4 papers
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…
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…
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…