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Thomas Pohl

Interactions between Rydberg excitons in Cu2O

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  • Valentin Walther
  • ,
  • Sjard Ole Krueger, Univ Rostock, University of Rostock, Inst Phys
  • ,
  • Stefan Scheel, Univ Rostock, University of Rostock, Inst Phys
  • ,
  • Thomas Pohl

Highly excited states of excitons in cuprous oxide have recently been observed at a record quantum number of up to n = 25. Here, we evaluate the long-range interactions between pairs of Rydberg excitons in Cu2O, which are due to direct Coulomb forces rather than short-range collisions typically considered for ground-state excitons. A full numerical analysis is supplemented by the van der Waals asymptotics at large exciton separations, including the angular dependence of the potential surfaces.

Original languageEnglish
Article number165201
JournalPhysical Review B
Number of pages6
Publication statusPublished - 8 Oct 2018

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