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20222026
most citedEvidence that PUBO outperforms QUBO when solving continuous optimization problems with the QAOA

12 citations · 18 across the 35 of their papers we have counts for

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21 papers · 1 filter

quant-ph2026

Same Spectrum, Harder First-Order Training: Phase-Locking in Single- versus Multi-Qubit Re-Uploading Circuits

Michael Poppel, David Bucher, Maximilian Zorn +5

Angle-encoded variational quantum circuits implement truncated Fourier series. For one-dimensional inputs, a single-qubit re-uploading (serial) circuit represents every function th…

quant-ph2026

Implicit Differentiation for Measurement-Efficient Bilevel Quantum-Classical Optimization

Tobias Rohe, Markus Baumann, Federico Harjes Ruiloba +3

Quantum optimization has shown promising results for quadratic unconstrained binary optimization (QUBO) problems. Real-world applications, however, often involve polynomial coeffic…

quant-ph2026

Exploiting Symmetry in Quantum Reservoir Computing

Markus Baumann, Michael Poppel, Thomas Gabor +3

Quantum reservoir computing (QRC) uses a quantum processor without training it. The input is encoded into a quantum state, a fixed random circuit evolves it, selected observables a…

quant-ph2026

Architecture Shape Governs QNN Trainability: Jacobian Null Space Growth and Parameter Efficiency

Michael Poppel, David Bucher, Maximilian Zorn +5

Variational quantum circuits with angle encoding implement truncated Fourier series, and architectures arranging qubits with encoding layers each -- sharing encoding budget…

quant-ph2026

Quantum Optimization Methods for the Generalized Traveling Salesman Problem

Maximilian Zorn, Melinda Braun, Michael Ertl +4

This paper studies quantum optimization baselines for the Generalized Traveling Salesman Problem (GTSP), a clustered routing problem that naturally models variant selection and seq…

quant-ph2026

From Quantum Shots to Training Data: Reorganizing Measurement Records in Quantum Machine Learning

Markus Baumann, Maximilian Zorn, Thomas Gabor +2

Between keeping every shot as a noisy training example and averaging all shots into one clean feature lies an entire spectrum of data organizations that quantum machine learning us…

quant-ph2025

Topology-Guided Quantum GANs for Constrained Graph Generation

Tobias Rohe, Markus Baumann, Michael Poppel +3

Quantum computing (QC) promises theoretical advantages, benefiting computational problems that would not be efficiently classically simulatable. However, much of this theoretical s…

quant-ph2025

Quantum Optimization Algorithms

Jonas Stein, Maximilian Zorn, Leo Sünkel +1

Quantum optimization allows for up to exponential quantum speedups for specific, possibly industrially relevant problems. As the key algorithm in this field, we motivate and discus…

quant-ph2025

Mitigating Exponential Mixed Frequency Growth through Frequency Selection

Michael Poppel, David Bucher, Maximilian Zorn +4

Angle encoding has emerged as a popular feature map for embedding classical data into quantum models, naturally generating truncated Fourier series with universal function approxim…

quant-ph2025★ 3 cited

Time-Aware Qubit Assignment and Circuit Optimization for Distributed Quantum Computing

Leo Sünkel, Jonas Stein, Maximilian Zorn +2

The emerging paradigm of distributed quantum computing promises a potential solution to scaling quantum computing to currently unfeasible dimensions. While this approach itself is…

quant-ph2025

Quality Diversity for Variational Quantum Circuit Optimization

Maximilian Zorn, Jonas Stein, Maximilian Balthasar Mansky +3

Optimizing the architecture of variational quantum circuits (VQCs) is crucial for advancing quantum computing (QC) towards practical applications. Current methods range from static…

quant-ph2025

Evaluating Mutation Techniques in Genetic Algorithm-Based Quantum Circuit Synthesis

Michael Kölle, Tom Bintener, Maximilian Zorn +4

Quantum computing leverages the unique properties of qubits and quantum parallelism to solve problems intractable for classical systems, offering unparalleled computational potenti…

quant-ph2024

Sequential Hamiltonian Assembly: Enhancing the training of combinatorial optimization problems on quantum computers

Navid Roshani, Jonas Stein, Maximilian Zorn +3

A central challenge in quantum machine learning is the design and training of parameterized quantum circuits (PQCs). Much like in deep learning, vanishing gradients pose significan…

quant-ph2024

Optimizing Variational Quantum Circuits Using Metaheuristic Strategies in Reinforcement Learning

Michael Kölle, Daniel Seidl, Maximilian Zorn +3

Quantum Reinforcement Learning (QRL) offers potential advantages over classical Reinforcement Learning, such as compact state space representation and faster convergence in certain…

quant-ph2024

CUAOA: A Novel CUDA-Accelerated Simulation Framework for the QAOA

Jonas Stein, Jonas Blenninger, David Bucher +4

The Quantum Approximate Optimization Algorithm (QAOA) is a prominent quantum algorithm designed to find approximate solutions to combinatorial optimization problems, which are chal…

quant-ph2024

Using an Evolutionary Algorithm to Create (MAX)-3SAT QUBOs

Sebastian Zielinski, Maximilian Zorn, Thomas Gabor +2

A common way of solving satisfiability instances with quantum methods is to transform these instances into instances of QUBO, which in itself is a potentially difficult and expensi…

quant-ph2024

A Reinforcement Learning Environment for Directed Quantum Circuit Synthesis

Michael Kölle, Tom Schubert, Philipp Altmann +3

With recent advancements in quantum computing technology, optimizing quantum circuits and ensuring reliable quantum state preparation have become increasingly vital. Traditional me…

quant-ph2024

Quantum Advantage Actor-Critic for Reinforcement Learning

Michael Kölle, Mohamad Hagog, Fabian Ritz +4

Quantum computing offers efficient encapsulation of high-dimensional states. In this work, we propose a novel quantum reinforcement learning approach that combines the Advantage Ac…

quant-ph2023★ 1 cited

Improving Parameter Training for VQEs by Sequential Hamiltonian Assembly

Jonas Stein, Navid Roshani, Maximilian Zorn +3

A central challenge in quantum machine learning is the design and training of parameterized quantum circuits (PQCs). Similar to deep learning, vanishing gradients pose immense prob…

quant-ph2023

Introducing Reduced-Width QNNs, an AI-inspired Ansatz Design Pattern

Jonas Stein, Tobias Rohe, Francesco Nappi +5

Variational Quantum Algorithms are one of the most promising candidates to yield the first industrially relevant quantum advantage. Being capable of arbitrary function approximatio…

quant-ph2023★ 12 cited

Evidence that PUBO outperforms QUBO when solving continuous optimization problems with the QAOA

Jonas Stein, Farbod Chamanian, Maximilian Zorn +4

Quantum computing provides powerful algorithmic tools that have been shown to outperform established classical solvers in specific optimization tasks. A core step in solving optimi…