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quant-ph2025

Localization and coherent control of 25 nuclear spins in Silicon Carbide

Pierre Kuna, Erik Hesselmeier-Hüttmann, Phillip Schillinger +7

Optically addressable spin defects are excellent candidate platform for quantum sensing and quantum network. Nuclear spins coupled to color centers naturally enable long lived quan…

quant-ph2025

Waveguide-integrated colour centres in silicon carbide with broadband photonic crystal reflectors for efficient readout

Marcel Krumrein, Julian M. Bopp, Timo Steidl +5

Spin-active colour centres in 4H silicon carbide are promising candidates as building blocks for quantum information applications. To increase the photon count rate of the emitters…

quant-ph2025

Converting coherence into work with a fully quantum engine

MinSik Kwon, Tobias Denzler, Rouven Maier +4

Heat engines convert thermal energy into mechanical work. We here report the experimental realization of a fully quantum engine that converts quantum coherence into work. A single…

quant-ph2025

Readout of a solid state spin ensemble at the projection noise limit

Rouven Maier, Cheng-I Ho, Andrej Denisenko +4

Spin ensembles are central to quantum science, from frequency standards and fundamental physics searches to magnetic resonance spectroscopy and quantum sensing. Their performance i…

quant-ph2025

Efficient Detection of Statistical RF Fields at High Magnetic Field with a Quantum Sensor

Rouven Maier, Cheng-I Ho, Hitoshi Sumiya +4

Nuclear magnetic resonance (NMR) spectroscopy is widely used in fields ranging from chemistry, material science to neuroscience. Nanoscale NMR spectroscopy using Nitrogen-vacancy (…

physics.optics2025

Optical levitation of fluorescent silicon carbide nanoparticles in vacuum

Seyed Khalil Alavi, Cheng-I Ho, Iuliia Neumann +4

Levitated optomechanics is an emerging field in quantum science that explores the quantum motion of mesoscopic particles levitated in a vacuum. Expanding this approach to particles…