368 citations · 2.1k across the 23 of their papers we have counts for
24 papers
Ground-state reachability for variational quantum eigensolvers: a Rydberg-atom case study
Juhi Singh, Andreas Kruckenhauser, Rick van Bijnen +1
As quantum computing progresses, variational quantum eigensolvers (VQE) for ground-state preparation have become an attractive option in leveraging current quantum hardware. Howeve…
High-dimensional SO(4)-symmetric Rydberg manifolds for quantum simulation
Andreas Kruckenhauser, Rick van Bijnen, Torsten V. Zache +2
We develop a toolbox for manipulating arrays of Rydberg atoms prepared in high-dimensional hydrogen-like manifolds in the regime of linear Stark and Zeeman effect. We exploit the S…
Probing phases of quantum matter with an ion-trap tensor-network quantum eigensolver
Michael Meth, Viacheslav Kuzmin, Rick van Bijnen +7
Tensor-Network (TN) states are efficient parametric representations of ground states of local quantum Hamiltonians extensively used in numerical simulations. Here we encode a TN an…
Realizing distance-selective interactions in a Rydberg-dressed atom array
Simon Hollerith, Kritsana Srakaew, David Wei +10
Measurement-based quantum computing relies on the rapid creation of large-scale entanglement in a register of stable qubits. Atomic arrays are well suited to store quantum informat…
Optimal metrology with programmable quantum sensors
Christian D. Marciniak, Thomas Feldker, Ivan Pogorelov +7
Quantum sensors are an established technology that has created new opportunities for precision sensing across the breadth of science. Using entanglement for quantum-enhancement wil…
Quantum optimization via four-body Rydberg gates
Clemens Dlaska, Kilian Ender, Glen Bigan Mbeng +3
There is a large ongoing research effort towards obtaining a quantum advantage in the solution of combinatorial optimization problems on near-term quantum devices. A particularly p…
Quantum Variational Learning of the Entanglement Hamiltonian
Christian Kokail, Bhuvanesh Sundar, Torsten V. Zache +5
Learning the structure of the entanglement Hamiltonian (EH) is central to characterizing quantum many-body states in analog quantum simulation. We describe a protocol where spatial…
Importance sampling of randomized measurements for probing entanglement
Aniket Rath, Rick van Bijnen, Andreas Elben +2
We show that combining randomized measurement protocols with importance sampling allows for characterizing entanglement in significantly larger quantum systems and in a more effici…
Entanglement Hamiltonian Tomography in Quantum Simulation
Christian Kokail, Rick van Bijnen, Andreas Elben +2
Entanglement is the crucial ingredient of quantum many-body physics, and characterizing and quantifying entanglement in closed system dynamics of quantum simulators is an outstandi…
Towards simulating 2D effects in lattice gauge theories on a quantum computer
Danny Paulson, Luca Dellantonio, Jan F. Haase +8
Gauge theories are the most successful theories for describing nature at its fundamental level, but obtaining analytical or numerical solutions often remains a challenge. We propos…
High-energy Bragg scattering measurements of a dipolar supersolid
D. Petter, A. Patscheider, G. Natale +9
We present an experimental and theoretical study of the high-energy excitation spectra of a dipolar supersolid. Using Bragg spectroscopy, we study the scattering response of the sy…
Cross-Platform Verification of Intermediate Scale Quantum Devices
Andreas Elben, Benoît Vermersch, Rick van Bijnen +7
We describe a protocol for cross-platform verification of quantum simulators and quantum computers. We show how to measure directly the overlap an…
Variational spin-squeezing algorithms on programmable quantum sensors
Raphael Kaubruegger, Pietro Silvi, Christian Kokail +5
Arrays of atoms trapped in optical tweezers combine features of programmable analog quantum simulators with atomic quantum sensors. Here we propose variational quantum algorithms,…
Deep Learning-Assisted Classification of Site-Resolved Quantum Gas Microscope Images
Lewis R. B. Picard, Manfred J. Mark, Francesca Ferlaino +1
We present a novel method for the analysis of quantum gas microscope images, which uses deep learning to improve the fidelity with which lattice sites can be classified as occupied…
From coherent collective excitation to Rydberg blockade on an atom chip
Julius de Hond, Rick van Bijnen, S. J. J. M. F. Kokkelmans +3
Using time-resolved measurements, we demonstrate coherent collective Rydberg excitation crossing over into Rydberg blockade in a dense and ultracold gas trapped at a distance of 10…
Observation of Roton Mode Population in a Dipolar Quantum Gas
Lauriane Chomaz, Rick M. W. van Bijnen, Daniel Petter +7
The concept of a roton, a special kind of elementary excitation, forming a minimum of energy at finite momentum, has been essential to understand the properties of superfluid H…
Optimal control of Rydberg lattice gases
Jian Cui, Rick van Bijnen, Thomas Pohl +2
We present optimal control protocols to prepare different many-body quantum states of Rydberg atoms in optical lattices. Specifically, we show how to prepare highly ordered many-bo…
A Coherent Quantum Annealer with Rydberg Atoms
Alexander W. Glaetzle, Rick M. W. van Bijnen, Peter Zoller +1
There is a significant ongoing effort in realizing quantum annealing with different physical platforms. The challenge is to achieve a fully programmable quantum device featuring co…
Many-body interferometry of a Rydberg-dressed spin lattice
Johannes Zeiher, Rick van Bijnen, Peter Schauß +5
Ultracold atoms are an ideal platform to study strongly correlated phases of matter in and out of equilibrium. Much of the experimental progress in this field crucially relies on t…
Quantum magnetism and topological ordering via enhanced Rydberg-dressing near Förster-resonances
R. M. W. van Bijnen, T. Pohl
We devise a cold-atom approach to realizing a broad range of bi-linear quantum magnets. Our scheme is based on off-resonant single-photon excitation of Rydberg -states (Rydberg-…
Patterned Rydberg excitation and ionisation with a spatial light modulator
R. M. W. van Bijnen, C. Ravensbergen, D. J. Bakker +3
We demonstrate the ability to excite atoms at well-defined, programmable locations in a magneto-optical trap, either to the continuum (ionisation), or to a Rydberg state. To this e…
Wireless network control of interacting Rydberg atoms
Jaron Sanders, Rick van Bijnen, Edgar Vredenbregt +1
We identify a relation between the dynamics of ultracold Rydberg gases in which atoms experience a strong dipole blockade and spontaneous emission, and a stochastic process that mo…
Anisotropic and long-range vortex interactions in two-dimensional dipolar Bose gases
B. C. Mulkerin, R. M. W. van Bijnen, D. H. J. O'Dell +2
We perform a theoretical study into how dipole-dipole interactions modify the properties of superfluid vortices within the context of a two-dimensional atomic Bose gas of co-orient…
Dynamical Instability of a Rotating Dipolar Bose-Einstein Condensate
R. M. W. van Bijnen, D. H. J. O'Dell, N. G. Parker +1
We calculate the hydrodynamic solutions for a dilute Bose-Einstein condensate with long-range dipolar interactions in a rotating, elliptical harmonic trap, and analyse their dynami…