46 citations · 157 across the 15 of their papers we have counts for
16 papers
Fault-tolerant cost of shallow QAOA on near-symmetric optimization problems
Jernej Rudi Finžgar, Martin Leib, Elisabeth Wybo
Montanaro and Zhou proved that depth-one Quantum Approximate Optimization Algorithm (QAOA) finds the planted solution of certain near-symmetric constraint satisfaction problems wit…
Quantum-informed surrogate sampling for combinatorial optimization
Elisabeth Wybo, Jernej Rudi Finžgar
We introduce Quantum-Informed Surrogate Sampling (QISS), a post-processing framework that generates candidate solutions to combinatorial optimization problems from low-weight corre…
Rolling Stock Planning Using the Quantum Approximate Optimization Algorithm
Jiří Guth Jarkovský, Patricia Bickert, Elisabeth Wybo +1
Rolling stock planning is a complex optimization problem in railway management that involves assigning physical trains to scheduled trips while minimizing operational costs. In thi…
Observing dissipationless flow of an impurity in a strongly repulsive quantum fluid
Milena Horvath, Sudipta Dhar, Elisabeth Wybo +6
The frictionless motion of an object through a fluid medium is commonly viewed as a hallmark of superfluidity. According to Landau, kinematic constraints prohibit superfluid behavi…
A scalable quantum-enhanced greedy algorithm for maximum independent set problems
Elisabeth Wybo, Jami Rönkkö, Olli Hirviniemi +2
We investigate a hybrid quantum-classical algorithm for solving the Maximum Independent Set (MIS) problem on regular graphs, combining the Quantum Approximate Optimization Algorith…
A Superconducting Qubit-Resonator Quantum Processor with Effective All-to-All Connectivity
Michael Renger, Jeroen Verjauw, Nicola Wurz +62
In this work we introduce a superconducting quantum processor architecture that uses a transmission-line resonator to implement effective all-to-all connectivity between six transm…
Technology and Performance Benchmarks of IQM's 20-Qubit Quantum Computer
Leonid Abdurakhimov, Janos Adam, Hasnain Ahmad +111
Quantum computing has tremendous potential to overcome some of the fundamental limitations present in classical information processing. Yet, today's technological limitations in th…
Missing Puzzle Pieces in the Performance Landscape of the Quantum Approximate Optimization Algorithm
Elisabeth Wybo, Martin Leib
We consider the maximum cut and maximum independent set problems on random regular graphs in the infinite-size limit, and calculate the energy densities achieved by QAOA for high d…
Vanishing performance of the parity-encoded quantum approximate optimization algorithm applied to spin-glass models
Elisabeth Wybo, Martin Leib
The parity mapping provides a geometrically local encoding of the Quantum Approximate Optimization Algorithm (QAOA), at the expense of having a quadratic qubit overhead for all-to-…
Preparing and Analyzing Solitons in the sine-Gordon Model with Quantum Gas Microscopes
Elisabeth Wybo, Alvise Bastianello, Monika Aidelsburger +2
The sine-Gordon model emerges as a low-energy theory in a plethora of quantum many-body systems. Here, we theoretically investigate tunnel-coupled Bose-Hubbard chains with strong r…
Quantum sine-Gordon dynamics in coupled spin chains
Elisabeth Wybo, Michael Knap, Alvise Bastianello
The sine-Gordon field theory emerges as the low-energy description in a wealth of quantum many-body systems. Recent efforts have been directed towards realizing quantum simulators…
Dynamics of Negativity of a Wannier-Stark Many-Body Localized System Coupled to a Bath
Elisabeth Wybo, Michael Knap, Frank Pollmann
An interacting system subjected to a strong linear potential can host a many-body localized (MBL) phase when being slightly perturbed. This so-called Wannier-Stark or `tilted-field…
Visualizing Quasiparticles from Quantum Entanglement for general 1D phases
Elisabeth Wybo, Frank Pollmann, S. L. Sondhi +1
In this work, we present a quantum information framework for the entanglement behavior of the low energy quasiparticle (QP) excitations in various quantum phases in one-dimensional…
Observing Quasiparticles through the Entanglement Lens
Yizhi You, Elisabeth Wybo, Frank Pollmann +1
The low energy physics of interacting quantum systems is typically understood through the identification of the relevant quasiparticles or low energy excitations and their quantum…
Entanglement dynamics of a many-body localized system coupled to a bath
Elisabeth Wybo, Michael Knap, Frank Pollmann
The combination of strong disorder and interactions in closed quantum systems can lead to many-body localization (MBL). However this quantum phase is not stable when the system is…
Spinon confinement and deconfinement in spin-1 chains
Laurens Vanderstraeten, Elisabeth Wybo, Natalia Chepiga +2
Motivated by the rich phase diagrams recently unveiled in frustrated spin-1 chains with competing next-nearest neighbour and four-spin interactions, we investigate the nature of th…