Spin-photon interface and spin-controlled photon switching in a nanobeam waveguide
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Spin-photon interface and spin-controlled photon switching in a nanobeam waveguide. / Javadi, Alisa; Ding, Dapeng; Appel, Martin Hayhurst; Mahmoodian, Sahand; Löbl, Matthias C.; Söllner, Immo; Schott, Rüdiger; Papon, Camille; Pregnolato, Tommaso; Stobbe, Søren; Midolo, Leonardo; Schröder, Tim; Wieck, Andreas D.; Ludwig, Arne; Warburton, Richard J.; Lodahl, Peter.
In: Nature Nanotechnology, Vol. 13, No. 5, 19.03.2018, p. 398-403.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Spin-photon interface and spin-controlled photon switching in a nanobeam waveguide
AU - Javadi, Alisa
AU - Ding, Dapeng
AU - Appel, Martin Hayhurst
AU - Mahmoodian, Sahand
AU - Löbl, Matthias C.
AU - Söllner, Immo
AU - Schott, Rüdiger
AU - Papon, Camille
AU - Pregnolato, Tommaso
AU - Stobbe, Søren
AU - Midolo, Leonardo
AU - Schröder, Tim
AU - Wieck, Andreas D.
AU - Ludwig, Arne
AU - Warburton, Richard J.
AU - Lodahl, Peter
PY - 2018/3/19
Y1 - 2018/3/19
N2 - Access to the electron spin is at the heart of many protocols for integrated and distributed quantum-information processing [1-4]. For instance, interfacing the spin-state of an electron and a photon can be utilized to perform quantum gates between photons [2,5] or to entangle remote spin states [6-9]. Ultimately, a quantum network of entangled spins constitutes a new paradigm in quantum optics [1]. Towards this goal, an integrated spin-photon interface would be a major leap forward. Here we demonstrate an efficient and optically programmable interface between the spin of an electron in a quantum dot and photons in a nanophotonic waveguide. The spin can be deterministically prepared with a fidelity of 96\%. Subsequently the system is used to implement a "single-spin photonic switch", where the spin state of the electron directs the flow of photons through the waveguide. The spin-photon interface may enable on-chip photon-photon gates [2], single-photon transistors [10], and efficient photonic cluster state generation [11].
AB - Access to the electron spin is at the heart of many protocols for integrated and distributed quantum-information processing [1-4]. For instance, interfacing the spin-state of an electron and a photon can be utilized to perform quantum gates between photons [2,5] or to entangle remote spin states [6-9]. Ultimately, a quantum network of entangled spins constitutes a new paradigm in quantum optics [1]. Towards this goal, an integrated spin-photon interface would be a major leap forward. Here we demonstrate an efficient and optically programmable interface between the spin of an electron in a quantum dot and photons in a nanophotonic waveguide. The spin can be deterministically prepared with a fidelity of 96\%. Subsequently the system is used to implement a "single-spin photonic switch", where the spin state of the electron directs the flow of photons through the waveguide. The spin-photon interface may enable on-chip photon-photon gates [2], single-photon transistors [10], and efficient photonic cluster state generation [11].
KW - quant-ph
KW - physics.atom-ph
KW - physics.optics
U2 - 10.1038/s41565-018-0091-5
DO - 10.1038/s41565-018-0091-5
M3 - Journal article
C2 - 29556004
VL - 13
SP - 398
EP - 403
JO - Nature Nanotechnology
JF - Nature Nanotechnology
SN - 1748-3387
IS - 5
ER -
ID: 184808431