2018/02/28 by Jan F. Haase, Philipp J. Vetter, Thomas Unden +9 · 62 citations
Materials Science · Physics and Astronomy · #Diamond #Diamond and Carbon-based Materials Research #Dynamics (music) #Electron #Force Microscopy Techniques and Applications #Materials science #Physics #Population #Quantum #Quantum decoherence #Quantum mechanics #Qubit #Spin (aerodynamics) #Spin engineering #Spin polarization #Statistical physics #Theoretical and Computational Physics #quant-ph
paper · pdf · doi:10.1103/physrevlett.121.060401
published in Physical Review Letters 121(6), 060401 (American Physical Society) · 12 pages, 9 figure, including supplemental material
openalex publication_date 2018/08/09 · arxiv created 2018/08/16 · arxiv updated 2018/08/17 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We present a flexible scheme to realize non-Markovian dynamics of an electronic spin qubit, using a nitrogen-vacancy center in diamond where the inherent nitrogen spin serves as a regulator of the dynamics. By changing the population of the nitrogen spin, we show that we can smoothly tune the non-Markovianity of the electron spin's dynamics. Furthermore, we examine the decoherence dynamics induced by the spin bath to exclude other sources of non-Markovianity. The amount of collected measurement data is kept at a minimum by employing Bayesian data analysis. This allows for a precise quantification of the parameters involved in the description of the dynamics and a prediction of so far unobserved data points.