Friedel Oscillations in Nanoconfined $^{4}\mathrm{He}$

Author(s): Bernd Rosenow and Adrian Del Maestro One-dimensional bosonic systems, such as helium confined to nanopores, exhibit Luttinger liquid behavior characterized by density waves as collective excitations. We investigate the impact of a scattering potential on a low-dimensional quantum liquid. We consider a microscopic model of $^{4}\mathrm{… [Phys. Rev. Lett. 136, 146002] Published Wed Apr 08, 2026