Open Collections

Avoiding irreversibility: engineering resonant conversions of quantum resources

Banff International Research Station for Mathematical Innovation and Discovery

We identify and explore the intriguing property of resource resonance arising within resource theories of entanglement, coherence and thermodynamics. While the theories considered are reversible asymptotically, the same is generally not true in realistic scenarios where the available resources are bounded. The finite-size effects responsible for this irreversibility could potentially prohibit small quantum information processors or thermal machines from achieving their full potential. Nevertheless, we show here that by carefully engineering the resource interconversion process any such losses can be greatly suppressed. Our results are predicted by higher order expansions of the trade-off between the rate of resource interconversion and the achieved fidelity, and are verified by exact numerical optimizations of the appropriate underlying approximate majorization conditions.

Mathematics; Quantum theory; Operator theory; Mathematical physics

video/mp4

Author affiliation: University of Technology Sydney

2020-01-20

Attribution-NonCommercial-NoDerivatives 4.0 International

http://hdl.handle.net/2429/73347

Unreviewed

http://creativecommons.org/licenses/by-nc-nd/4.0/