Polarization of Interacting Bosons with Spin

Eli Eisenberg, Elliott H. Lieb

Research output: Contribution to journalArticlepeer-review

73 Scopus citations


We prove that in the absence of explicit spin-dependent forces one of the ground states of interacting bosons with spin is always fully polarized. Generally, this state is degenerate with other states, but one can specify the exact degeneracy. For [Formula presented], the magnetization and zero-field susceptibility exceed that of a pure paramagnet. The results are relevant to experimental work on triplet superconductivity and condensation of atoms with spin. They eliminate the possibility, raised in some theoretical speculations, that the ground state or positive temperature state might be antiferromagnetic.

Original languageEnglish (US)
JournalPhysical review letters
Issue number22
StatePublished - 2002

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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