Exceptional sensitivity near the bistable transition point of a hybrid quantum system
Li, A. et al. Exceptional points and non-Hermitian photonics at the nanoscale. Nat. Nanotechnol. 18, 706–720 (2023). Article …
Cavity-enhanced spectroscopy in the deep cryogenic regime for quantum sensing and metrology
Gianfrani, L., Hu, S.-M. & Ubachs, W. Advances in cavity-enhanced methods for high precision molecular spectroscopy and test…
Quantum-limited metrology of macroscopic spin ensembles
Degen, C. L., Reinhard, F. & Cappellaro, P. Quantum sensing. Rev. Mod. Phys. 89, 035002 (2017). Article ADS …
Entanglement-assisted non-local optical interferometry in a quantum network
Experimental setup The experiment encompasses two labs, each containing one station with an SiV inside a dilution refrigerator…
Sensing with discrete time crystals
Principle: prethermal DTC lifetime extension by a.c. fields The system consists of a diamond crystal with 13C nuclear…
Multi-qubit nanoscale sensing with entanglement as a resource
Rovny, J. et al. Nanoscale diamond quantum sensors for many-body physics. Nat. Rev. Phys. 6, 753–768 (2024). Article …
Measurement of correlated charge noise in superconducting qubits at an underground facility
Controlling the radiation environment of superconducting qubits The qubit chip was relocated from the Earth’s surface at Madison,…
Quantum-amplified global-phase spectroscopy on an optical clock transition
Ludlow, A. D., Boyd, M. M., Ye, J., Peik, E. & Schmidt, P. O. Optical atomic clocks. Rev.…
Spin squeezing in an ensemble of nitrogen–vacancy centres in diamond
Wineland, D. J., Bollinger, J. J., Itano, W. M., Moore, F. L. & Heinzen, D. J. Spin squeezing…
A fluorescent-protein spin qubit | Nature
Protein expression and purification In Figs. 1–4 and 5d, we measured EYFP with the mutations S2insL/S65G/V68L/S72A/T203Y/H231L of avGFP, with…
A unified realization of electrical quantities from the quantum International System of Units
Mills, I. M., Mohr, P. J., Quinn, T. J., Taylor, B. N. & Williams, E. R. Redefinition of…
Demonstration of a tunable non-Hermitian nonlinear microwave dimer
Figure 1 a illustrates the 3D microwave cavities used in our system, each with four ports featuring adjustable coupling…