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pro vyhledávání: '"Gräßer, Timo"'
Publikováno v:
Solid State Nuclear Magnetic Resonance 132, 101936 (2024)
A recently developed dynamic mean-field theory for disordered spins (spinDMFT) is shown to capture the spin dynamics of nuclear spins very well. The key quantities are the spin autocorrelations. In order to compute the free induction decay (FID), pai
Externí odkaz:
http://arxiv.org/abs/2403.10465
Publikováno v:
Phys. Rev. Research 5, 043191 (2023)
Dipolar spin ensembles with random spin positions attract much attention currently because they help to understand decoherence as it occurs in solid state quantum bits in contact with spin baths. Also, these ensembles are systems which may show many-
Externí odkaz:
http://arxiv.org/abs/2307.14188
Publikováno v:
Phys. Rev. B 107, 125421 (2023)
The central spin model has a wide applicability, it is ideally suited to describe a small quantum system, for instance a quantum bit, in contact to a bath of spins, e.g., nuclear spins, or other small quantum systems in general. According to previous
Externí odkaz:
http://arxiv.org/abs/2301.06346
Publikováno v:
Phys. Rev. Research 3, 043168 (2021)
A dynamic mean-field theory for spin ensembles (spinDMFT) at infinite temperatures on arbitrary lattices is established. The approach is introduced for an isotropic Heisenberg model with $S = \tfrac12$ and external field. For large coordination numbe
Externí odkaz:
http://arxiv.org/abs/2107.07821
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