Quantum Random Access Codes Implementation for Resource Allocation and Coexistence with Classical Telecommunication

Year: 2024

Authors: Ribezzo D., Salazar R., Czartowski J., Segur F., Lemmi G., Petitjean A., Farrugia N., Bacco D., Xuereb A., Zavatta A.

Autors Affiliation: Consiglio Nazl Ric CNR INO, Ist Nazl Ottica, I-50125 Florence, Italy; Univ Napoli Federico II, Dipartimento Fis E Pancini, Complesso Univ Monte St Angelo,Via Cinthia 21, I-80126 Naples, Italy; Jagiellonian Univ, Fac Phys Astron & Appl Comp Sci, PL-30348 Krakow, Poland; Jagiellonian Univ, Doctoral Sch Exact & Nat Sci, Ul Ojasiewicza 11, PL-30348 Krakow, Poland; Merqury Cybersecur Ltd, Santa Venera Svr, Malta; Univ Malta, Dept Phys, MSD-2080 Msida, Malta; Univ Florence, Dept Phys & Astron, I-50019 Sesto Fiorentino, Italy; QTI Srl, I-50125 Florence, Italy.

Abstract: In a world where Quantum Networks are rapidly becoming a reality, the development of the Quantum Internet is gaining increasing interest. Nevertheless, modern quantum networks are still in the early stages of development and have limited capacity to distribute resources among different users – a constraint that needs to be taken into account. In this work, it aims to investigate these constraints, using a novel setup for implementing Quantum Random Access Codes (QRACs), communication protocols known for their quantum advantage over their classical counterparts and semi- device-independent self-testing applications. The QRAC states, made for the first time using weak coherent pulses instead of entangled single photons, allow us to experimentally test the encoding and decoding strategy from the resource allocation perspective. Moreover, by emulating a coexistent classical communication, it test the resilience of the implementation in presence of noise. The achieved results represent a significant milestone both for theoretical studies of quantum resource allocation and for the implementation of quantum infrastructures capable of coexisting with regular telecommunication networks. For the first time, a setup capable of performing Quantum Random Access Code, a communication protocol known for showing quantum advantage, is implemented utilizing weak coherent pulses instead of real single photons. The results for 2 and 4D quantum states demonstrate an optimal allocation of quantum resources, a question of utmost importance in quantum networks and quantum internet.image

Journal/Review: ADVANCED QUANTUM TECHNOLOGIES

Volume: 7 (4)      Pages from:   to:

More Information: R.S. acknowledges the financial support of the Foundation for Polish Science through the TEAM-NET project (contract no. POIR.04.04.00-00-17C1/18-00). J.C. acknowledges the financial support from NCN DEC-2019/35/O/ST2/01049. R.S. and J.C. also thank partial funding from LASERLAB-EUROPE (grant agreement no. 871124, European Union’s Horizon 2020 research and innovation programme). This work was partially supported by the European Union’s Horizon 2020 research and innovation programme, project QUANGO (grant agreement no. 101004341) [A.X. and N.F.] and project QSNP (grant agreement no. 101080116 and no. 101114043) [A.X.]; the European Union’s Horizon Europe research and innovation programme, project QUDICE (grant agreement no. 101082596) [A.X.]; and the European Union’s Digital Europe Programme, project PRISM (grant agreement no. 101111875) [A.X. and N.F.]. This work was partially supported by the Center of Excellence SPOC (ref DNRF123), Innovations fonden project Fire-Q (no. 9090-00031B), the NATO Science for Peace and Security program (Grant no. G5485, project SEQUEL), the programme Rita Levi Montalcini QOMUNE (PGR19GKW5T), the EraNET Cofund Initiatives QuantERA within the European Union’s Horizon 2020 research and innovation program grant agreement no.731473 (project SQUARE), the Project EQUO (European QUantum ecOsystems), which was funded by the European Commission in the Digital Europe Programme under the grant agreement no. 101091561, the Project SERICS (PE00000014) under the MUR National Recovery and Resilience Plan funded by the European Union – NextGenerationEU, the Project QuONTENT under the Progetti di Ricerca@CNR program funded by the Consiglio Nazionale delle Ricerche (CNR) and by the European Union – PON Ricerca e Innovazione 2014-2020 FESR – Project ARS01_00734 QUANCOM.
KeyWords: high-dimensional qubit; quantum internet; quantum random access code; quantum resources; resource allocation
DOI: 10.1002/qute.202300162

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