Jan Engels

1 Introduction The negatively charged nitrogen vacancy (NV − $^{-}$ ) center in diamond, in which two carbon atoms are replaced by one nitrogen atom and a vacant site, has been under intense investigation in the past years due to its unique spin properties,[1-4] among which a long room temperature coherence time is the most prominent one which makes NV-doped diamond a hot candidate material for quantum sensing and even room temperature quantum computing.[5] If the NVs’ unique properties are...

1 Introduction The negatively charged nitrogen vacancy (NV − $^{-}$ ) center in diamond, in which two carbon atoms are replaced by one nitrogen atom and a vacant site, has been under intense investigation in the past years due to its unique spin properties,[1-4] among which a long room temperature coherence time is the most prominent one which makes NV-doped diamond a hot candidate material for quantum sensing and even room temperature quantum computing.[5] If the NVs’ unique properties are...

SPEARFISH, S.D. - Still wondering where to take mom for Mother’s Day this Sunday? How about a trip down Americana memory lane. The Spearfish Matthew’s Opera House invites you and mom to come enjoy Dave Martinson’s Big Band at the historic 1906 opera house on Main Street in  Spearfish beginning at 2 p.m. According to Joanna Mechaley, interim director of the Matthew’s Opera House, this is the perfect event for mom to don her spring attire and enjoy the tunes of a timeless era.