"Solidification" in a soluble model of bosons on a one-dimensional lattice: The "Boson-Hubbard chain"

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Abstract

Lieb and Liniger's soluble model of the 1-D Bose gas is put on a lattice, becoming a "boson-Hubbard model". It remains soluble by the Bethe ansatz. When the coupling exceeds a critical value ( U 2πT)> 2√3 π, a gap is present when the density n bosons per site is 1.

Original languageEnglish (US)
Pages (from-to)281-283
Number of pages3
JournalPhysics Letters A
Volume80
Issue number4
DOIs
StatePublished - Dec 8 1980
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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