Petr Siyushev

Photoelectric Imaging of the Optically Inactive Charge State of Silicon‐Vacancy Defects in Diamond

Ilia Chuprina, Gergő Thiering, Emilie Bourgeois, Anna Ermakova et autres

The investigation of optically active point defects in wide-bandgap semiconductors is driven by the development of solid-state quantum technologies. Such atom-like defects are used for the realization of quantum registers and quantum sensors. Reproducible engineering of even well-established defects with predictable properties …

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Photoelectrical readout and Ramsey interferometry of single shallowly implanted NV centers in diamond

Ilia Chuprina, Christoph Findler, Johannes Lang, Petr Siyushev et autres

Photoelectrical readout of the electronic spin state of the nitrogen-vacancy (NV) center in diamond is attracting significant interest due to the numerous advantages it possesses compared with conventional fluorescence readout. The higher charge carrier rate compared to the photon rate and the …

Impact of Photoelectric Readout Noise on Magnetic Field Sensitivity of NV Centers in Diamond

Ilia Chuprina, Genko Genov, Christoph Findler, Johannes Lang et autres

Nitrogen-vacancy (NV) centers in diamond are of great interest for nano- and macro-scale magnetic field sensing. Most sensing protocols rely on conventional optical readout, which is limited by photon shot noise. The recently developed photoelectrical (PE) readout of the NV center electron …

Discovery of ST2 centers in natural and CVD diamond

Jonas Foglszinger, Andrej Denisenko, G. V. Astakhov, Lev Kazak et autres

Abstract The ST2 center is an optically addressable point defect in diamond that facilitates spin initialization and readout at room temperature. However, while this study presents the discovery of photostable ST2 centers first observed in a natural diamond and provides a reliable …

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Discovery of ST2 centers in natural and CVD diamond

Jonas Foglszinger, Andrej Denisenko, Georgy V. Astakhov, Lev Kazak et autres

The ST2 center is an optically addressable point defect in diamond that facilitates spin initialization and readout at room temperature. However, while this study presents the discovery of photostable ST2 centers first observed in a natural diamond and provides a reliable technique …

Color centers in diamond for quantum photonics

Petr Siyushev

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List of contributors

Adnan Ali Afridi, Mario Agio, Paul E. Barclay, Marianne Etzelmüller Bathen et autres

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Discovery of ST2 centers in natural and CVD diamond

Jonas Foglszinger, Andrej Denisenko, G. V. Astakhov, Lev Kazak et autres

The ST2 center is an optically addressable point defect in diamond that facilitates spin initialization and readout. However, while this study presents the discovery of ST2 centers first observed in a natural diamond and provides a reliable technique for artificially creating them, …

Reducing inhomogeneous broadening of spin and optical transitions of nitrogen-vacancy centers in high-pressure, high-temperature diamond

Rémi Blinder, Yuliya Mindarava, Thai Hien Tran, Ali S. Momenzadeh et autres

Abstract With their optical addressability of individual spins and long coherence time, nitrogen-vacancy (NV) centers in diamond are often called “atom-like solid spin-defects”. As observed with trapped atomic ions, quantum interference mediated by indistinguishable photons was demonstrated between remote NV centers. In …

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Transform-Limited Photon Emission from a Lead-Vacancy Center in Diamond above 10 K

Peng Wang, Lev Kazak, Katharina Senkalla, Petr Siyushev et autres

Transform-limited photon emission from quantum emitters is essential for high-fidelity entanglement generation. In this Letter, we report the coherent optical property of a single negatively charged lead-vacancy (PbV) center in diamond. Photoluminescence excitation measurements reveal stable fluorescence with a linewidth of 39 …

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Germanium Vacancy in Diamond Quantum Memory Exceeding 20 ms

Katharina Senkalla, Genko T. Genov, Mathias H. Metsch, Petr Siyushev et autres

Negatively charged group-IV defects in diamond show great potential as quantum network nodes due to their efficient spin-photon interface. However, reaching sufficiently long coherence times remains a challenge. In this work, we demonstrate coherent control of germanium vacancy center (GeV) at millikelvin …

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Germanium Vacancy in Diamond Quantum Memory Exceeding 20 ms

Katharina Senkalla, Genko T. Genov, Mathias H. Metsch, Petr Siyushev et autres

Negatively charged group-IV defects in diamond show great potential as quantum network nodes due to their efficient spin-photon interface. However, reaching sufficiently long coherence times remains a challenge. In this work, we demonstrate coherent control of germanium vacancy center (GeV) at millikelvin …

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