Karl Jansen

Simulating 2D Effects in Lattice Gauge Theories on a Quantum Computer

2021 · PRX Quantum

Quantum computing is in its greatest upswing, with so-called noisy-intermediate-scale-quantum devices heralding the computational power to be expected in the near future. While the field is progressing toward quantum advantage, quantum computers already have the …

Investigating the variance increase of readout error mitigation through\n classical bit-flip correction on IBM and Rigetti quantum computers

2021 · arXiv (Cornell University)

Readout errors are among the most dominant errors on current noisy\nintermediate-scale quantum devices. Recently, an efficient and scaleable method\nfor mitigating such errors has been developed, based on classical bit-flip\ncorrection. In this talk, we compare the …

Fermionic wave packet scattering: a quantum computing approach

2023 · arXiv (Cornell University)

Quantum computing provides a novel avenue towards simulating dynamical phenomena, and, in particular, scattering processes relevant for exploring the structure of matter. However, preparing and evolving particle wave packets on a quantum device is a …

Physics-Informed Bayesian Optimization of Variational Quantum Circuits

2024 · arXiv (Cornell University)

In this paper, we propose a novel and powerful method to harness Bayesian optimization for Variational Quantum Eigensolvers (VQEs) -- a hybrid quantum-classical protocol used to approximate the ground state of a quantum Hamiltonian. Specifically, …