TY - JOUR
T1 - Spin-charge coupling in quantum wires at zero magnetic field
AU - Pereira, Rodrigo G.
AU - Sela, Eran
PY - 2010/9/27
Y1 - 2010/9/27
N2 - We discuss an approximation for the dynamic charge response of nonlinear spin-1/2 Luttinger liquids in the limit of small momentum. Besides accounting for the broadening of the charge peak due to two-holon excitations, the nonlinearity of the dispersion gives rise to a two-spinon peak, which at zero temperature has an asymmetric line shape. At finite temperature the spin peak is broadened by diffusion. As an application, we discuss the density and temperature dependence of the Coulomb drag resistivity due to long-wavelength scattering between quantum wires.
AB - We discuss an approximation for the dynamic charge response of nonlinear spin-1/2 Luttinger liquids in the limit of small momentum. Besides accounting for the broadening of the charge peak due to two-holon excitations, the nonlinearity of the dispersion gives rise to a two-spinon peak, which at zero temperature has an asymmetric line shape. At finite temperature the spin peak is broadened by diffusion. As an application, we discuss the density and temperature dependence of the Coulomb drag resistivity due to long-wavelength scattering between quantum wires.
UR - http://www.scopus.com/inward/record.url?scp=77957568515&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.82.115324
DO - 10.1103/PhysRevB.82.115324
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AN - SCOPUS:77957568515
SN - 1098-0121
VL - 82
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 11
M1 - 115324
ER -