Extracting nonlocal interpolaron interactions from collisional dynamics

Junichi Takahashi, Hiroyuki Tajima, Eiji Nakano, Kei Iida

Research output: Contribution to journalArticlepeer-review


This study develops an experimental method of deducing the profile of interaction induced between impurities in a trapped gas of ultracold Fermi or Bose atoms, which are often referred to as Fermi or Bose polarons. In this method, we consider a two-body Fermi or Bose polaron collision experiment in which impurities and atoms interact only weakly. Numerical simulations of the quantum dynamics reveal the possibility to obtain information regarding the nonlocal-induced interaction between two polarons from a measured profile of the polaron wave packet at several snapshots. This is because the potential of the induced interaction is well balanced by the quantum potential whenever the WKB approximation for the relevant Schrödinger equation is applicable.

Original languageEnglish
Article number043334
JournalPhysical Review A
Issue number4
Publication statusPublished - 2021 Apr

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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