Physics:Spin-destruction collision
From HandWiki
In atomic physics, a spin-destruction (or spin-disorientation) collision is a physical impact where the spin angular momentum of an atom is irretrievably scrambled.
This type of collision can be a significant spin relaxation mechanism for polarized alkali metal vapor. In particular, the relaxation rate of alkali metal atoms in SERF atomic magnetometers is dominated by spin-destruction collisions.
| σsd,self | σsd,He | σsd,Ne | σsd,N2 | ||||
|---|---|---|---|---|---|---|---|
| K | 1 × 10−18 cm2[2] | 8 × 10−25 cm2[3] | |||||
| Rb | 9 × 10−18 cm2[3] | 9 × 10−24 cm2[3] | 5.2 × 10−23 cm2[4] | 1 × 10−22 cm2[5] | |||
| Cs | 2 × 10−16 cm2[6] | 3 × 10−23 cm2[7] | 6 × 10−22 cm2[7] |
References
- ↑ Allred, J. C., Lyman, R. N., Kornack, T. W., Romalis, M. V. (2002). "High-Sensitivity Atomic Magnetometer Unaffected by Spin-Exchange Relaxation". Physical Review Letters 89 (13): 130801. doi:10.1103/PhysRevLett.89.130801. PMID 12225013. Bibcode: 2002PhRvL..89m0801A.
- ↑ E. Vliegen, S. Kadlecek, L. W. Anderson, T. G. Walker, C. J. Erickson and W. Happer (2001). "Faraday rotation density measurements of optically thick alkali metal vapors". Nuclear Instruments and Methods in Physics Research A 460 (2–3): 444–450. doi:10.1016/S0168-9002(00)01061-5. Bibcode: 2001NIMPA.460..444V.
- ↑ 3.0 3.1 3.2 A. Ben-Amar Baranga; S. Appelt; M. V. Romalis; C. J. Erickson; A. R. Young; G. D. Cates; W. Happer (1998). "Faraday rotation density measurements of optically thick alkali metal vapors". Physical Review Letters 80 (13): 2801–2804. doi:10.1103/PhysRevLett.80.2801. Bibcode: 1998PhRvL..80.2801B.
- ↑ W. Franzen (1959). "Spin Relaxation of Optically Aligned Rubidium Vapor". Physical Review 115 (4): 850–856. doi:10.1103/PhysRev.115.850. Bibcode: 1959PhRv..115..850F.
- ↑ M. E. Wagshul; T. E. Chupp (1994). "Laser optical pumping of high-density Rb in polarized 3He targets". Physical Review A 49 (5): 3854–3869. doi:10.1103/PhysRevA.49.3854. PMID 9910682. Bibcode: 1994PhRvA..49.3854W.
- ↑ N. D. Bhaskar; J. Pietras; J. Camparo; W. Happer; J. Liran (1980). "Spin Destruction in Collisions between Cesium Atoms". Physical Review Letters 44 (14): 930–933. doi:10.1103/PhysRevLett.44.930. Bibcode: 1980PhRvL..44..930B.
- ↑ 7.0 7.1 N. Beverini; P. Minguzzi; F. Strumia (1971). "Foreign-Gas-Induced Cesium Hyperfine Relaxation". Physical Review A 4 (2): 550–555. doi:10.1103/PhysRevA.4.550. Bibcode: 1971PhRvA...4..550B.
 |  |
