3 papers
quant-ph2026
Locally Acting Grover Mixers for Constraint-Preserving QAOA
Minjin Choi, Dongkeun Lee, Junghee Ryu
The Grover mixer quantum alternating operator ansatz (GM-QAOA) employs the Grover mixer to confine the quantum evolution to the feasible subspace defined by the problem. Its mixing…
quant-ph2026
Reducing Circuit Resources in Grover's Algorithm via Constraint-Aware Initialization
Eunok Bae, Jeonghyeon Shin, Minjin Choi
Grover's search algorithm provides a quadratic speedup over classical brute-force search in terms of query complexity and is widely used as a versatile subroutine in numerous quant…
quant-ph2025
Two Variations of Quantum Phase Estimation for Reducing Circuit Error Rates: Application to the Harrow--Hassidim--Lloyd Algorithm
Yonghae Lee, Minjin Choi, Youngho Min +2
We introduce two variations of the quantum phase estimation algorithm: quantum shifted phase estimation and quantum punctured phase estimation. The shifted method employs a bit-str…