| Autor: |
Fang Fang, Joshua A. Isaacs, Aaron Smull, Katinka Horn, L. Dalila Robledo-De Basabe, Yimeng Wang, Chris H. Greene, Dan M. Stamper-Kurn |
| Jazyk: |
angličtina |
| Rok vydání: |
2020 |
| Předmět: |
|
| Zdroj: |
Physical Review Research, Vol 2, Iss 3, p 032054 (2020) |
| Druh dokumentu: |
article |
| ISSN: |
2643-1564 |
| DOI: |
10.1103/PhysRevResearch.2.032054 |
| Popis: |
We observe spin transfer within a nondegenerate heteronuclear spinor atomic gas comprising a small ^{7}Li population admixed with a ^{87}Rb bath, with both elements in their F=1 hyperfine spin manifolds. Prepared in a nonequilibrium initial state, the ^{7}Li spin distribution evolves through incoherent spin-changing collisions toward a steady-state distribution. We identify and measure the cross sections of all three types of spin-dependent heteronuclear collisions, namely the spin-exchange, spin-mixing, and quadrupole-exchange interactions, and find agreement with predictions of heteronuclear ^{7}Li-^{87}Rb interactions at low energy. Moreover, we observe that the steady state of the ^{7}Li spinor gas can be controlled by varying the composition of the ^{87}Rb spin bath with which it interacts. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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