Evidence for breather excitations in the sine-Gordon chain

Journal Article · Mon Apr 09 04:00:00 EST 1979 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.42.937· OSTI ID:6176494

Stoll, E; Schneider, T; Bishop, A R

Using a molecular-dynamics technique for the classical sine-Gordon chain, we have found that nonlinear breather modes give rise to two excitation branches. A low-frequency resonance is associated with the propagating envelope and a high-frequency peak with the internal oscillations.

• Research Organization: IBM Zurich Research Laboratory, 8803 Rueschlikon ZH, Switzerland
• OSTI ID: 6176494
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 42:15; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

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657006 -- Theoretical Physics-- Statistical Physics & Thermodynamics-- (-1987)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOUND STATE
BOUNDARY CONDITIONS
EQUATIONS
FIELD EQUATIONS
FUNCTIONS
HAMILTONIANS
LIFETIME
MATHEMATICAL OPERATORS
MECHANICS
MOLECULES
OSCILLATIONS
PHONONS
QUANTUM OPERATORS
QUASI PARTICLES
RESONANCE
SINE-GORDON EQUATION
SOLITONS
SPECTRAL DENSITY
SPECTRAL FUNCTIONS
STATISTICAL MECHANICS
TIME DEPENDENCE