022b].

• Dominic Gribben: Multiple environments extension [Gribben2022a].

Version 0.1.2 (TimeEvolvingMPO)

• Gerald E. Fux: Improved memory cut-off [Strathearn2017].

Version 0.1.0 (TimeEvolvingMPO)

• Gerald E. Fux: Implement process tensor TEMPO (API and backend) [Fux2021].

• Gerald E. Fux: Implement core TEMPO functionality (API and backend) [Strathearn2018].

• Gerald E. Fux: Setup Project (CI, API design, project planning, etc.).

Acknowledgements

Scientific advisors:

• Jonathan Keeling (University of St Andrews)

• Brendon W. Lovett (University of St Andrews)

Other Collaborators:

• Kristín Arnardóttir (University of Southern Denmark)

• Erik Gauger (Heriot-Watt University)

• Thibaut Lacroix (University of Ulm)