144 citations · 832 across the 44 of their papers we have counts for
44 papers
A hybrid quantum-classical approach to warm-starting optimization
Vanessa Dehn, Thomas Wellens
The Quantum Approximate Optimization Algorithm (QAOA) is a promising candidate for solving combinatorial optimization problems more efficiently than classical computers. Recent stu…
Characterizing crosstalk of superconducting transmon processors
Andreas Ketterer, Thomas Wellens
Currently available quantum computing hardware based on superconducting transmon architectures realizes networks of hundreds of qubits with the possibility of controlled nearest-ne…
Special Session: Noisy Intermediate-Scale Quantum (NISQ) Computers -- How They Work, How They Fail, How to Test Them?
Sebastian Brandhofer, Simon Devitt, Thomas Wellens +1
First quantum computers very recently have demonstrated "quantum supremacy" or "quantum advantage": Executing a computation that would have been impossible on a classical machine.…
Benchmarking the performance of portfolio optimization with QAOA
Sebastian Brandhofer, Daniel Braun, Vanessa Dehn +6
We present a detailed study of portfolio optimization using different versions of the quantum approximate optimization algorithm (QAOA). For a given list of assets, the portfolio o…
Resonant forward-scattered field in the high-saturation regime: Elastic and inelastic contributions
C. C. Kwong, T. Wellens, K. Pandey +1
We measure the resonant forward scattering of light by a highly saturated atomic medium through the flashes emitted immediately after an abrupt extinction of the probe beam. The ex…
Quench dynamics of a weakly interacting disordered Bose gas in momentum space
Thibault Scoquart, Thomas Wellens, Dominique Delande +1
We theoretically study the out-of-equilibrium dynamics in momentum space of a weakly interacting disordered Bose gas launched with a finite velocity. In the absence of interactions…