3 citations · 3 across the 5 of their papers we have counts for
5 papers
Minimal nonintegrable models with three-site interactions
Wen-Ming Fan, Kun Hao, Yang-Yang Chen +3
We study integrability breaking in translationally invariant spin- chains with genuine three-site interactions. Using a two-qubit composite representation, we prove that the d…
Thermodynamics of the Heisenberg XXX chain with negative spin
Rong Zhong, Yang-Yang Chen, Kun Hao +2
We study the thermodynamics of the isotropic Heisenberg XXX spin chain with negative spin, focusing on the case . The model is equivalent to the quantum lattice nonlinear Sch…
Absence of local conserved charges of the Fredkin spin chain and its truncated versions
Wen-Ming Fan, Kun Hao, Yang-Yang Chen +3
Conservation laws serve as the hallmark of integrability. The absence of conserved charges typically implies that the model is nonintegrable. The recently proposed Fredkin spin cha…
Non-invertible symmetry breaking in a frustration-free spin chain
Akash Sinha, Vivek Kumar Singh, Pramod Padmanabhan +2
A nearest-neighbor, frustration-free spin chain can be constructed {\it via} projectors of various ranks á la Bravyi-Gosset. We show that in the rank 1 case this syst…
Geometric representations of braid and Yang-Baxter gates
Kun Zhang, Kun Hao, Kwangmin Yu +2
Brick-wall circuits composed of the Yang-Baxter gates are integrable. It becomes an important tool to study the quantum many-body system out of equilibrium. To put the Yang-Baxter…