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20222026
most citedFast gradient-free optimization of excitations in variational quantum eigensolvers

7 citations · 10 across the 6 of their papers we have counts for

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quant-ph2026

Efficient Operator Selection and Warm-Start Strategy for Excitations in Variational Quantum Eigensolvers

Max Haas, Thierry N. Kaldenbach, Thomas Hammerschmidt +1

We present a novel approach for efficient preparation of electronic ground states, leveraging the optimizer ExcitationSolve [Jäger et al., Comm. Phys. (2025)] and established varia…

quant-ph2025

Efficient Preparation of Resource States for Hamiltonian Simulation and Universal Quantum Computation

Thierry N. Kaldenbach, Isaac D. Smith, Hendrik Poulsen Nautrup +2

The direct compilation of algorithm-specific graph states in measurement-based quantum computation (MBQC) can lead to resource reductions in terms of circuit depth, entangling gate…

quant-ph2025★ 1 cited

Improved Strategies for Fermionic Quantum Simulation with Global Interactions

Thierry N. Kaldenbach, Erik Schultheis, Niklas Stewen +1

We present efficient quantum circuits for fermionic excitation operators tailored for ion trap quantum computers exhibiting the Mølmer-Sørensen (MS) gate. Such operators commonly a…

quant-ph2024★ 7 cited

Fast gradient-free optimization of excitations in variational quantum eigensolvers

Jonas Jäger, Thierry Nicolas Kaldenbach, Max Haas +1

Finding molecular ground states and energies with variational quantum eigensolvers is central to chemistry applications on quantum computers. Physically motivated ansätze based on…

quant-ph2023

Mapping quantum circuits to shallow-depth measurement patterns based on graph states

Thierry Nicolas Kaldenbach, Matthias Heller

The paradigm of measurement-based quantum computing (MBQC) starts from a highly entangled resource state on which unitary operations are executed through adaptive measurements and…

quant-ph2022★ 2 cited

Digital Quantum Simulation of Scalar Yukawa Coupling

Thierry N. Kaldenbach, Matthias Heller, Gernot Alber +1

Motivated by the revitalized interest in the digital simulation of medium- and high-energy physics phenomena, we investigate the dynamics following a Yukawa-interaction quench on I…