203 citations · 439 across the 18 of their papers we have counts for
18 papers
An End-to-End Multi-Stage Kill-Chain Attack on Quantum Neural Networks: Demonstration on Trapped-Ion Hardware
Cedric Brügmann, Daniel Herr, Daniel Ohl de Mello +7
We demonstrate an end-to-end, multi-stage attack against a quantum neural network (QNN) model that is executed on a trapped-ion quantum computer. Our chain combines side-channel re…
Local robust shadows on a trapped ion computer -- a case study
Jadwiga Wilkens, Milena Guevara-Bertsch, Marwa Marso +6
We experimentally demonstrate local robust shadows on a trapped-ion quantum computing system, a protocol developed to counteract measurement errors. We alternate between a calibrat…
Entangling ions with engineered light gradients
Tommaso Faorlin, Lorenz Panzl, Phoebe Grosser +12
Spectral crowding of collective motional modes limits the fidelity of entangling interactions in trapped-ion quantum processors by inducing off-resonant coupling to spectator modes…
Chiplet technology for large-scale trapped-ion quantum processors
Bassem Badawi, Philip C. Holz, Michael Raffetseder +6
Trapped ions are among the most promising platforms for realizing a large-scale quantum information processor. Current progress focuses on integrating optical and electronic compon…
Entangled Threats: A Unified Kill Chain Model for Quantum Machine Learning Security
Pascal Debus, Maximilian Wendlinger, Kilian Tscharke +7
Quantum Machine Learning (QML) systems inherit vulnerabilities from classical machine learning while introducing new attack surfaces rooted in the physical and algorithmic layers o…
Resource-Efficient Hadamard Test Tailored Variational Framework for Nonlinear Dynamics on Quantum Computers
Eleftherios Mastorakis, Muhammad Umer, Milena Guevara-Bertsch +3
Resource-efficient, low-depth implementations of quantum circuits remain a promising strategy for achieving reliable and scalable computation on quantum hardware, as they reduce ga…
Warehouse optimization using a trapped-ion quantum processor
Alexandre C. Ricardo, Gabriel P. L. M. Fernandes, Amanda G. Valério +8
Warehouse optimization stands as a critical component for enhancing operational efficiency within the industrial sector. By strategically streamlining warehouse operations, organiz…
An experimental platform for studying the heteronuclear Efimov effect with an ultracold mixture of Li and Cs atoms
Eleonora Lippi, Manuel Gerken, Stephan Häfner +10
We present the experimental apparatus enabling the observation of the heteronuclear Efimov effect in an optically trapped ultracold mixture of Li-Cs with high-resolutio…
Estimation of electrostatic interaction energies on a trapped-ion quantum computer
Pauline J. Ollitrault, Matthias Loipersberger, Robert M. Parrish +12
We present the first hardware implementation of electrostatic interaction energies using a trapped-ion quantum computer. As test system for our computation, we focus on the reducti…
Quantum amplitude estimation with error mitigation for time-evolving probabilistic networks
M. C. Braun, T. Decker, N. Hegemann +3
We present a method to model a discretized time evolution of probabilistic networks on gate-based quantum computers. We consider networks of nodes, where each node can be in one of…
Fermions meet two bosons -- the heteronuclear Efimov effect revisited
Binh Tran, Michael Rautenberg, Manuel Gerken +7
In this article, we revisit the heteronuclear Efimov effect in a Bose-Fermi mixture with large mass difference in the Born-Oppenheimer picture. As a specific example, we consider t…
High partial-wave Feshbach resonances in an ultracold Li-Cs mixture
Bing Zhu, Stephan Häfner, Binh Tran +4
We measure higher partial wave Feshbach resonances in an ultracold mixture of fermionic Li and bosonic Cs by magnetic field dependent atom-loss spectroscopy. For the $p…
Spin-rotation coupling in p-wave Feshbach resonances
Bing Zhu, Stephan Häfner, Binh Tran +4
We report evidence for spin-rotation coupling in -wave Feshbach resonances in an ultracold mixture of fermionic Li and bosonic Cs lifting the commonly observed degen…
Role of the intraspecies scattering length in the Efimov scenario with large mass difference
Stephan Häfner, Juris Ulmanis, Eva D. Kuhnle +3
We experimentally and theoretically study the effect of the intraspecies scattering length onto the heteronuclear Efimov scenario, following up on our earlier observation of Efimov…
Heteronuclear Efimov scenario with positive intraspecies scattering length
Juris Ulmanis, Stephan Häfner, Rico Pires +4
We investigate theoretically and experimentally the heteronuclear Efimov scenario for a three-body system that consists of two bosons and one distinguishable particle with positive…
Analyzing Feshbach resonances -- A Li -Cs case study
Rico Pires, Marc Repp, Juris Ulmanis +7
We provide a comprehensive comparison of a coupled channels calculation, the asymptotic bound state model (ABM), and the multichannel quantum defect theory (MQDT). Quantitative res…
Observation of Efimov Resonances in a Mixture with Extreme Mass Imbalance
R. Pires, J. Ulmanis, S. Häfner +4
We observe two consecutive heteronuclear Efimov resonances in an ultracold Li-Cs mixture by measuring three-body loss coefficients as a function of magnetic field near a Feshbach r…
Observation of interspecies Li-Cs Feshbach resonances
M. Repp, R. Pires, J. Ulmanis +4
We report on the observation of nineteen interspecies Feshbach resonances in an optically trapped ultracold Bose-Fermi mixture of ^{133}Cs and ^{6}Li in the two energetically lowes…