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Observation of nonclassical measurement statistics induced by a coherent spin environment

At a Glance

Section titled ā€œAt a Glanceā€
MetadataDetails
Publication Date2019-08-08
JournalPhysical review. A/Physical review, A
AuthorsD. D. Bhaktavatsala Rao, Sen Yang, Stefan Jesenski, Emre Tekin, Florian Kaiser
InstitutionsUniversity of Stuttgart, Center for Integrated Quantum Science and Technology
Citations10

Abstract

Section titled ā€œAbstractā€

We demonstrate the role of measurement back action of a coherent spin environment in the dynamics of a spin (qubit) coupled to it, by inducing nonclassical (quantum random walk-like) statistics on its measurement trajectory. We show how the long lifetime of the spin bath correlates with measurements of the qubit over many repetitions. We use nitrogen vacancy centers in diamond as a model system and projective single-shot readout of the electron spin at low temperatures to simulate these effects. The employed measurement control could be used for purification of spin ensembles to desired quantum states.

Tech Support

Section titled ā€œTech Supportā€

Original Source

Section titled ā€œOriginal Sourceā€

References

Section titled ā€œReferencesā€
  1. 2010 - Quantum Measurement and Control

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