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Diamagnetism of doped two-leg ladders and probing the nature of their commensurate phases
G. Roux, E. Orignac, S. R. White +1
We study the magnetic orbital effect of a doped two-leg ladder in the presence of a magnetic field component perpendicular to the ladder plane. Combining both low-energy approach (…
Boson decay and the dynamical structure factor for the XXZ chain at finite magnetic field
J. Sirker, R. G. Pereira, J. -S. Caux +4
We study the longitudinal dynamical structure factor for the anisotropic spin-1/2 (XXZ) chain at finite magnetic field using bosonization. The leading irrelevant oper…
Spinon-holon interactions in an anisotropic t-J chain: a comprehensive study
Jurij Smakov, A. L. Chernyshev, Steven R. White
We consider a generalization of the one-dimensional t-J model with anisotropic spin-spin interactions. We show that the anisotropy leads to an effective attractive interaction betw…
Binding of holons and spinons in the one-dimensional anisotropic t-J model
Jurij Smakov, A. L. Chernyshev, Steven R. White
We study the binding of a holon and a spinon in the one-dimensional anisotropic t-J model using a Bethe-Salpeter equation approach, exact diagonalization, and density matrix renorm…
Probing the pairing symmetry and pair charge stiffness of doped ladders
A. E. Feiguin, S. R. White, D. J. Scalapino +1
We perform the numerical equivalent of a phase sensitive experiment on doped ladders. We apply proximity effect fields with different complex phases at both ends of an open s…
Time-step targetting methods for real-time dynamics using DMRG
Adrian E. Feiguin, Steven R. White
We present a time-step targetting scheme to simulate real-time dynamics efficiently using the density matrix renormalization group (DMRG). The algorithm works on ladders and system…