Published October 1, 2004 | Version v1
Journal article Metadata-only

The quartic oscillator: a non-perturbative study by continuous unitary transformations

Creators

  • 1. Institut fuer Theoretische Physik, Universitaet zu Koeln, Zuelpicher Str. 77, 50937 Cologne (Germany)

Description

The quantum quartic oscillator is investigated in order to test the many-body technique of the continuous unitary transformations. The quartic oscillator is sufficiently simple to allow a detailed study and comparison of various approximation schemes. Due to its simplicity, it can be used as a pedagogical introduction to the unitary transformations. Both the spectrum and the spectral weights are discussed

Availability note (English)

Available online at http://stacks.iop.org/0305-4470/37/9275/a4_39_014.pdf or at the Web site for the Journal of Physics. A, Mathematical and General (ISSN 1361-6447) http://www.iop.org/

Additional details

Identifiers

URL
http://stacks.iop.org/0305-4470/37/9275/a4_39_014.pdf; http://www.iop.org/;
DOI
10.1088/0305-4470/37/39/014;
PII
S0305-4470(04)80445-1;

Publishing Information

Journal Title
Journal of Physics. A, Mathematical and General
Journal Volume
37
Journal Issue
39
Journal Page Range
p. 9275-9294
ISSN
0305-4470
CODEN
JPHAC5

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
36029484
Subject category
S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
COMPARATIVE EVALUATIONS; MANY-BODY PROBLEM; OSCILLATORS; SPECTRA; TRANSFORMATIONS
Descriptors DEC
ELECTRONIC EQUIPMENT; EQUIPMENT; EVALUATION