Relaxation of the collective magnetization of a dense 3D array of interacting dipolar S=3 atoms
We report on measurements of the dynamics of the collective spin length (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 t...
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| description | We report on measurements of the dynamics of the collective spin length (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 spin length 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. |
| doi_str_mv | 10.48550/arxiv.2005.13487 |
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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 spin length 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.</description><identifier>EISSN: 2331-8422</identifier><identifier>DOI: 10.48550/arxiv.2005.13487</identifier><language>eng</language><publisher>Ithaca: Cornell University Library, arXiv.org</publisher><subject>Chromium ; Computer simulation ; Decay rate ; Magnetization ; Mathematical models ; Physics - Quantum Gases ; Populations ; Spin dynamics</subject><ispartof>arXiv.org, 2020-05</ispartof><rights>2020. 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| subjects | Chromium Computer simulation Decay rate Magnetization Mathematical models Physics - Quantum Gases Populations Spin dynamics |
| title | Relaxation of the collective magnetization of a dense 3D array of interacting dipolar S=3 atoms |
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