Many-body solitonlike states of the bosonic ideal gas

R. Ołdziejewski, W. Górecki, K. Pawłowski, K. Rzaozewski

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


We study the lowest energy states for fixed total momentum, i.e., yrast states, of N bosons moving on a ring. As in the paper of Syrwid and Sacha [Phys. Rev. A 92, 032110 (2015)PLRAAN1050-294710.1103/PhysRevA.92.032110], we compare mean-field solitons with the yrast states, being the many-body Lieb-Liniger eigenstates. We show that even in the limit of vanishing interaction the yrast states possess features typical for solitons, like phase jumps and density notches. These properties are simply effects of the bosonic symmetrization and are encoded in the Dicke states hidden in the yrast states.

Original languageEnglish (US)
Article number063617
JournalPhysical Review A
Issue number6
StatePublished - Jun 19 2018
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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