In the joint Lighthouse Projects NeQuS and IQSense scientists from different MQV institutions will work on basic aspects of quantum systems.
Peter Rabl has been appointed full professor for Applied Quantum Theory at TUM and Scientific Director at WMI
High-temperature superconducting cuprates respond to doping with a dome-like dependence of their critical temperature (Tc). But the family-specific maximum Tc can be surpassed by application of…
Tip-enhanced Raman spectroscopy (TERS) combines inelastic light scattering well below the diffraction limit down to the nanometer range and scanning probe microscopy and, possibly, spectroscopy. In…
Ohne Signalgeneratoren mit hoher Phasen- und Amplitudenstabilität wäre die heutige Forschung an Quantencomputern nicht möglich. Einige Gerätehersteller arbeiten eng mit der Wissenschaft zusammen, um…
Lithium niobate (LNO) is a well established material for surface acoustic wave (SAW) devices including resonators, delay lines and filters. Recently, multi-layer substrates based on LNO thin films…
We report on the magnetic behavior of oxidized-CoxFe1−xS2 nanocrystals as they assemble to form nanoparticles. The morphologies show a typical NP size of around 250–100 nm and NC sizes of around 7…
Classical interferometers are indispensable tools for the precise determination of various physical quantities. Their accuracy is bound by the standard quantum limit. This limit can be overcome by…
Mittlerweile können Forschende Quantensysteme gezielt erzeugen und ihren Zustand präzise kontrollieren und auslesen. Das nährt nicht nur die Hoffnung auf eine neue Generation von Computern, sondern…
Die Radartechnologie wird seit Jahrzehnten immer weiter vorangetrieben und perfektioniert. Aktuelle Forschungen zielen nun darauf ab, sogar deren fundamentale Leistungsgrenzen zu verschieben.…
For experiments in the sub-Kelvin temperature regime with high demands for an extremely low level of vibration, a pulse tube precooled dilution refrigerator (DR) is described where the (vibration…
| Ze-Liang Xiang and Diego González Olivares and Juan José García-Ripoll and Peter Rabl
In easy-plane antiferromagnets, the nature of the elementary excitations of the spin system is captured by the precession of the magnon pseudospin around its equilibrium pseudofield, manifesting…
Quantum entanglement is a key resource in currently developed quantum technologies. Sharing this fragile property between superconducting microwave circuits and optical or atomic systems would enable…
We study light-matter interactions in the bulk of a two-dimensional photonic lattice system, where photons are subject to the combined effect of a synthetic magnetic field and an orthogonal synthetic…
It is only when solving problems that we ask ourselves questions that we think we have already answered and understood. By providing full solutions, this exercise book with over 100 tasks and…
We address the fundamental question of whether or not it is possible to achieve conditions under which the coupling of a single dipole to a strongly confined electromagnetic vacuum can result in…
We investigate the growth conditions for thin (${\leqslant}200$ nm) sputtered aluminum films. These coatings are needed for various applications, e.g. for advanced manufacturing processes in the…
Scalable quantum information processing with superconducting circuits is about to advance from individual processors in single dilution refrigerators to more powerful distributed quantum computing…
Achieving homogeneous performance metrics between nominally identicalpixels is challenging for the operation of arrays of superconducting nanowiresingle-photon detectors (SNSPDs). Here, local helium…
Geometric and holonomic quantum computation utilizes intrinsic geometric properties of quantum-mechanical state spaces to realize quantum logic gates. Since both geometric phases and quantum…
| Munich Center for Quantum Science and Technology (MCQST)
In diesem Buch teilen führende Vertreter aus Industrie und Forschung ihre Erfahrungen und Empfehlungen zur wirtschaftlichen Nutzbarmachung der Quantentechnologien. Verständlich geschrieben erklären…
Ohne hochgradig phasen- und amplitudenstabile Signalgeneratoren wäre die
