3 papers
quant-ph2026
Reachability Constraints in Variational Quantum Circuits: Optimization within Polynomial Group Module
Yun-Tak Oh, Dongsoo Lee, Jungyoul Park +2
This work identifies a necessary condition for any variational quantum approach to reach the exact ground state. Briefly, the norms of the projections of the input and the ground s…
cond-mat.str-el2026
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…
cond-mat.str-el2025
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…