3 papers
quant-ph2026
Surface adsorbates suppress low-frequency noise for shallow nitrogen-vacancy centers
Zhiyang Yuan, David A. Fehr, Kalliope Zervas +5
Shallow nitrogen-vacancy (NV) centers in diamond are promising nanoscale quantum sensors, yet their coherence is strongly limited by surface-induced noise. Surface adsorbates are w…
cond-mat.mes-hall2025
Single Color Center Spin Coherence revealed in Optically Detected Magnetic Resonance of an Ensemble of Silicon Vacancies in SiC
David A. Fehr, Hannes Kraus, Corey J. Cochrane +1
We present a quantitative theory for simulating optically detected magnetic resonance (ODMR) measurements of optically-active spin centers using steady-state Lindblad equations. We…
quant-ph2025
Spin-State Selective Excitation in Spin Defects of Hexagonal Boron Nitride
Mohammad Abdullah Sadi, Luca Basso, David A Fehr +8
Hexagonal boron nitride (hBN) has emerged as a promising two-dimensional platform for quantum sensing, due to its optically addressable spin defects, such as the negatively charged…