title: Effect of magnetic field on the velocity autocorrelation and the caging of particles in two-dimensional Yukawa liquids.
abstract: We investigate the effect of an external magnetic field on the velocity autocorrelation function and the "caging" of the particles in a two-dimensional strongly coupled Yukawa liquid, via numerical simulations. The influence of the coupling strength on the position of the dominant peak in the frequency spectrum of the velocity autocorrelation function confirms the onset of a joint effect of the magnetic field and strong correlations at high coupling. Our molecular dynamics simulations quantify the decorrelation of the particles' surroundings: the magnetic field is found to increase significantly the caging time, which reaches values well beyond the time scale of plasma oscillations. The observation of the increased caging time is in accordance with findings that the magnetic field decreases diffusion in similar systems.
authors.affiliation: IETP, Al Farabi Kazakh National University, 71 al Farabi Avenue, Almaty 050040, Kazakhstan.
authors.forename: K N
authors.initials: KN
authors.lastname: Dzhumagulova
authors.affiliation: IETP, Al Farabi Kazakh National University, 71 al Farabi Avenue, Almaty 050040, Kazakhstan.
authors.forename: R U
authors.initials: RU
authors.lastname: Masheeva
authors.affiliation: IETP, Al Farabi Kazakh National University, 71 al Farabi Avenue, Almaty 050040, Kazakhstan.
authors.forename: T S
authors.initials: TS
authors.lastname: Ramazanov
authors.affiliation: Institute for Solid State Physics and Optics, Wigner Research Centre for Physics, Hungarian Academy of Sciences, Konkoly-Thege Miklós Street 29-33, H-1121 Budapest, Hungary.
authors.forename: Z
authors.initials: Z
authors.lastname: Donkó