Wolfgang Lechner
4 papers in the PaperMetrix corpus
Papers by this author
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Scaling overhead of embedding optimization problems in quantum annealing
2021 · arXiv (Cornell University)
In order to treat all-to-all connected quadratic binary optimization problems (QUBO) with hardware quantum annealers, an embedding of the original problem is required due to the sparsity of the hardware's topology. Embedding fully-connected graphs - …
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Error Mitigation for Quantum Approximate Optimization
2023 · arXiv (Cornell University)
Solving optimization problems on near term quantum devices requires developing error mitigation techniques to cope with hardware decoherence and dephasing processes. We propose a mitigation technique based on the LHZ architecture. This architecture uses a …
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SWAP-less Implementation of Quantum Algorithms
2024 · arXiv (Cornell University)
We present a formalism based on tracking the flow of parity quantum information to implement algorithms on devices with limited connectivity without qubit overhead, SWAP operations or shuttling. Instead, we leverage the fact that entangling …
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Spin model for quantum annealing with Kerr parametric oscillators
2026 · Physical Review A
Coherent states offer a promising path for near-term quantum computing due to their inherent protection against bit-flip noise. However, their large photon numbers can be challenging for numerical simulation. This paper introduces an effective model, …