Regensburg 2022 – wissenschaftliches Programm

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SYUK: Symposium United Kingdom as Guest of Honor

SYUK 2: United Kingdom as Guest of Honor II

SYUK 2.2: Hauptvortrag

Mittwoch, 7. September 2022, 15:30–16:00, H2

Non-equilibrium dynamics of many-body quantum systems versus quantum technologies — •Irene D’Amico — University of York, York, UK

Quantum technologies take advantage of properties developed by quantum systems when driven out of equilibrium. For example, quantum computation is based on an accurate, controlled driving of these systems to perform specific dynamics which produce entanglement, compute basic gates, and eventually leads to the completion of a numerical algorithm. Thermal fluctuations are often an enemy which spoils the controlled out-of-equilibrium dynamics. On the other side, quantum thermodynamics takes advantage of thermal - and quantum - fluctuations to create engines and refrigerators of sizes well below the thermodynamic limit and properties still under discussion. In this talk we will first focus on engineering robust properties for distributed quantum computing using spin-networks [1]: here the twist is not to drive the out-of-equilibrium dynamics, but let the system Hamiltonian do the job. We will then turn up the temperature, and consider a less-explored aspect of quantum thermodynamics, that is the effects and signatures of many-body interactions on few-electrons’ quantum machines [2].

[1] L. Mortimer et al., Adv. Quantum Technologies 4, 2100013 (2021); A. H. Alsulami et al., arXiv:2202.02632

[2] K. Zawadzki et al., Phys. Rev. Research 2,033167 (2020); M. Herrera et al. Phys. Rev. Lett. 127, 030602 (2021); G. A. Canella et al., preprint (2022)