Oqupy

- [Aidan Strathearn](https://github.com/aidanstrathearn): Gibbs state TEMPO [11].
- [Eoin P. Butler](https://github.com/ebutler414), [Eoin O'Neill](https://github.com/eoin-dp-oneill), and [Paul R. Eastham](https://github.com/paulreastham): Process tensor gradients and optimization [8,9]
- [Ewen D.C. Lawrence](https://github.com/ewenlawrence) and [Peter Kirton](https://github.com/peterkirton/): Degeneracy trick in TEMPO and PT-TEMPO.
- [Roosmarijn de Wit](https://github.com/rmadw): Multi-time system correlations.
- [Piper Fowler-Wright](https://github.com/piperfw): TEMPO parameter tutorial and automatic estimation.

- [Joel Beckles](https://github.com/JoelANB) and [Piper Fowler-Wright](https://github.com/piperfw): Extension of mean-field evolution to multiple types of system

- Fix process tensor file loading (73 74)

- Fix PT-TEBD for chains of systems with different Hilbert space dimensions (70 71)
- Fix PT-TEBD with on-site Lindblad dissipation (69 71)

Major code contributions
**Lead development by [Gerald E. Fux](https://github.com/gefux)**

This open source project aims to facilitate versatile numerical tools to efficiently compute the dynamics of quantum systems that are possibly strongly coupled to structured environments. It allows to conveniently apply several numerical methods related to the time evolving matrix product operator (TEMPO) [1-2] and the process tensor (PT) approach to open quantum systems [3-5]. This includes methods to compute ...

- the dynamics of a quantum system strongly coupled to a bosonic environment [1-2].
- the process tensor of a quantum system strongly coupled to a bosonic environment [3-4].
- optimal control procedures for non-Markovian open quantum systems [5].
- the dynamics of a strongly coupled bosonic environment [6].
- the dynamics of a quantum system coupled to multiple non-Markovian environments [7].
- the dynamics of a chain of non-Markovian open quantum systems [8].
- **the dynamics of an open many-body system with one-to-all light-matter coupling [9].**

(new functionality in *OQuPy 0.3.0* is listed in **bold**)

Major code contributions
**Lead development by [Gerald E. Fux](https://github.com/gefux)**

- [Piper Fowler-Wright](https://github.com/piperfw): Open quantum systems with mean-field evolution [9]