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quant-ph2025
Optimizing Quantum Transformation Matrices: A Block Decomposition Approach for Efficient Gate Reduction
Lai Kin Man, Xin Wang
This paper introduces an algorithm designed to approximate quantum transformation matrix with a restricted number of gates by using the block decomposition technique. Addressing ch…
quant-ph2025
Group Sparse Matrix Optimization for Efficient Quantum State Transformation
Lai Kin Man, Xin Wang
Finding ways to transform a quantum state to another is fundamental to quantum information processing. In this paper, we apply the sparse matrix approach to the quantum state trans…
quant-ph2024
Decoherence in Exchange-Coupled Quantum Spin Qubit Systems: Impact of Multiqubit Interactions and Geometric Connectivity
Quan Fu, Jiahao Wu, Xin Wang
We investigate the impact of different connectivities on the decoherence time in quantum systems under quasi-static Heisenberg noise. We considered three types of elementary units,…