Many body seminar: ZXH calculus for many-body problems
Richard East (QuEnG):The ZX calculus is a formal diagrammatic language typically used by computer scientists for the analysis and simplification of quantum circuits.
Nathalie Nagl wins Otto Hahn Medal of the Max Planck Society
As part of her doctoral thesis, Nathalie Nagl developed a new generation of highly compact ultrashort pulse lasers in the infrared spectral range, which can be used, for example, to precisely analyze blood samples. This […]
Antiprotons in superfluid: a new way for sensitive measurements of antimatter
A team of scientists at CERN led by MPQ physicist Masaki Hori has found that a hybrid antimatter-matter atom behaves in an unexpected way when submerged in superfluid helium. The result may open a new […]
Award-winning quantum random number generator
Party mood in our school laboratory PhotonLab. The German Association of School Labs awarded the team led by Dr Silke Stähler-Schöpf and Linda Qerimi a prize for the “Experiment of the Year”. The LeLa award […]
Sensing light
Physicists of the attoworld-team at Ludwig-Maximilians-Universität have uncovered what happens during the sampling of a light field. This helped them increase the sensitivity of the measurement by up to one order of magnitude.
HQS Quantum Simulations gets 12 Meuros in Series A
HQS Quantum Simulations, an European startup for complex quantum simulations, has concluded a Series-A financing round and secured more than 12 million euros together with new research funding.
Quantum Optics Seminar: Characterization of topological amplification with the path integral method.
Álvaro Gómez León (Institute of Fundamental Physics, Madrid):The topology of non-hermitian systems has recently gained a lot of attention due to its possible use in amplification, sensing or laser physics.
Quantum Information & Computing Meeting: Correlations in random matrix product states
Daniel Haag (MPQ)I will define and motivate Haar-random matrix product states (RMPS)
Quantum Optics Seminar: Towards self-assembled crystals of neutral atoms based on dipole-dipole interactions
Lukas Wangler (MPQ)Trapped ions and electrons in solids can form crystals due to their repulsive interactions.
Quantum Information & Computing Meeting: How to simulate quantum measurement without computing marginals
Flavio Baccari (MPQ): I will give an informal introduction to the sampling algorithms recently introduced in arXiv:2112.08499.
Exploration of new frequency frontiers
An international team of physicists under the leadership of Prof. Matthias Kling at the Max-Planck-Institute for Quantum Optics and the Ludwig-Maximilians-Universität has extended a measurement method for the observation of light-induced processes in solids.
Exploration of new frequency frontiers
An international team of physicists under the leadership of Prof. Matthias Kling at the Max-Planck-Institute for Quantum Optics and the Ludwig-Maximilians-Universität has extended a measurement method for the observation of light-induced processes in solids.
Scientific highlights 2021
Many publications by Max Planck scientists in 2021 were of great social relevance or met with a great media response. We have selected 12 articles to present you with an overview of some noteworthy research […]
Researchers propose a new way of generating single photons
For many applications making use of quantum effects, the light has to be in a certain state — namely a single photon state. But what is the best way of generating such single photon states? Researchers have now proposed an entirely new way.
Quantum Optics Seminar: Cavity QED with atomic arrays
David Castells (MPQ)We will be looking into two-dimensional arrays of atoms in an optical lattice with sub-wavelength spacing.
Many body seminar: *Local Lindbladians: Correlations and Phases (journal club)*
Georgios Styliaris (MPQ)Locality in quantum Hamiltonians places fundamental constraints the nature of correlations, and in particular gives rise to a meaningful classification of phases.
Quantum Information & Computing Meeting: Forecasting Chaotic Dynamics with Machine Learning
Cosimo Rusconi (MPQ):I will present the paper PRL 120, 024102 (2018) (see also article cover at QuantaMagazine) where the authors implement a recurrent neural network (RNN) which is able to predict the dynamics of a […]
Many Body Seminar: *Long time evolution of local observables with tensor networks*
Miguel Bello (MPQ):Building on last week’s discussion, I’d like to present an ongoing project of Mari Carmen and me where we try transform the long range entanglement generated after a global quantum quench into mixture.
Quantum Information and Computing Meeting: Quantum complexity in random circuits
Philippe FaistQuantifying quantum states’ complexity is a key problem in various subfields of science, from quantum computing to black-hole physics.
Quantum Optics Seminar: Macroscopic condensation of photon noise in sharply nonlinear dissipative systems
Dominik Wild (MPQ)The preparation of macroscopic non-Gaussian states has been a long-standing challenge in quantum optics.
Many Body Seminar: Efficient simulation of operator hydrodynamics by damping many-body correlations
Daniel Malz (MPQ):A few days ago a paper by Curt von Keyserlingk, Frank Pollmann and Tibor Rakovszky appeared in which they give strong evidence that the time evolution of few-body correlators can be calculated efficiently […]
Holography meets frequency combs
Holography is a powerful technique of photography of a light field without a lens for 3D imaging and display. Now, scientists at the Max-Planck Institute of Quantum Optics move holography forward by implementing it with […]
Quantum Information and Computing Meeting: Floquet codes and dynamically generated logical qubits in quantum error correction (journal club)
Adrián Franco Rubio (MPQ): After giving an introduction to the formalism of stabilizer and subsystem quantum error correcting codes, I will talk about the recent paper arXiv:2107.02194, where Hastings and Haah present a generalization they […]
Quantum Optics Seminar: Effective Models for Quantum Emitters Coupled to 2D Topological Insulators
Miguel Bello (MPQ)First, I will review some results regarding vacancy-like modes in systems of quantum emitters coupled to structured baths.