TY - JOUR

T1 - Dynamics of a one-dimensional spinor Bose liquid

T2 - A phenomenological approach

AU - Kamenev, A.

AU - Glazman, L. I.

PY - 2009/8/6

Y1 - 2009/8/6

N2 - The ground state of a spinor Bose liquid is ferromagnetic, while the softest excitation above the ground state is the magnon mode. The dispersion relation of the magnon in a one-dimensional liquid is periodic in the wave number q with the period of 2πn, determined by the density n of the liquid. Dynamic correlation functions, such as, e.g., spin-spin correlation function, exhibit power-law singularities at the magnon spectrum, ω→ ωm (q,n). Without using any specific model of the interparticle interactions, we relate the corresponding exponents to independently measurable quantities ∂ ωm /∂q and ∂ ωm /∂n.

AB - The ground state of a spinor Bose liquid is ferromagnetic, while the softest excitation above the ground state is the magnon mode. The dispersion relation of the magnon in a one-dimensional liquid is periodic in the wave number q with the period of 2πn, determined by the density n of the liquid. Dynamic correlation functions, such as, e.g., spin-spin correlation function, exhibit power-law singularities at the magnon spectrum, ω→ ωm (q,n). Without using any specific model of the interparticle interactions, we relate the corresponding exponents to independently measurable quantities ∂ ωm /∂q and ∂ ωm /∂n.

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U2 - 10.1103/PhysRevA.80.011603

DO - 10.1103/PhysRevA.80.011603

M3 - Article

AN - SCOPUS:68549098077

VL - 80

JO - Physical Review A

JF - Physical Review A

SN - 2469-9926

IS - 1

M1 - 011603

ER -