675 citations · 2.2k across the 18 of their papers we have counts for
18 papers
Quantum communication networks with defects in silicon carbide
Philipp Sohr, Philipp Koller, Sebastian Ecker +23
Quantum communication promises unprecedented capabilities enabled by the transmission of quantum states of light. However, current implementations face severe distance limitations…
High fidelity optical readout of a nuclear spin qubit in Silicon Carbide
Erik Hesselmeier, Oliver von Berg, Pierre Kuna +7
Quantum state readout is a key requirement for a successful qubit platform. In this work we demonstrate a high fidelity quantum state readout of a V2 center nuclear spin based on a…
Measuring nuclear spin qubits by qudit-enhanced spectroscopy in Silicon Carbide
Erik Hesselmeier, Pierre Kuna, István Takács +8
Nuclear spins with hyperfine coupling to single electron spins are highly valuable quantum bits. In this work we probe and characterise the particularly rich nuclear spin environme…
Spin-optical dynamics and quantum efficiency of single V1 center in silicon carbide
Naoya Morioka, Di Liu, Öney O. Soykal +8
Color centers in silicon carbide are emerging candidates for distributed spin-based quantum applications due to the scalability of host materials and the demonstration of integrati…
Low-field microwave-free sensors using dipolar spin relaxation of quartet spin states in silicon carbide
Oscar Bulancea-Lindvall, Matthew T. Eiles, Nguyen Tien Son +2
Paramagnetic defects and nuclear spins are the major sources of magnetic field-dependent spin relaxation in point defect quantum bits. The detection of related optical signals has…
Nanofabricated and integrated colour centres in silicon carbide with high-coherence spin-optical properties
Charles Babin, Rainer Stöhr, Naoya Morioka +19
Optically addressable spin defects in silicon carbide (SiC) are an emerging platform for quantum information processing. Lending themselves to modern semiconductor nanofabrication,…
Narrow inhomogeneous distribution of spin-active emitters in silicon carbide
Roland Nagy, Durga Bhaktavatsala Rao Dasari, Charles Babin +13
Optically active solid-state spin registers have demonstrated their unique potential in quantum computing, communication and sensing. Realizing scalability and increasing applicati…
Spin-controlled generation of indistinguishable and distinguishable photons from silicon vacancy centres in silicon carbide
Naoya Morioka, Charles Babin, Roland Nagy +17
Quantum systems combining indistinguishable photon generation and spin-based quantum information processing are essential for remote quantum applications and networking. However, i…
Quantum well stabilized point defect spin qubits
Ivády, J. Davidsson, N. Delegan +10
Defect-based quantum systems in in wide bandgap semiconductors are strong candidates for scalable quantum-information technologies. However, these systems are often complicated by…
High-fidelity spin and optical control of single silicon vacancy centres in silicon carbide
Roland Nagy, Matthias Niethammer, Matthias Widmann +14
Optically interfaced spins in the solid promise scalable quantum networks. Robust and reliable optical properties have so far been restricted to systems with inversion symmetry. He…
First principles predictions of magneto-optical data for semiconductor defects: the case of divacancy defects in 4H-SiC
Joel Davidsson, Viktor Ivády, Rickard Armiento +3
Study and design of magneto-optically active single point defects in semiconductors are rapidly growing fields due to their potential in quantum bit and single photon emitter appli…
Quantum properties of dichroic silicon vacancies in silicon carbide
Roland Nagy, Matthias Widmann, Matthias Niethammer +12
The controlled generation and manipulation of atom-like defects in solids has a wide range of applications in quantum technology. Although various defect centres have displayed pro…
Isolated spin qubits in SiC with a high-fidelity infrared spin-to-photon interface
David J. Christle, Paul V. Klimov, Charles F. de las Casas +11
The divacancies in SiC are a family of paramagnetic defects that show promise for quantum communication technologies due to their long-lived electron spin coherence and their optic…
Scalable Quantum Photonics with Single Color Centers in Silicon Carbide
Marina Radulaski, Matthias Widmann, Matthias Niethammer +9
Silicon carbide is a promising platform for single photon sources, quantum bits (qubits) and nanoscale sensors based on individual color centers. Towards this goal, we develop a sc…
Vector magnetometry using silicon vacancies in 4H-SiC at ambient conditions
Matthias Niethammer, Matthias Widmann, Sang-Yun Lee +6
Point defects in solids promise precise measurements of various quantities. Especially magnetic field sensing using the spin of point defects has been of great interest recently. W…
Characterization of the nitrogen split interstitial defect in wurtzite aluminum nitride using density functional theory
A. Szállás, K. Szász, X. T. Trinh +3
We carried out Heyd-Scuseria-Ernzerhof hybrid density functional theory plane wave supercell calculations in wurtzite aluminum nitride in order to characterize the geometry, format…
Coherent control of single spins in silicon carbide at room temperature
Matthias Widmann, Sang-Yun Lee, Torsten Rendler +15
Spins in solids are cornerstone elements of quantum spintronics. Leading contenders such as defects in diamond, or individual phosphorous dopants in silicon have shown spectacular…
Clustering of vacancy defects in high-purity semi-insulating SiC
R. Aavikko, K. Saarinen, F. Tuomisto +3
Positron lifetime spectroscopy was used to study native vacancy defects in semi-insulating silicon carbide. The material is shown to contain (i) vacancy clusters consisting of 4--5…