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Title: EXCITATION SPECTRUM IN MANY-BOSON SYSTEMS

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)

Authors:
Publication Date:
Research Org.:
Brown Univ., Providence
OSTI Identifier:
4000198
NSA Number:
NSA-15-026870
Resource Type:
Journal Article
Journal Name:
Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D
Additional Journal Information:
Journal Volume: Vol: 123; Other Information: Orig. Receipt Date: 31-DEC-61
Country of Publication:
Country unknown/Code not available
Language:
English
Subject:
PHYSICS; BOSONS; EXCITATION; INTERACTIONS; MANY BODY PROBLEM; MOMENTUM; SPECTRA

Citation Formats

Takano, F. EXCITATION SPECTRUM IN MANY-BOSON SYSTEMS. Country unknown/Code not available: N. p., 1961. Web. doi:10.1103/PhysRev.123.699.
Takano, F. EXCITATION SPECTRUM IN MANY-BOSON SYSTEMS. Country unknown/Code not available. doi:10.1103/PhysRev.123.699.
Takano, F. Sat . "EXCITATION SPECTRUM IN MANY-BOSON SYSTEMS". Country unknown/Code not available. doi:10.1103/PhysRev.123.699.
@article{osti_4000198,
title = {EXCITATION SPECTRUM IN MANY-BOSON SYSTEMS},
author = {Takano, F},
abstractNote = {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)},
doi = {10.1103/PhysRev.123.699},
journal = {Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D},
number = ,
volume = Vol: 123,
place = {Country unknown/Code not available},
year = {1961},
month = {7}
}