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- W2024348894 startingPage "1941" @default.
- W2024348894 abstract "We study the excitation spectrum of the two-leg antiferromagnetic S=1/2 Heisenberg ladder. Our approach is based on the description of the excitations as triplets above a strong-coupling singlet ground state. The quasiparticle spectrum is calculated by treating the excitations as a dilute Bose gas with infinite on-site repulsion. We find singlet (S=0) and triplet (S=1) two-particle bound states of the elementary triplets. We argue that bound states generally exist in any dimerized quantum spin model." @default.
- W2024348894 created "2016-06-24" @default.
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- W2024348894 date "1998-08-31" @default.
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- W2024348894 title "Bound States of Magnons in the<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mi mathvariant=italic>S</mml:mi><mml:mspace /><mml:mo>=</mml:mo><mml:mspace /><mml:mn>1</mml:mn><mml:mn /><mml:mi>/</mml:mi><mml:mn>2</mml:mn></mml:math>Quantum Spin Ladder" @default.
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- W2024348894 doi "https://doi.org/10.1103/physrevlett.81.1941" @default.
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