---
_id: '6955'
abstract:
- lang: eng
  text: 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.
article_number: '135016'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: C.H.
  full_name: Schmickler, C.H.
  last_name: Schmickler
- first_name: H.-W.
  full_name: Hammer, H.-W.
  last_name: Hammer
- first_name: Artem
  full_name: Volosniev, Artem
  id: 37D278BC-F248-11E8-B48F-1D18A9856A87
  last_name: Volosniev
  orcid: 0000-0003-0393-5525
citation:
  ama: 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>
  apa: 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>
  chicago: 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>.
  ieee: 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.
  ista: Schmickler CH, Hammer H-W, Volosniev A. 2019. Universal physics of bound states
    of a few charged particles. Physics Letters B. 798, 135016.
  mla: 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>.
  short: C.H. Schmickler, H.-W. Hammer, A. Volosniev, Physics Letters B 798 (2019).
corr_author: '1'
date_created: 2019-10-18T18:33:32Z
date_published: 2019-11-10T00:00:00Z
date_updated: 2024-10-09T20:59:03Z
day: '10'
ddc:
- '530'
department:
- _id: MiLe
doi: 10.1016/j.physletb.2019.135016
external_id:
  arxiv:
  - '1904.00913'
  isi:
  - '000494939000086'
file:
- access_level: open_access
  checksum: d27f983b34ea7dafdf356afbf9472fbf
  content_type: application/pdf
  creator: dernst
  date_created: 2019-10-25T12:47:04Z
  date_updated: 2020-07-14T12:47:46Z
  file_id: '6974'
  file_name: 2019_PhysicsLettersB_Schmickler.pdf
  file_size: 528362
  relation: main_file
file_date_updated: 2020-07-14T12:47:46Z
has_accepted_license: '1'
intvolume: '       798'
isi: 1
language:
- iso: eng
month: '11'
oa: 1
oa_version: Published Version
publication: Physics Letters B
publication_identifier:
  issn:
  - 0370-2693
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: Universal physics of bound states of a few charged particles
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 798
year: '2019'
...