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From non-Markovian dissipation to spatiotemporal control of quantum nanodevices
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dc.contributor.author | Lacroix, Thibaut Francois Marie | |
dc.contributor.author | Lovett, Brendon William | |
dc.contributor.author | Chin, Alex W. | |
dc.date.accessioned | 2024-04-17T10:30:17Z | |
dc.date.available | 2024-04-17T10:30:17Z | |
dc.date.issued | 2024 | |
dc.identifier | 300927000 | |
dc.identifier | 0dda6e9d-99f1-4987-ad55-28353574e30d | |
dc.identifier | 85189679204 | |
dc.identifier.citation | Lacroix , T F M , Lovett , B W & Chin , A W 2024 , ' From non-Markovian dissipation to spatiotemporal control of quantum nanodevices ' , Quantum , vol. 8 , 1305 . https://doi.org/10.22331/q-2024-04-03-1305 | en |
dc.identifier.issn | 2521-327X | |
dc.identifier.other | ORCID: /0000-0001-5142-9585/work/158123411 | |
dc.identifier.uri | https://hdl.handle.net/10023/29694 | |
dc.description | Funding: TL, AWC and BWL thank the Defence Science and Technology Laboratory (Dstl) and Direction Générale de l’Armement (DGA) for support through the Anglo-French PhD scheme. BWL acknowledges support from EPSRC grant EP/T014032/1. | en |
dc.description.abstract | Nanodevices exploiting quantum effects are critically important elements of future quantum technologies (QT), but their real-world performance is strongly limited by decoherence arising from local `environmental' interactions. Compounding this, as devices become more complex, i.e. contain multiple functional units, the `local' environments begin to overlap, creating the possibility of environmentally mediated decoherence phenomena on new time-and-length scales. Such complex and inherently non-Markovian dynamics could present a challenge for scaling up QT, but – on the other hand – the ability of environments to transfer `signals' and energy might also enable sophisticated spatiotemporal coordination of inter-component processes, as is suggested to happen in biological nanomachines, like enzymes and photosynthetic proteins. Exploiting numerically exact many body methods (tensor networks) we study a fully quantum model that allows us to explore how propagating environmental dynamics can instigate and direct the evolution of spatially remote, non-interacting quantum systems. We demonstrate how energy dissipated into the environment can be remotely harvested to create transient excited/reactive states, and also identify how reorganisation triggered by system excitation can qualitatively and reversibly alter the `downstream' kinetics of a `functional' quantum system. With access to complete system-environment wave functions, we elucidate the microscopic processes underlying these phenomena, providing new insight into how they could be exploited for energy efficient quantum devices. | |
dc.format.extent | 23 | |
dc.format.extent | 6562584 | |
dc.language.iso | eng | |
dc.relation.ispartof | Quantum | en |
dc.subject | QC Physics | en |
dc.subject | 3rd-DAS | en |
dc.subject.lcc | QC | en |
dc.title | From non-Markovian dissipation to spatiotemporal control of quantum nanodevices | en |
dc.type | Journal article | en |
dc.contributor.sponsor | EPSRC | en |
dc.contributor.institution | University of St Andrews. Centre for Designer Quantum Materials | en |
dc.contributor.institution | University of St Andrews. Condensed Matter Physics | en |
dc.contributor.institution | University of St Andrews. School of Physics and Astronomy | en |
dc.identifier.doi | https://doi.org/10.22331/q-2024-04-03-1305 | |
dc.description.status | Peer reviewed | en |
dc.identifier.grantnumber | EP/T014032/1 | en |
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