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quant-ph2026
Optimized Dynamical Decoupling for Spin Ensembles with Large Inhomogeneities
Rajan Paul, Genko Genov, Oliver Schmid +4
Spin ensembles show increasing promise for highly efficient quantum sensing and quantum technologies. However, protecting their coherent properties remains a significant challenge.…
quant-ph2025
Robust gigahertz-range ac magnetometry with an ensemble of NV centers in diamond using concatenated continuous dynamical decoupling
Takuya Kitamura, Genko Genov, Alon Salhov +5
Sub-picotesla level magnetometry has been demonstrated using negatively-charged nitrogen-vacancy (NV) centers in diamond by increasing the number of spins simultaneously used for s…
quant-ph2025
A near-quantum-limited diamond maser amplifier operating at millikelvin temperatures
Morihiro Ohta, Ching-Ping Lee, Vincent P. M. Sietses +10
Current microwave quantum technologies require the amplification of weak signals with minimal added noise at millikelvin temperatures. To date, this stringent requirement has been…