311 citations · 1.1k across the 18 of their papers we have counts for
18 papers
Entanglement-enabled symmetry-breaking orders
Cheng-Ju Lin, Liujun Zou
A spontaneous symmetry-breaking order is conventionally described by a tensor-product wave-function of some few-body clusters. We discuss a type of symmetry-breaking orders, dubbed…
Probing sign structure using measurement-induced entanglement
Cheng-Ju Lin, Weicheng Ye, Yijian Zou +2
The sign structure of quantum states is closely connected to quantum phases of matter, yet detecting such fine-grained properties of amplitudes is subtle. Here we employ as a diagn…
Krylov complexity of many-body localization: Operator localization in Krylov basis
Fabian Ballar Trigueros, Cheng-Ju Lin
We study the operator growth problem and its complexity in the many-body localization (MBL) system from the Lanczos algorithm perspective. Using the Krylov basis, the operator grow…
Entanglement renormalization of thermofield double states
Cheng-Ju Lin, Zhi Li, Timothy H. Hsieh
Entanglement renormalization is a method for coarse-graining a quantum state in real space, with the multi-scale entanglement renormalization ansatz (MERA) as a notable example. We…
Reaction-diffusion dynamics in a Fibonacci chain: Interplay between classical and quantum behavior
Cheng-Ju Lin, Liujun Zou
We study the reaction-diffusion dynamics of Fibonacci anyons in a one dimensional lattice. Due to their non-Abelian nature, besides the position degree of freedom (DOF), these anyo…
Quantum Many-Body Scar States in Two-Dimensional Rydberg Atom Arrays
Cheng-Ju Lin, Vladimir Calvera, Timothy H. Hsieh
We find exponentially many exact quantum many-body scar states in a two-dimensional PXP model -- an effective model for a two-dimensional Rydberg atom array in the nearest-neighbor…
Unified structure for exact towers of scar states in the AKLT and other models
Daniel K. Mark, Cheng-Ju Lin, Olexei I. Motrunich
Quantum many-body scar states are many-body states with finite energy density in non-integrable models that do not obey the eigenstate thermalization hypothesis. Recent works have…
New exact eigenstates in the Lesanovsky model, proximity to integrability and the PXP model, and approximate scar states
Daniel K. Mark, Cheng-Ju Lin, Olexei I. Motrunich
We study a model of Rydberg atoms in a nearest-neighbor Rydberg blockaded regime, introduced by Lesanovsky in Phys. Rev. Lett. 108, 105301 (2012). This many-body model (which has o…
Slow Thermalization of Exact Quantum Many-Body Scar States Under Perturbations
Cheng-Ju Lin, Anushya Chandran, Olexei I. Motrunich
Quantum many-body scar states are exceptional finite energy density eigenstates in an otherwise thermalizing system that do not satisfy the eigenstate thermalization hypothesis. We…
Exact Quantum Many-Body Scar States in the Rydberg-Blockaded Atom Chain
Cheng-Ju Lin, Olexei I. Motrunich
A recent experiment in the Rydberg atom chain observed unusual oscillatory quench dynamics with a charge density wave initial state, and theoretical works identified a set of many-…
Out-of-time-ordered correlators in short-range and long-range hard-core boson models and in the Luttinger-liquid model
Cheng-Ju Lin, Olexei I. Motrunich
We study out-of-time-ordered correlators (OTOC) in hard-core boson models with short-range and long-range hopping and compare the results to the OTOC in the Luttinger liquid model.…
Out-of-time-ordered correlators in quantum Ising chain
Cheng-Ju Lin, Olexei I. Motrunich
Out-of-time-ordered correlators (OTOC) have been proposed to characterize quantum chaos in generic systems. However, they can also show interesting behavior in integrable models, r…
Explicit construction of quasi-conserved local operator of translationally invariant non-integrable quantum spin chain in prethermalization
Cheng-Ju Lin, Olexei I. Motrunich
We numerically construct translationally invariant quasi-conserved operators with maximum range M which best-commute with a non-integrable quantum spin chain Hamiltonian, up to M =…
Quasiparticle explanation of "weak thermalization" regime under quench in a non-integrable quantum spin chain
Cheng-Ju Lin, Olexei I. Motrunich
Eigenstate Thermalization Hypothesis provides one picture of thermalization in a quantum system by looking at individual eigenstates. However, it is also important to consider how…
Signatures of strong correlation effects in RIXS on Cuprates
Wan-Ju Li, Cheng-Ju Lin, Ting-Kuo Lee
Recently, spin excitations in doped cuprates are measured using the resonant inelastic X-ray scattering (RIXS). The paramagnon dispersions show the large hardening effect in the el…
Spin structure factor and thermodynamics in the antiferromagnetic quantum Ising model in the pyrochlore lattice
Cheng-Ju Lin, Chen-Nan Liao, Chyh-Hong Chern
We numerically compute the temperature dependence of spin structure factor and thermodynamic quantities in the antiferromagnetic quantum Ising model in the pyrochlore lattice. This…
Spin Distribution in Diffraction Pattern of Two-dimensional Electron Gas with Spin-orbit Coupling
Cheng-Ju Lin, Chyh-Hong Chern
Spin distribution in the diffraction pattern of two-dimensional electron gas by a split gate and a quantum point contact is computed in the presence of the spin-orbit coupling. Aft…
Non-magnetic Stern-Gerlach Experiment from Electron Diffraction
Chyh-Hong Chern, Cheng-Ju Lin
Using the wave nature of the electrons, we demonstrate that a transverse spin current can be generated simply by the diffraction through a single slit in the spin-orbital coupling…