Decoherence of a singlet-triplet superposition state under dipolar interactions of an uncorrelated environment

  title={Decoherence of a singlet-triplet superposition state under dipolar interactions of an uncorrelated environment},
  author={Patrick Vorndamme and Juergen Schnack},
  journal={Physical Review B},
Recently it was shown that by means of an STM it is experimentally possible to stimulate clock transitions between the singlet and the non-magnetic triplet state of a Heisenberg-coupled spin dimer (Bae et al., Science Advances 4, eaau4159). This leads to more strongly protected clock transitions while ordinary ones only provide first-order protection against magnetic noise. However, large decoherence times of clock like states normally refer to ensembles of spins which do not dephase. In the… 

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