article published yes C.H. Schmickler author H.-W. Hammer author Artem Volosniev author 37D278BC-F248-11E8-B48F-1D18A9856A870000-0003-0393-5525 MiLe department We study few-body bound states of charged particles subject to attractive zero-range/short-range plus repulsive Coulomb interparticle forces. The characteristic length scales of the system at zero energy are set by the Coulomb length scale D and the Coulomb-modified effective range r eff. We study shallow bound states of charged particles with D >> r eff and show that these systems obey universal scaling laws different from neutral particles. An accurate description of these states requires both the Coulomb-modified scattering length and the effective range unless the Coulomb interaction is very weak (D -> ). Our findings are relevant for bound states whose spatial extent is significantly larger than the range of the attractive potential. These states enjoy universality – their character is independent of the shape of the short-range potential. https://research-explorer.ista.ac.at/download/6955/6974/2019_PhysicsLettersB_Schmickler.pdf application/pdfno https://creativecommons.org/licenses/by/4.0/ Elsevier2019 eng 0370-2693 1904.00913 00049493900008610.1016/j.physletb.2019.135016 798 Schmickler CH, Hammer H-W, Volosniev A. Universal physics of bound states of a few charged particles. <i>Physics Letters B</i>. 2019;798. doi:<a href="https://doi.org/10.1016/j.physletb.2019.135016">10.1016/j.physletb.2019.135016</a> Schmickler CH, Hammer H-W, Volosniev A. 2019. Universal physics of bound states of a few charged particles. Physics Letters B. 798, 135016. C.H. Schmickler, H.-W. Hammer, A. Volosniev, Physics Letters B 798 (2019). Schmickler, C. H., Hammer, H.-W., &#38; Volosniev, A. (2019). Universal physics of bound states of a few charged particles. <i>Physics Letters B</i>. Elsevier. <a href="https://doi.org/10.1016/j.physletb.2019.135016">https://doi.org/10.1016/j.physletb.2019.135016</a> Schmickler, C.H., H.-W. Hammer, and Artem Volosniev. “Universal Physics of Bound States of a Few Charged Particles.” <i>Physics Letters B</i>. Elsevier, 2019. <a href="https://doi.org/10.1016/j.physletb.2019.135016">https://doi.org/10.1016/j.physletb.2019.135016</a>. C. H. Schmickler, H.-W. Hammer, and A. Volosniev, “Universal physics of bound states of a few charged particles,” <i>Physics Letters B</i>, vol. 798. Elsevier, 2019. Schmickler, C. H., et al. “Universal Physics of Bound States of a Few Charged Particles.” <i>Physics Letters B</i>, vol. 798, 135016, Elsevier, 2019, doi:<a href="https://doi.org/10.1016/j.physletb.2019.135016">10.1016/j.physletb.2019.135016</a>. 69552019-10-18T18:33:32Z2024-10-09T20:59:03Z