6 citations · 14 across the 6 of their papers we have counts for
5 papers · 1 filter
Two-exciton bound states in the Merrifield exciton model
Ning Wu, Runtian Li, Dazhi Xu
Understanding the formation and dynamics of two-exciton bound states (BSs) is crucial for harnessing multi-exciton phenomena and designing next-generation organic semiconductor mat…
Exact momentum-space analysis of small spin-1/2 - rings
Zimeng Li, Ning Wu
This paper considers an -site spin-1/2 - ring with and . With the help of a set of exact few-magnon Bloch states, we obtain the block-diagonalized Hamiltonian…
Exact solution of the two-magnon problem in the sector of a finite-size anisotropic spin-1/2 frustrated ferromagnetic chain
Zimeng Li, Ning Wu
The two-magnon problem in the sector of a \emph{finite-size} spin-1/2 chain with ferromagnetic nearest-neighbor (NN) interaction and antiferromagnetic next-neare…
Evolution of two-magnon bound states in a higher-spin ferromagnetic chain with single-ion anisotropy: A complete solution
Xinlan Lou, Jiawei Li, Ning Wu
Few-magnon bound states in quantum spin chains have been long studied and attracted much recent attentions. For a higher-spin ferromagnetic XXZ chain with single-ion anisotropy, se…
Few-magnon excitations in a frustrated spin- ferromagnetic chain with single-ion anisotropy
Jiawei Li, Ye Cao, Ning Wu
We study few-magnon excitations in a finite-size spin- chain with ferromagnetic nearest-neighbor (NN) interaction and antiferromagnetic next-nearest-neighbor (NNN) interac…