期刊
PHYSICAL REVIEW LETTERS
卷 125, 期 14, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.125.143401
关键词
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资金
- CNRS
- Universite Sorbonne Paris Cite (USPC)
- Conseil Regional d'Ile-de-France under Sirteq Agency
- Indo-French Centre for the Promotion of Advanced Research-CEFIPRA [LORIC5404-1]
- Agence Nationale de la Recherche [ANR-18-CE47-0004]
- QuantERA ERA-NET (MAQS project)
- AFOSR [FA9550-18-1-0319]
- DARPA DRINQs grant
- ARO single investigator Grant [W911NF-19-1-0210]
- NSF [PHY1820885]
- NSF JILA-PFC [PHY-1734006]
- NIST
We report on measurements of the dynamics of the total magnetization and spin populations in an almost unit-filled lattice system comprising about 10(4) spin S = 3 chromium atoms, under the effect of dipolar interactions. The observed spin population dynamics is unaffected by the use of a spin echo and fully consistent with numerical simulations of the S = 3 XXZ spin model. On the contrary, the observed magnetization decays slower than in simulations and, surprisingly, reaches a small but nonzero asymptotic value within the longest timescale. Our findings show that spin coherences are sensitive probes to systematic effects affecting quantum many-body behavior that cannot be diagnosed by merely measuring spin populations.
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