{ "meta": { "api_type": "NWO Projects API", "version": "1.0.2", "licence": { "name": "CC0 1.0 Universal", "url": "https://creativecommons.org/publicdomain/zero/1.0", "description": "To the extent possible under law, all copyright and related or neighbouring rights have been waived worldwide to the data made available through this API." }, "documentation": "https://doi.org/10.5281/zenodo.14918287", "release_date": "2025-08-20T00:00:00", "funder": "https://doi.org/10.13039/501100003246", "ror_id": "https://ror.org/04jsz6e67", "date": "2026-11-05T00:00:00", "count": 1, "per_page": 100, "pages": 1, "page": 1 }, "projects": [ { "project_id": "NGF.1582.22.025", "title": "Experimental Quantum Position Verification", "funding_scheme_id": 4579, "funding_scheme": "NGF - Quantum Delta NL Quantum Technologie 2022 2022", "department": "Exacte en Natuurwetenschappen", "sub_department": "Exacte en Natuurwetenschappen", "start_date": "2023-10-01T00:00:00", "reporting_year": 2022, "summary_nl": "De geografische ligging is vaak een uitstekende referentie voor bijvoorbeeld de computer in het gebouw van een bank. Helaas is bewezen dat veilige verificatie van een positie met behulp van triangulatie onmogelijk is met klassieke communicatie. Het doel van dit voorstel is om eerst experimenteel \"kwantumpositieverificatie\" aan te tonen, wat veilig kan zijn. Door kwantumbits te gebruiken, garandeert de kwantummechanische \"no-cloning theorem\", dat aanvallers het protocol niet kunnen compromitteren door de informatie te onderscheppen en te kopiëren. Na een laboratoriumdemonstrator en een veldtest hopen we kwantumpositieverificatie te kunnen implementeren in het Nederlandse kwantumnetwerk.", "summary_en": "The geographic location often is an excellent credential, for instance, for the computer in the building of a bank. Unfortunately, secure verification of a position using triangulation has been proven to be impossible with classical communication. The goal of this proposal is to firstly demonstrate experimentally \"quantum position verification\", which can be secure. By using qubits, the quantum mechanical \"no-cloning theorem\" guarantees that attackers cannot compromise the protocol by intercepting and copying the information. After a lab demonstrator and a field test, we hope to be able to implement quantum position verification in the Dutch quantum network.", "award_amount": 358737, "grant_id": "https://doi.org/10.61686/KYIZP37412", "summary_updates": [ { "submission_date": "2025-11-04T18:08:10", "update_en": "We were able to show a first experimental demonstration of quantum position verification using true single photons. The single photons are produced in a single quantum dot, efficiently extracted using an optical microcavity, and temporally demultiplexed using fast optical switch before being sent to both verifiers. The verifiers encode quantum information and send the photons to the prover, who performs the quantum task. Our experiment highlights and explores several of the challenges towards implementing QPV in real-world applications, which we address now.", "update_nl": "We hebben een eerste experimentele demonstratie van kwantumpositieverificatie gedaan met echte individuele fotonen. De fotonen worden geproduceerd in een enkele kwantumdot, efficiënt geëxtraheerd met behulp van een optische micro-trilholte en tijdelijk gedemultiplexed met een snelle optische schakelaar, voordat ze naar beide verifiers worden gestuurd. De verifiers coderen kwantuminformatie en sturen de fotonen naar de prover, die de kwantumtaak uitvoert. Ons experiment belicht en onderzoekt verschillende uitdagingen bij de implementatie van QPV in praktische toepassingen, die we nu aanpakken." } ], "project_members": [ { "role": "Main Applicant", "member_id": 220473, "last_name": "Löffler", "degree_pre_nominal": "dr.", "degree_post_nominal": "PhD", "initials": "W.", "first_name": "Wolfgang", "organisation": "Universiteit Leiden||Faculteit der Wiskunde en Natuurwetenschappen||Huygens Laboratorium", "organisation_id": 76827, "ror": "https://ror.org/027bh9e22", "active": true }, { "role": "Project leader", "member_id": 220473, "last_name": "Löffler", "degree_pre_nominal": "dr.", "degree_post_nominal": "PhD", "initials": "W.", "first_name": "Wolfgang", "organisation": "Universiteit Leiden||Faculteit der Wiskunde en Natuurwetenschappen||Huygens Laboratorium", "organisation_id": 76827, "ror": "https://ror.org/027bh9e22", "active": true }, { "role": "Researcher", "member_id": 538342, "last_name": "Steenbergen", "degree_pre_nominal": "drs.", "initials": "T.A.", "first_name": "Thomas", "organisation": "Universiteit Leiden||Faculteit der Wiskunde en Natuurwetenschappen||Leids Instituut voor Onderzoek in de Natuurkunde (LION)", "organisation_id": 79644, "ror": "https://ror.org/027bh9e22", "active": true } ], "products": [ { "title": "Towards experimental demonstration of quantum position verification using single photons", "year": 2025, "edition": "10", "start": 45004, "end": 1, "type": "Wetenschappelijk artikel", "url_open_access": "https://doi.org/10.1088/2058-9565/adf2da", "journal_title": "Quantum Sci. Technol.", "authors": [ { "last_name": "Kanneworff", "initials": "K", "role": "Auteur" } ] }, { "title": "Young’s double-slit experiment with anisotropic GHz surface acoustic waves on gallium arsenide", "year": 2025, "edition": "20", "start": 6385, "end": 6388, "type": "Wetenschappelijk artikel", "url_open_access": "https://doi.org/10.1364/OL.573360", "journal_title": "Optics Letters2025", "authors": [ { "last_name": "Steenbergen", "initials": "TA", "role": "Auteur" } ] }, { "title": "Imaging transverse modes in a gigahertz surface-acoustic-wave cavity", "year": 2025, "edition": "23", "start": 14032, "end": 14033, "type": "Wetenschappelijk artikel", "url_open_access": "https://www.doi.org/10.1103/PhysRevApplied.23.014032", "journal_title": "Phys. Rev. Applied", "authors": [ { "last_name": "Steenbergen", "initials": "TA", "role": "Auteur" } ] } ] } ] }