The Quantum Cartpole


van Nieuwenburg, E. (2023). The Quantum Cartpole. Perimeter Institute. https://pirsa.org/23060048


van Nieuwenburg, Evert. The Quantum Cartpole. Perimeter Institute, Jun. 16, 2023, https://pirsa.org/23060048


          @misc{ pirsa_PIRSA:23060048,
            doi = {10.48660/23060048},
            url = {https://pirsa.org/23060048},
            author = {van Nieuwenburg, Evert},
            keywords = {Condensed Matter},
            language = {en},
            title = {The Quantum Cartpole},
            publisher = {Perimeter Institute},
            year = {2023},
            month = {jun},
            note = {PIRSA:23060048 see, \url{https://pirsa.org}}

Evert van Nieuwenburg Leiden University


How do you control something you can not look at? For controlling quantum systems, information on the system’s state could come through weak measurements. Such measurements provide some information, but will inevitably also perturb the system, meaning there is noise both in the state estimation as well as in the measurement. We study a simple single particle quantum setup (the quantum equivalent of the instability problem known as the cartpole problem) and investigate several control methods including reinforcement learning, and compare their performance.