Experimental Quantum Optics
and Photonics Group
Nonlinear and Superfluid Dynamics
Latest News
Spontaneously Sliding Multipole Spin Density Waves in Cold Atoms.
Spontaneously Sliding Multipole Spin Density Waves in Cold Atoms reported in Physical Review Letters
Generating Multiparticle Entangled States by Self-Organization.
Generating Multiparticle Entangled States by Self-Organization of Driven Ultracold Atoms reported in Physical Review Letters
Review: Self-Organization in Cold Atoms Mediated by Diffractive Coupling.
Review on self-organization with single-mirror feedback “Self-Organization in Cold Atoms Mediated by Diffractive Coupling” in atoms
MSCA-ETN ColOpt funded.
Thorsten Ackemann coordinates MSCA-European Training Network ColOpt (Collective Effects and Optomechanics in Ultra-cold Matter)
Observation of self-organized hexagons via optomechanically nonlinearities.
Observation of self-organized hexagons via optomechanically nonlinearities reported in Nature Photonics, see News Release and coverage in Optics & Photonics News.
Recent publications
A review and collection of metrics and benchmarks for quantum computers: definitions, methodologies and software
(2025)
Quantum computers have the potential to provide an advantage over classical computers in a number of areas. Numerous metrics to …
Speeding up quantum measurement using space-time trade-off
Physical Review Letters
134,
(2025)
We present a scheme for speeding up quantum measurement. The scheme builds on previous protocols that entangle the system to be …
A quantum wire approach to weighted combinatorial graph optimisation problems
Arxiv
(2025)
Demonstration of weighted graph optimization on a Rydberg atom array using local light-shifts
PRX Quantum
6,
(2025)
Neutral-atom arrays have emerged as a versatile platform toward scalable quantum computation and optimization. In this paper, we …
Graph Coloring via Quantum Optimization on a Rydberg-Qudit Atom Array
Arxiv
(2025)