Theory of collective motion of interacting gas of polyvalent Hg atoms at 3.0, 6.3 and 9.0 particles per nm3

Microdynamics of a monoatomic liquid metal

“…The theory now yields much better realistic overall results of Sðj; xÞ and satisfies its first three sum rules. A recent modification in the theory yields the detailed Sðj; xÞ which is in reasonable quantitative agreement with the corresponding experimental results [10][11][12][13][14][15]. The main argument is to take more realistic description of F s ðj; tÞ by making the diffusion coefficient frequency dependent.…”

“…This is achieved not through a model of F s (j, t) which would introduce several free parameters but by making the diffusion coefficient frequency (x) dependent [10]. This modified microdynamical theory has been successfully used to explain S(j, x) of liquid metals (Cs and Rb) [10], expanded liquid Rb [11], liquid and gaseous fluid Ar [12], polyvalent liquid metal Al [13] and recently highly correlated polyvalent liquid Hg [14] and weakly correlated gaseous Hg [15]. Very recently the collective dynamics of molecular nanofluid of fullerenes [16] has been predicted using the same theory.…”

Pronounced variation in the collective dynamics of highly correlated lightest liquid alkali metal: Lithium

“…Such a development in the theory leads to what is a semi-quantitative description of S(κ, ω) in the earlier theory to quantitative description of observed S(κ, ω). This modified theory has been used to explain the dynamical structure factor, of fluids with different interactions and varying degree of correlations: liquid metals (Cs and Rb) [13], expanded liquid Rb [14], liquid and gaseous fluid Ar [15], polyvalent liquid metal Al [16], highly correlated polyvalent liquid Hg [17] and weakly correlated gaseous Hg [18] and very recently strongly correlated liquid Na [19].…”

“…However, to take into account the all time behaviour of F s κ → ; t ranging from t → 0 to t → ∞, the self diffusion coefficient, D, occurring in expression (2) has been made ω-dependent and thus, it reduces to the following expression for dynamical structure factor [13][14][15][16][17][18][19]:…”