186 citations · 784 across the 22 of their papers we have counts for
21 papers
Can foreign exchange rates violate Bell inequalities?
Hans De Raedt, Mikhail I. Katsnelson, Manpreet S. Jattana +5
The analysis of empirical data through model-free inequalities leads to the conclusion that violations of Bell-type inequalities by empirical data cannot have any significance unle…
Stirring the false vacuum via interacting quantized bubbles on a 5564-qubit quantum annealer
Jaka Vodeb, Jean-Yves Desaules, Andrew Hallam +7
False vacuum decay is a potential mechanism governing the evolution of the early Universe, with profound connections to non-equilibrium quantum physics, including quenched dynamics…
Large-Scale Simulation of Shor's Quantum Factoring Algorithm
Dennis Willsch, Madita Willsch, Fengping Jin +2
Shor's factoring algorithm is one of the most anticipated applications of quantum computing. However, the limited capabilities of today's quantum computers only permit a study of S…
Einstein-Podolsky-Rosen-Bohm experiments: a discrete data driven approach
Hans De Raedt, Mikhail I. Katsnelson, Manpreet S. Jattana +5
We take the point of view that building a one-way bridge from experimental data to mathematical models instead of the other way around avoids running into controversies resulting f…
Model-free inequality for data of Einstein-Podolsky-Rosen-Bohm experiments
Hans De Raedt, Mikhail I. Katsnelson, Manpreet S. Jattana +5
We present a new inequality constraining correlations obtained when performing Einstein-Podolsky-Rosen-Bohm experiments. The proof does not rely on mathematical models that are ima…
Observation of Josephson Harmonics in Tunnel Junctions
Dennis Willsch, Dennis Rieger, Patrick Winkel +27
Approaches to developing large-scale superconducting quantum processors must cope with the numerous microscopic degrees of freedom that are ubiquitous in solid-state devices. State…
On the fragility of gate-error metrics in simulation models of flux-tunable transmon quantum computers
Hannes Lagemann, Dennis Willsch, Madita Willsch +3
Constructing a quantum computer requires immensely precise control over a quantum system. A lack of precision is often quantified by gate-error metrics, such as the average infidel…
Hybrid Quantum Classical Simulations
Dennis Willsch, Manpreet Jattana, Madita Willsch +4
We report on two major hybrid applications of quantum computing, namely, the quantum approximate optimisation algorithm (QAOA) and the variational quantum eigensolver (VQE). Both a…
Lecture Notes: Programming Quantum Computers
Madita Willsch, Dennis Willsch, Kristel Michielsen
Quantum computing is a new emerging computer technology. Current quantum computing devices are at a development stage where they are gradually becoming suitable for small real-worl…
Benchmarking Advantage and D-Wave 2000Q quantum annealers with exact cover problems
Dennis Willsch, Madita Willsch, Carlos D. Gonzalez Calaza +4
We benchmark the quantum processing units of the largest quantum annealers to date, the 5000+ qubit quantum annealer Advantage and its 2000+ qubit predecessor D-Wave 2000Q, using t…
GPU-accelerated simulations of quantum annealing and the quantum approximate optimization algorithm
Dennis Willsch, Madita Willsch, Fengping Jin +2
We study large-scale applications using a GPU-accelerated version of the massively parallel Jülich universal quantum computer simulator (JUQCS--G). First, we benchmark JUWELS Boost…
Random State Technology
Fengping Jin, Dennis Willsch, Madita Willsch +3
We review and extend, in a self-contained way, the mathematical foundations of numerical simulation methods that are based on the use of random states. The power and versatility of…
Quantum non-demolition dispersive readout of a superconducting artificial atom using large photon numbers
Daria Gusenkova, Martin Spiecker, Richard Gebauer +13
Reading out the state of superconducting artificial atoms typically relies on dispersive coupling to a readout resonator. For a given system noise temperature, increasing the circu…
Long-Time Correlations in Single-Neutron Interferometry Data
M. Willsch, D. Willsch, K. Michielsen +5
We present a detailed analysis of the time series of time-stamped neutron counts obtained by single-neutron interferometry. The neutron counting statistics display the usual Poisso…
Discrete-event simulation of an extended Einstein-Podolsky-Rosen-Bohm experiment
Hans De Raedt, Manpreet Singh Jattana, Dennis Willsch +3
We use discrete-event simulation to construct a subquantum model that can reproduce the quantum-theoretical prediction for the statistics of data produced by the Einstein-Podolsky-…
Discrete-event simulation of quantum walks
Madita Willsch, Dennis Willsch, Kristel Michielsen +1
We use discrete-event simulation on a digital computer to study two different models of experimentally realizable quantum walks. The simulation models comply with Einstein locality…
Benchmarking Supercomputers with the Jülich Universal Quantum Computer Simulator
Dennis Willsch, Hannes Lagemann, Madita Willsch +3
We use a massively parallel simulator of a universal quantum computer to benchmark some of the most powerful supercomputers in the world. We find nearly ideal scaling behavior on t…
Benchmarking the Quantum Approximate Optimization Algorithm
Madita Willsch, Dennis Willsch, Fengping Jin +2
The performance of the quantum approximate optimization algorithm is evaluated by using three different measures: the probability of finding the ground state, the energy expectatio…
Real-time simulation of flux qubits used for quantum annealing
Madita Willsch, Dennis Willsch, Fengping Jin +2
The real-time flux dynamics of up to three superconducting quantum interference devices (SQUIDs) are studied by numerically solving the time-dependent Schrödinger equation. The num…
Support vector machines on the D-Wave quantum annealer
Dennis Willsch, Madita Willsch, Hans De Raedt +1
Kernel-based support vector machines (SVMs) are supervised machine learning algorithms for classification and regression problems. We introduce a method to train SVMs on a D-Wave 2…
Testing quantum fault tolerance on small systems
D. Willsch, M. Willsch, F. Jin +2
We extensively test a recent protocol to demonstrate quantum fault tolerance on three systems: (1) a real-time simulation of five spin qubits coupled to an environment with two-lev…