- document
-
Stolk, A.J. (author), van der Enden, K.L. (author), Roehsner, M.C. (author), Teepe, A. (author), Faes, S.O.J. (author), Bradley, C.E. (author), Cadot, S. (author), van Rantwijk, J. (author), te Raa, I. (author), Hagen, R.A.J. (author), Verlaan, A.L. (author), Biemond, F.F.B. (author), Khorev, A. (author), Vollmer, R. (author), Markham, M. (author), Edmonds, A.M. (author), Morits, J.P.J. (author), Taminiau, T.H. (author), van Zwet, E.J. (author), Hanson, R. (author)We demonstrate interference of photons emitted by remote, spectrally distinct NV-centers. Quantum frequency conversion at the nodes brings the photons to the same wavelength in the telecom L-band, compatible with entanglement generation at metropolitan scale.conference paper 2022
- document
-
Stolk, A.J. (author), van der Enden, K.L. (author), Roehsner, M.C. (author), Teepe, A. (author), Faes, S.O.F. (author), Bradley, C.E. (author), Cadot, S. (author), van Rantwijk, J. (author), te Raa, I. (author), Hagen, R.A.J. (author), Verlaan, A.L. (author), Biemond, J.J.B. (author), Khorev, A. (author), Vollmer, R. (author), Markham, M. (author), Edmonds, A.M. (author), Morits, J.P.J. (author), Taminiau, T.H.T. (author), van Zwet, E.J. (author), Hanson, R. (author)Entanglement distribution over quantum networks has the promise of realizing fundamentally new technologies. Entanglement between separated quantum processing nodes has been achieved on several experimental platforms in the past decade. To move toward metropolitan-scale quantum network test beds, the creation and transmission of...article 2022
- document
- Coopmans, T. (author), Knegjens, R. (author), Dahlberg, A. (author), Maier, D. (author), Nijsten, L. (author), de Oliveira Filho, J. (author), Papendrecht, M. (author), Rabbie, J. (author), Rozp?dek, F. (author), Skrzypczyk, M. (author), Wubben, L. (author), de Jong, W. (author), Podareanu, D. (author), Torres-Knoop, A. (author), Elkouss, D. (author), Wehner, S. (author) article 2021
- document
-
Dahlberg, A. (author), Skrzypczyk, M. (author), Coopmans, T. (author), Wubben, L. (author), Rozpedek, F. (author), Pompili, M. (author), Stolk, A. (author), Pawełczak, P. (author), Knegjens, R.J. (author), de Oliveira Filho, J.A. (author), Hanson, R. (author), Wehner, S. (author)Quantum communication brings radically new capabilities that are provably impossible to attain in any classical network. Here, we take the first step from a physics experiment to a fully fledged quantum internet system. We propose a functional allocation of a quantum network stack and construct the first physical and link layer protocols that...conference paper 2019
- document
-
Hermans, S. (author), Tchebotareva, A. (author), Humphreys, P. (author), Voigt, D. (author), Harmsma, P. (author), Cheng, L. (author), Verlaan, A. (author), Dijkhuizen, N. (author), de Jong, W. (author), Dréau, A. (author), Hanson, R. (author)We experimentally demonstrate the preservation of entanglement between an NV spin and a photon upon quantum frequency conversion to the Telecom band. This is a crucial step in realizing long-distance quantum networks.conference paper 2019
- document
-
Tchebotareva, A. (author), Hermans, S.L.N. (author), Humphreys, P.C. (author), Voigt, D. (author), Harmsma, P.J. (author), Cheng, L.K. (author), Verlaan, A.L. (author), Dijkhuizen, N. (author), de Jong, W. (author), Dréau, A. (author), Hanson, R. (author)We report on the realization and verification of quantum entanglement between a nitrogen-vacancy electron spin qubit and a telecom-band photonic qubit. First we generate entanglement between the spin qubit and a 637 nm photonic time-bin qubit, followed by photonic quantum frequency conversion that transfers the entanglement to a 1588 nm photon....article 2019
- document
-
Dréau, A. (author), Tcheborateva, A. (author), El Mahdaoui, A. (author), Bonato, C. (author), Hanson, R. (author)We report on the conversion to telecommunication wavelengths of single photons emitted by nitrogen-vacancy (NV) defect in diamond. By means of different frequency generation, we convert spin-selective photon at 637 nm, associated with the coherent NV zero-photon line, to the target wavelength of 1588 nm in the L-telecommunication band. The...article 2018