Thumbnail
Access Restriction
Open

Author Takano, F.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PHYSICS ♦ BOSONS ♦ EXCITATION ♦ INTERACTIONS ♦ MANY BODY PROBLEM ♦ MOMENTUM ♦ SPECTRA
Abstract When only two-bcdy correlations are fully taken into account, there appears an energy gap in the excitation spectrum for many-boson systems as shown by Girardeau and Arnowitt and confirmed by Wentzel. This energy gap is shown to disappear and the spectrum to become phononlike again and proportional to the momentum for small momentum, if we construct the eigenmodes of excitations (collective excitations), taking into consideration appropriate higher-order terms. (auth)
ISSN 0031899X
Educational Use Research
Learning Resource Type Article
Publisher Date 1961-07-15
Publisher Department Brown Univ., Providence
Journal Physical Review
Volume Number 123
Organization Brown Univ., Providence


Open content in new tab

   Open content in new tab