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- W2316179974 abstract "We have developed an efficient tensor network algorithm for spin ladders, which generates ground-state wave functions for infinite-size quantum spin ladders. The algorithm is able to efficiently compute the ground-state fidelity per lattice site, a universal phase transition marker, thus offering a powerful tool to unveil quantum many-body physics underlying spin ladders. To illustrate our scheme, we consider the two-leg and three-leg Heisenberg spin ladders with staggering dimerization, the two-leg Heisenberg spin ladder with cyclic four-spin exchange, and the ferromagnetic frustrated two-leg ladder. The ground-state phase diagrams thus yielded are reliable, compared with the previous studies based on the the exact diagonalization and the density matrix renormalization group. Our results indicate that the ground-state fidelity per lattice site successfully captures quantum criticalities in spin ladders." @default.
- W2316179974 created "2016-06-24" @default.
- W2316179974 creator A5007687590 @default.
- W2316179974 creator A5042825563 @default.
- W2316179974 creator A5059575071 @default.
- W2316179974 creator A5060782321 @default.
- W2316179974 creator A5075920053 @default.
- W2316179974 creator A5044949534 @default.
- W2316179974 date "2012-08-01" @default.
- W2316179974 modified "2023-10-09" @default.
- W2316179974 title "Tensor network states and ground-state fidelity for quantum spin ladders" @default.
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- W2316179974 doi "https://doi.org/10.1103/physrevb.86.064401" @default.