301 citations · 2.3k across the 29 of their papers we have counts for
29 papers
Quantum Electrometer for Time-Resolved Material Science at the Atomic Lattice Scale
Gregor Pieplow, Cem Güney Torun, Charlotta Gurr +5
The detection of individual charges plays a crucial role in fundamental material science and the advancement of classical and quantum high-performance technologies that operate wit…
Coherent microwave, optical, and mechanical quantum control of spin qubits in diamond
Laura Orphal-Kobin, Cem Güney Torun, Julian M. Bopp +2
Diamond has emerged as a highly promising platform for quantum network applications. Color centers in diamond fulfill the fundamental requirements for quantum nodes: they constitut…
Diamond-on-chip infrared absorption magnetic field camera
Julian M. Bopp, Hauke Conradi, Felipe Perona +11
Integrated and fiber-packaged magnetic field sensors with a sensitivity sufficient to sense electric pulses propagating along nerves in life science applications and with a spatial…
SUPER and femtosecond spin-conserving coherent excitation of a tin-vacancy color center in diamond
Cem Güney Torun, Mustafa Gökçe, Thomas K. Bracht +11
The coherent excitation of an optically active spin system is one of the key elements in the engineering of a spin-photon interface. Using the novel SUPER scheme, we coherently con…
Efficient Microwave Spin Control of Negatively Charged Group-IV Color Centers in Diamond
Gregor Pieplow, Mohamed Belhassen, Tim Schröder
In this work, we provide a comprehensive overview of the microwave-induced manipulation of electronic spin states in negatively charged group-IV color centers in diamond with a par…
Resource-efficient fault-tolerant one-way quantum repeater with code concatenation
Kah Jen Wo, Guus Avis, Filip Rozpędek +6
One-way quantum repeaters where loss and operational errors are counteracted by quantum error correcting codes can ensure fast and reliable qubit transmission in quantum networks.…
'Sawfish' Photonic Crystal Cavity for Near-Unity Emitter-to-Fiber Interfacing in Quantum Network Applications
Julian M. Bopp, Matthias Plock, Tim Turan +3
Photon loss is one of the key challenges to overcome in complex photonic quantum applications. Photon collection efficiencies directly impact the amount of resources required for m…
Optically coherent nitrogen-vacancy defect centers in diamond nanostructures
Laura Orphal-Kobin, Kilian Unterguggenberger, Tommaso Pregnolato +6
Optically active solid-state spin defects have the potential to become a versatile resource for quantum information processing applications. Nitrogen-vacancy defect centers (NV) in…
Optimized diamond inverted nanocones for enhanced color center to fiber coupling
Cem Güney Torun, Philipp-Immanuel Schneider, Martin Hammerschmidt +3
Nanostructures can be used for boosting the light outcoupling of color centers in diamond; however, the fiber coupling performance of these nanostructures is rarely investigated. H…
Coherent Interactions Between Silicon-Vacancy Centers in Diamond
Matthew W. Day, Kelsey M. Bates, Christopher L. Smallwood +5
We report coherent interactions within an ensemble of silicon-vacancy color centers in diamond. The interactions are ascribed to resonant dipole-dipole coupling. Further, we demons…
Using silicon-vacancy centers in diamond to probe the full strain tensor
Kelsey M. Bates, Matthew W. Day, Christopher L. Smallwood +5
An ensemble of silicon vacancy centers in diamond (\ce{SiV-}) is probed using two coherent spectroscopy techniques. Two main distinct families of \ce{SiV-} centers are identified u…
Roadmap for gallium arsenide spin qubits
Ferdinand Kuemmeth, Hendrik Bluhm
Gate-defined quantum dots in gallium arsenide (GaAs) have been used extensively for pioneering spin qubit devices due to the relative simplicity of fabrication and favourable elect…
Hidden Silicon-Vacancy Centers in Diamond
Christopher L. Smallwood, Ronald Ulbricht, Matthew W. Day +7
We characterize a high-density sample of negatively charged silicon-vacancy (SiV) centers in diamond using collinear optical multidimensional coherent spectroscopy. By comparin…
Interchromophoric Interactions Determine the Maximum Brightness Density in DNA Origami Structures
Tim Schröder, Max B. Scheible, Florian Steiner +2
An ideal point light source is as small and as bright as possible. For fluorescent point light sources, homogeneity of the light sources is important as well as that the fluorescen…
One-way quantum repeater based on near-deterministic photon-emitter interfaces
Johannes Borregaard, Hannes Pichler, Tim Schöder +3
We propose a novel one-way quantum repeater architecture based on photonic tree-cluster states. Encoding a qubit in a photonic tree-cluster protects the information from transmissi…
Individual Control and Readout of Qubits in a Sub-Diffraction Volume
Eric Bersin, Michael Walsh, Sara L. Mouradian +3
Medium-scale ensembles of coupled qubits offer a platform for near-term quantum technologies including computing, sensing, and the study of mesoscopic quantum systems. Atom-like em…
Efficient Extraction of Light from a Nitrogen-Vacancy Center in a Diamond Parabolic Reflector
Noel H. Wan, Brendan J. Shields, Donggyu Kim +6
Quantum emitters in solids are being developed for a range of quantum technologies, including quantum networks, computing, and sensing. However, a remaining challenge is the poor p…
Spin-photon interface and spin-controlled photon switching in a nanobeam waveguide
Alisa Javadi, Dapeng Ding, Martin Hayhurst Appel +13
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 el…
A bright nanowire single photon source based on SiV centers in diamond
L. Marseglia, K. Saha, A. Ajoy +8
The practical implementation of many quantum technologies relies on the development of robust and bright single photon sources that operate at room temperature. The negatively char…
Scalable Focused Ion Beam Creation of Nearly Lifetime-Limited Single Quantum Emitters in Diamond Nanostructures
Tim Schröder, Matthew E. Trusheim, Michael Walsh +12
The controlled creation of defect center---nanocavity systems is one of the outstanding challenges for efficiently interfacing spin quantum memories with photons for photon-based e…
Bright Room-Temperature Single Photon Emission from Defects in Gallium Nitride
Amanuel M. Berhane, Kwang-Yong Jeong, Zoltán Bodrog +8
Single photon emitters play a central role in many photonic quantum technologies. A promising class of single photon emitters consists of atomic color centers in wide-bandgap cryst…
Efficient Photon Coupling from a Diamond Nitrogen Vacancy Centre by Integration with Silica Fibre
Rishi N. Patel, Tim Schröder, Noel Wan +4
A central goal in quantum information science is to efficiently interface photons with single optical modes for quantum networking and distributed quantum computing. Here, we intro…
Generation of Ensembles of Individually Resolvable Nitrogen Vacancies Using Nanometer-Scale Apertures in Ultrahigh-Aspect Ratio Planar Implantation Masks
Igal Bayn, Edward H. Chen, Matthew E. Trusheim +9
A central challenge in developing magnetically coupled quantum registers in diamond is the fabrication of nitrogen vacancy (NV) centers with localization below ~20 nm to enable fas…
Three megahertz photon collection rate from an NV center with millisecond spin coherence
Luozhou Li, Edward H. Chen, Jiabao Zheng +7
Efficient collection of the broadband fluorescence of the diamond nitrogen vacancy center is essential for a range of applications in sensing, on-demand single photon generation, a…