Fig. 4: MBD and dipole-correlated Coulomb singles (DCS) contributions to the Xe–Xe interaction inside carbon nanotubes (CNTs).

A Comparing the MBD and DCS contributions inside a (6, 6)-CNT and in gas-phase as a function of the Xe–Xe separation, R. B Effect of the different confinements of a (5, 5)- and (6, 6)-CNT on EMBD and EDCS. C Two Xe atoms (violet) encapsulated in a CNT. Total van der Waals interaction energy given as sum of EMBD and EDCS including the results when increasing the Xe polarizability by 50% (black). The inset shows the variation of the absolute value of the ratio of EDCS and EMBD.