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4 papers · 2 filters
Expressivity Limits in Quantum Walk-based Optimization
Guilherme A. Bridi, Debbie Lim, Lirandë Pira +3
Quantum algorithms have emerged as a promising tool to solve combinatorial optimization problems. The quantum walk optimization algorithm (QWOA) is one such variational approach th…
Reversing adiabatic state preparation in few-level quantum systems
L. Romanato, N. Eshaqi-Sani, L. Lepori +3
We present a detailed study of an adiabatic state preparation in an effective three-level quantum system. States can be prepared with high speed and fidelity by adding a counterdia…
Generation and Coherent Control of Dark-State Spatial Modes
Huai-Che Shia, Siang-Wei Shao, Wu-Cheng Chiang +6
The generation and dynamic control of the spatial mode of the dark-state polarization using electromagnetically induced transparency are theoretically investigated. We demonstrate…
Space-Efficient Quantum Error Reduction without log Factors
Aleksandrs Belovs, Stacey Jeffery
Given an algorithm that outputs the correct answer with bounded error, say , it is sometimes desirable to reduce this error to some arbitrarily small -- e.g., if…