10 papers
Marginal Operator Deformations and Pseudocriticality in Baxter--Wu Models
Hyun-Yong Lee, Naoki Kawashima, Nikolaos G. Fytas +1
Weak first-order transitions can exhibit extended pseudocritical scaling regimes that mimic genuine criticality. We show that the long-debated apparent criticality of the dilute Ba…
Magnetic-texture winding controls fermion-parity switches in an interacting -wave magnet ring
Hyun-Yong Lee
Coplanar magnetic spirals map locally onto uniform spin--orbit-coupled wires, but on a ring the rotating spin frame can change the electronic boundary condition. We prove, level by…
Universal Information-Theoretic Structure of the Quasi-Stationary Domany--Kinzel Automaton
Hyun-Yong Lee, Kenji Harada, Naoki Kawashima
We characterize the quasi-stationary distribution (QSD) of the bond directed-percolation line of the Domany--Kinzel automaton using a matrix-product-state representation of the pro…
Data-efficient reconstruction of critical quantum dynamics via blind fractional-envelope extrapolation
Hyunju Kim, Hyun-Yong Lee, Heung-Sik Kim
Simulating real-time dynamics of quantum systems is often limited to short times by entanglement growth. Finite-pole reconstructions such as linear prediction and related machineri…
Spin-orbit-induced quantum chiral phases
Daesik Kim, Hyojae Jeon, Seongjun Park +3
The scalar spin chirality (SSC), whose nonzero value implies the breaking of time-reversal and certain point-g…
Projector, Neural, and Tensor-Network Representations of Cluster and Dipolar-cluster SPT States
Seungho Lee, Daesik Kim, Hyun-Yong Lee +1
The cluster-state wavefunction, a paradigmatic example of symmetry-protected topological (SPT) order with symmetry, is expressed i…
Topological phase transition of deformed toric code
Yun-Tak Oh, Hyun-Yong Lee
We investigate topological phase transitions in a family of deformed toric-code wavefunctions prepared from a cluster state by local deformations and projective measu…
Spin-orbit-induced Instability and Finite-Temperature Stabilization of a Triangular-lattice Supersolid
Seongjun Park, Sung-Min Park, Yun-Tak Oh +2
Geometrically frustrated triangular-lattice magnets provide fertile ground for realizing intriguing quantum phases such as spin supersolids. A common expectation is that spin-orbit…
Dynamics of one-dimensional spin models via complex-time evolution of tensor networks
Jeong Hyeok Cha, Hyun-Yong Lee, Heung-Sik Kim
Studying the real-time dynamics of strongly correlated systems poses significant challenges, which have recently become more manageable thanks to advances in density matrix renorma…
Nested Shadows of Anyons:A Framework for Identifying Topological Phases
Yun-Tak Oh, Hyun-Yong Lee
The 1-form symmetries in two-dimensional topological systems are ``shadowed'' as global symmetries in their one-dimensional quantum transfer matrices. In this work, we introduce a…