Bannasch, G.Castro, J.McQuillen, P.Pohl, T.Killian, T.C.2012-11-262012-11-262012Bannasch, G., Castro, J., McQuillen, P., et al.. "Velocity Relaxation in a Strongly Coupled Plasma." <i>Physical Review Letters,</i> 109, (2012) American Physical Society: 185008. http://dx.doi.org/10.1103/PhysRevLett.109.185008.https://hdl.handle.net/1911/68400Collisional relaxation of Coulomb systems is studied in the strongly coupled regime. We use an optical pump-probe approach to manipulate and monitor the dynamics of ions in an ultracold neutral plasma, which allows direct measurement of relaxation rates in a regime where common Landau-Spitzer theory breaks down. Numerical simulations confirm the experimental results and display non-Markovian dynamics at early times.engArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.Journal articlehttp://dx.doi.org/10.1103/PhysRevLett.109.185008