heutige Forschung an Quantencomputern nicht möglich. Einige Gerätehersteller
arbeiten eng mit der…
A magnonic spin current crossing a ferromagnet-metal interface is accompanied by spin current shot noise arising from the discrete quanta of spin carried by magnons. In thin films, for example, the…
We propose and analyze a scalable and fully autonomous scheme for preparing spatially distributed multiqubit entangled states in a dual-rail waveguide QED setup. In this approach, arrays of qubits…
Antiferromagnetic materials have been proposed as new types of narrowband THz spintronic devices owing to their ultrafast spin dynamics. Manipulating coherently their spin dynamics, however, remains…
We present small-angle neutron scattering studies of the magnetic vortex lattice (VL) in Ca0.04Y0.96Ba2Cu3O7 up to a field of 16.7 T and Ca0.15Y0.85Ba2Cu3O7 up to 25 T to investigate the general…
New-generation direct searches for low mass dark matter feature detection thresholds at energies well below 100 eV, much lower than the energies of commonly used x-ray calibration sources. This…
We present limits on the spin-independent interaction cross section of dark matter particles with silicon nuclei, derived from data taken with a cryogenic calorimeter with 0.35 g target mass operated…
CRESST is a leading direct detection sub-GeV dark matter experiment. During its second phase, cryogenic bolometers were used to detect nuclear recoils off the CaWO4 target crystal nuclei. The…
The CRESST experiment employs cryogenic calorimeters for the sensitive measurement of nuclear recoils induced by dark matter particles. The recorded signals need to undergo a careful cleaning process…
Antiferromagnetic materials promise improved performance for spintronic applications, as they are robust against external magnetic field perturbations and allow for faster magnetization dynamics…
The precession of the magnon pseudospin about the equilibrium pseudofield, the latter capturing the nature of magnonic eigenexcitations in an antiferromagnet, gives rise to the magnon Hanle effect.…
In MCQST’s new seminar "Practical Top-Down Nanofabrication for Quantum Technologies" students train students state-of-the-art nanofabrication at WMI.
The third revised and extended edition of the textbook on "Solid-State Physics. Exercises and Solutions" by Gross, Marx, Einzel and Geprägs appeared.
Andreas Wallraff receives MCQST Distinguished Lecturer Award 2023. The prize acknowledges scientific achievements in the field of QST.
WMI director Rudolf Gross participates in a panel discussion on "Quantum Technologies: Politics & Governance" at the the World of QUANTUM 2023.
Wun Kwan Yam received the MCQSTBest Master Thesis Award 2023 for his master thesis entitled Microwave Quantum Teleportation Over a Thermal Channel.
In an international collaboration, WMI researchers realized the levitation of a superconducting sphere with 100 μm diameter and 5.6 µg mass.
Rudolf Gross becomes new Scientific Director of the Munich Quantum Valley (MQV) and Managing Director of Munich Quantum Valley e.V.
WMI researchers develop a nonlinear Quantum Microwave Parametric Interferometer (QuMPI) with a signal-to-noise ratio exceeding the shot-noise limit
WMI demonstrates that open air QKD with propagating microwaves can be unconditionally secure with communication at room temperature up to 200 m
Dr. habil. Kirill Fedorov of WMI was granted the Venia Lengendi in Experimental Physics from the Technical University of Munich.
The focus issue on quantum computing is published in Physik Journal with contributions from Munich Quantum Valley members J. Eisert and S. Filipp.
The Mid-Term Report of the Excellence Cluster "Munich Center for Quantum Science and Technology (MCQST)" is ready and available online.
Dr. habil. Matthias Althammer received the Venia Lengendi in Experimental Physics from the Technical University of Munich.
WMI proposes a fully autonomous scheme to distribute multipartite entanglement between the nodes of a large quantum network.
The goal of this project is to explore the physics of light-matter interactions in systems of strongly interacting photons, as relevant, for example, for (artificial) superconducting atoms coupled to…
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