88 citations · 548 across the 19 of their papers we have counts for
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Random-Singlet Phase in Disordered Two-Dimensional Quantum Magnets
Lu Liu, Hui Shao, Yu-Cheng Lin +2
We study effects of disorder (randomness) in a 2D square-lattice quantum spin system, the - model with a 6-spin interaction supplementing the Heisenberg exchange…
Properties of the random-singlet phase: from the disordered Heisenberg chain to an amorphous valence-bond solid
Yu-Rong Shu, Dao-Xin Yao, Chih-Wei Ke +2
We use a strong-disorder renormalization group (SDRG) method and ground-state quantum Monte Carlo (QMC) simulations to study S=1/2 spin chains with random couplings, calculating di…
Correlated valence-bond states
Yu-Cheng Lin, Ying Tang, Jie Lou +1
We study generalizations of the singlet-sector amplitude-product (AP) states in the valence-bond basis of S=1/2 quantum spin systems. In the standard AP states, the weight of a til…
Definitions of entanglement entropy of spin systems in the valence-bond basis
Yu-Cheng Lin, Anders W. Sandvik
The valence-bond structure of spin-1/2 Heisenberg antiferromagnets is closely related to quantum entanglement. We investigate measures of entanglement entropy based on transition g…