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122 papers · 1 filter
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…
Shallow Implementation of Quantum Fingerprinting with Application to Quantum Finite Automata
Mansur Ziiatdinov, Aliya Khadieva, Kamil Khadiev
Quantum fingerprinting is a technique that maps classical input word to a quantum state. The obtained quantum state is much shorter than the original word, and its processing uses…
Impact of Bivariate Gaussian Potentials on Quantum Walks for Spatial Search
Franklin de L. Marquezino, Raqueline A. M. Santos
Quantum search algorithms are crucial for exploring large solution spaces, but their robustness to environmental perturbations, such as noise or disorder, remains a critical challe…