dc.contributor.author
Khatria, Sumeet
dc.date.accessioned
2023-02-17T08:10:01Z
dc.date.available
2023-02-17T08:10:01Z
dc.identifier.uri
https://refubium.fu-berlin.de/handle/fub188/37954
dc.identifier.uri
http://dx.doi.org/10.17169/refubium-37670
dc.description.abstract
The quantum internet is one of the frontiers of quantum information science. It will revolutionize the way we communicate and do other tasks, and it will allow for tasks that are not possible using the current, classical internet. The backbone of a quantum internet is entanglement distributed globally in order to allow for such novel applications to be performed over long distances. Experimental progress is currently being made to realize quantum networks on a small scale, but much theoretical work is still needed in order to understand how best to distribute entanglement, especially with the limitations of near-term quantum technologies taken into account. This work provides an initial step toward this goal. In this work, we lay out a theory of near-term quantum networks based on Markov decision processes (MDPs), and we show that MDPs provide a precise and systematic mathematical framework to model protocols for near-term quantum networks that is agnostic to the specific implementation platform. We start by simplifying the MDP for elementary links introduced in prior work and by providing new results on policies for elementary links in the steady-state (infinite-time) limit. Then, we show how the elementary link MDP can be used to analyze a complete quantum network protocol. We then provide an extension of the MDP formalism to two elementary links. Here, as new results, we derive linear programing relaxations that allow us to obtain optimal steady-state policies with respect to the expected fidelity and waiting time of the end-to-end link.
en
dc.format.extent
42 Seiten
dc.rights.uri
https://creativecommons.org/licenses/by/4.0/
dc.subject
quantum information science
en
dc.subject
quantum internet
en
dc.subject
near-term quantum networks
en
dc.subject.ddc
500 Naturwissenschaften und Mathematik::530 Physik::530 Physik
dc.title
On the design and analysis of near-term quantum network protocols using Markov decision processes
dc.type
Wissenschaftlicher Artikel
dcterms.bibliographicCitation.articlenumber
030501
dcterms.bibliographicCitation.doi
10.1116/5.0084653
dcterms.bibliographicCitation.journaltitle
AVS Quantum Science
dcterms.bibliographicCitation.number
3
dcterms.bibliographicCitation.volume
4
dcterms.bibliographicCitation.url
https://doi.org/10.1116/5.0084653
refubium.affiliation
Physik
refubium.affiliation.other
Institut für Theoretische Physik
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refubium.funding
Open Access in Konsortiallizenz
refubium.note.author
Die Publikation wurde aus Open Access Publikationsgeldern der Freien Universität Berlin gefördert.
refubium.resourceType.isindependentpub
no
dcterms.accessRights.openaire
open access
dcterms.isPartOf.eissn
2639-0213