1k citations · 7.1k across the 47 of their papers we have counts for
49 papers
Quantum Heterodyne Sensing of Nuclear Spins via Double Resonance
Jonas Meinel, Minsik Kwon, Durga Dasari +5
Nanoscale nuclear magnetic resonance (NMR) signals can be measured through hyperfine interaction to paramagnetic electron sensor spins. A heterodyne approach is widely used to over…
Quantum-assisted Distortion-free audio signal sensing
Chen Zhang, Durga Dasari, Matthias Widmann +9
Quantum sensors are keeping the cutting-edge sensitivities in metrology. However, for high-sensitive measurements of arbitrary signals, limitations in linear dynamic range could in…
Quantum nonlinear spectroscopy of single nuclear spins
Jonas Meinel, Vadim Vorobyov, Ping Wang +7
Nonlinear spectroscopy is widely used for studying physical systems. Conventional nonlinear optical spectroscopy and magnetic resonance spectroscopy, which use classical probes suc…
The Transition from Quantum to Classical in weak measurements and reconstruction of Quantum Correlation
Vadim Vorobyov, Jonas Meinel, Hitoshi Sumiya +4
The ability to follow the dynamics of a quantum system in a quantitative manner is of key importance for quantum technology. Despite its central role, justifiable deduction of the…
Integrated and portable magnetometer based on nitrogen-vacancy ensembles in diamond
Felix M. Stürner, Andreas Brenneis, Thomas Buck +13
Magnetic field sensors that exploit quantum effects have shown that they can outperform classical sensors in terms of sensitivity enabling a range of novel applications in future,…
Diamond magnetometry and gradiometry towards subpicotesla DC field measurement
Chen Zhang, Farida Shagieva, Matthias Widmann +11
Nitrogen vacancy (NV) centers in diamond have developed into a powerful solid-state platform for compact quantum sensors. However, high sensitivity measurements usually come with a…
Imaging damage in steel using a diamond magnetometer
L. Q. Zhou, R. L. Patel, A. C. Frangeskou +6
We demonstrate a simple, robust and contactless method for non-destructive testing of magnetic materials such as steel. This uses a fiber-coupled magnetic sensor based on nitrogen…
Heterodyne Sensing of Microwaves with a Quantum Sensor
Jonas Meinel, Vadim Vorobyov, Boris Yavkin +5
Diamond quantum sensors are sensitive to weak microwave magnetic fields resonant to the spin transitions. However the spectral resolution in such protocols is limited ultimately by…
Efficient Conversion of Nitrogen to Nitrogen-Vacancy Centers in Diamond Particles with High-Temperature Electron Irradiation
Yuliya Mindarava, Rémi Blinder, Christian Laube +9
Fluorescent nanodiamonds containing negatively-charged nitrogen-vacancy (NV) centers are promising for a wide range of applications, such as for sensing, as fluorescence biomar…
Photoluminescence at the ground state level anticrossing of the nitrogen-vacancy center in diamond
Viktor Ivády, Huijie Zheng, Arne Wickenbrock +9
The nitrogen-vacancy center (NV center) in diamond at magnetic fields corresponding to the ground state level anticrossing (GSLAC) region gives rise to rich photoluminescence (PL)…
Quantum Metrology with Strongly Interacting Spin Systems
Hengyun Zhou, Joonhee Choi, Soonwon Choi +10
Quantum metrology makes use of coherent superpositions to detect weak signals. While in principle the sensitivity can be improved by increasing the density of sensing particles, in…
Microwave-free vector magnetometry with nitrogen-vacancy centers along a single axis in diamond
Huijie Zheng, Zhiyin Sun, Georgios Chatzidrosos +8
Sensing vector magnetic fields is critical to many applications in fundamental physics, bioimaging, and material science. Magnetic-field sensors exploiting nitrogen-vacancy (NV) ce…
Coherent electrical readout of defect spins in 4H-SiC by photo-ionization at ambient conditions
Matthias Niethammer, Matthias Widmann, Torsten Rendler +11
Quantum technology relies on proper hardware, enabling coherent quantum state control as well as efficient quantum state readout. In this regard, wide-bandgap semiconductors are an…
Robust and accurate electric field sensing with solid state spin ensembles
Julia Michl, Jakob Steiner, Andrej Denisenko +8
Electron spins in solids constitute remarkable quantum sensors. Individual defect centers in diamond were used to detect individual nuclear spins with nanometer scale resolution, a…
Zero-field magnetometry based on nitrogen-vacancy ensembles in diamond
Huijie Zheng, Jingyan Xu, Geoffrey Iwata +10
Ensembles of nitrogen-vacancy (NV) centers in diamonds are widely utilized for magnetometry, magnetic-field imaging and magnetic-resonance detection. They have not been used for ma…
Probing quantum thermalization of a disordered dipolar spin ensemble with discrete time-crystalline order
Joonhee Choi, Hengyun Zhou, Soonwon Choi +8
We investigate thermalization dynamics of a driven dipolar many-body quantum system through the stability of discrete time crystalline order. Using periodic driving of electronic s…
High-resolution spectroscopy of single nuclear spins via sequential weak measurements
Matthias Pfender, Ping Wang, Hitoshi Sumiya +8
Quantum sensors have recently achieved to detect the magnetic moment of few or single nuclear spins and measure their magnetic resonance (NMR) signal. However, the spectral resolut…
Enhancing fluorescence excitation and collection from the nitrogen-vacancy center in diamond through a micro-concave mirror
Dewen Duan, Vinaya Kumar Kavatamane, Sri Ranjini Arumugam +7
We experimentally demonstrate a simple and robust optical fibers based method to achieve simultaneously efficient excitation and fluorescence collection from Nitrogen-Vacancy (NV)…
Loop-gap Microwave Resonator for Hybrid Quantum Systems
Jason Ball, Yu Yamashiro, Hitoshi Sumiya +5
We designed a loop-gap microwave resonator for applications of spin-based hybrid quantum systems, and tested it with impurity spins in diamond. Strong coupling with ensembles of ni…
Solid-state electron spin lifetime limited by phononic vacuum modes
Thomas Astner, Johannes Gugler, Andreas Angerer +10
Longitudinal relaxation is the process by which an excited spin ensemble decays into its thermal equilibrium with the environment. In solid-state spin systems relaxation into the p…
Photoluminescence excitation spectroscopy of SiV and GeV color center in diamond
Stefan Häußler, Gergő Thiering, Andreas Dietrich +8
Color centers in diamond are important quantum emitters for a broad range of applications ranging from quantum sensing to quantum optics. Understanding the internal energy level st…
Protecting a diamond quantum memory by charge state control
Matthias Pfender, Nabeel Aslam, Patrick Simon +17
In recent years, solid-state spin systems have emerged as promising candidates for quantum information processing (QIP). Prominent examples are the Nitrogen-Vacancy (NV) center in…
Observation of discrete time-crystalline order in a disordered dipolar many-body system
Soonwon Choi, Joonhee Choi, Renate Landig +11
Understanding quantum dynamics away from equilibrium is an outstanding challenge in the modern physical sciences. It is well known that out-of-equilibrium systems can display a ric…
Nonvolatile quantum memory enables sensor unlimited nanoscale spectroscopy of finite quantum systems
Matthias Pfender, Nabeel Aslam, Hitoshi Sumiya +5
In nanoscale metrology applications, measurements are commonly limited by the performance of the sensor. Here we show that in nuclear magnetic resonance (NMR) spectroscopy measurem…