collaborators

7 papers

quant-ph2026

Coherent-disorder-driven complexity transitions in a quantum-advantage architecture

Sung-Bin B. Lee, Chae-Yeun Park, Changhun Oh +1

While decoherence is known to erode classical hardness in quantum random sampling, the impact of coherent spatial disorder remains an open question. We study a square-lattice insta…

quant-ph2026

Strictly Local Tile-Code Architectures on Two-Dimensional Planar Lattices

Yoonjin Bae, Chae-Yeun Park

Tile codes are a family of planar quantum low-density parity-check (qLDPC) codes with weight-6 stabilizers and open boundary conditions, offering an encoding efficiency of…

quant-ph2026

HyQuRP: Hybrid quantum-classical neural network with rotational and permutational equivariance

Semin Park, Chae-Yeun Park

Group-equivariant quantum machine learning has emerged as a promising paradigm by incorporating symmetry into quantum models. However, constructing models simultaneously equivarian…

quant-ph2026

Toward the Goldilocks blind compression of quantum states

Hyunho Cha, Chae-Yeun Park, Jungwoo Lee

Quantum autoencoders (QAEs) are learning architectures that compress quantum data into a low-dimensional latent state while preserving the information needed for reconstruction. We…

quant-ph2026

All you need is spin: SU(2) equivariant variational quantum circuits based on spin networks

Richard D. P. East, Guillermo Alonso-Linaje, Chae-Yeun Park

Variational algorithms require architectures that naturally constrain the optimization space to run efficiently. Geometric quantum machine learning achieves this goal by encoding g…

quant-ph2025

Quadratically Shallow Quantum Circuits for Hamiltonian Functions

Youngjun Park, Minhyeok Kang, Chae-Yeun Park +1

Many quantum algorithms for ground-state preparation and energy estimation require the implementation of high-degree polynomials of a Hamiltonian to achieve better convergence rate…