Converting angular momentum between different degrees of freedom within a magnetic material results from a dynamic interplay between electrons, magnons, and phonons. This interplay is pivotal to…
Security of modern classical data encryption often relies on computationally hard problems, which can be trivialized with the advent of quantum computers. A potential remedy for this is quantum…
Ferroelectricity, where electronic degrees of freedom determine the polar order—thereby enabling fast switching and phase control—is an important research field in current condensed-matter physics.…
Tailored magnon-phonon hybrid systems, in which high-overtone bulk acoustic resonators couple resonantly to the Kittel mode of a ferromagnetic thin film, are considered optimal for the creation of…
In the present work, a detailed field dependence of the resistivity of Ni75Co25 and Ni40Co60 bulk alloys was measured at T = 3 K and 300 K up to high magnetic fields. The focus of the study was to…
We present a cavity-electromechanical system comprising a superconducting quantum interference device which is embedded in a microwave resonator and coupled via a pickup loop to a 6-μg magnetically…
We study the incoherent transport of bosonic particles through a one dimensional lattice with different left and right hopping rates, as modelled by the asymmetric simple inclusion process (ASIP).…
A Cu/Ti neutron supermirror was developed and optimized for high overall and low spin-dependent neutron reflectivities. Control of the roughness growth allowed to achieve 90% reflectivity at the…
We analyze the implementation of high-fidelity, phonon-mediated gate operations and quantum simulation schemes for spin qubits associated with silicon vacancy centers in diamond. Specifically, we…
WMI researchers demonstrate the interconversion of magnons and chiral phonons using a versatile experimental platform
In November 2023, the SNSF Sinergia grant An acoustic quantum interface for circuits and spins (AcQuaInt) was funded by the Swiss National Science Foundation (SNSF). This four year long research…
This thesis explores nano-electromechanical devices, interfacing the motion of nanoscale mechanical oscillators with the magnetic flux in a superconducting SQUID. Fabrication techniques and…
Two-dimensional (2D) carrier systems exhibit various significant physical phenomena for electronics and spintronics, where one of the most promising traits is efficient spin-to-charge conversion…
The ability to control the Gilbert damping which determines the lifetime of spin information is crucial for designing spintronic and magnonic devices. Thus, controlling the Gilbert damping parameter…
State tomography allows quantum states to be characterized, and was recently applied to reveal the dynamic magnetization state of a parametrically driven magnet. The identification of nonclassical…
The Public Annual Report 2023 of the Munich Quantum Valley is available for download now.
MQV and BAdW jointly organize the symposium "Quantum Technologies. Expectations of an Important Future Technology" with top-class lectures.
By strongly driving a transmon-resonator system, the transmon qubit may eventually escape from its cosine-shaped potential. This process is called transmon ionization (TI) and known to be detrimental…
With 300 on-site visitors and more than 300 in the live stream, the symposium Quantum Technologies, organized by BAdW and MQV, was a big success.
WMI hosts the kick-off seminar of the jDPG-Kolleg "Next Generation Computing".
On May 4th the Bavarian Academy of Science opened its doors to the public. The WMI fascinated over 5.500 visitors with low-temperature physics.
WMI researchers clarify the physics of transmon ionization and its impact on the performance of microwave single-photon detectors based on sc qubits.
Superconducting nanowire single-photon detectors (SNSPDs) are a key building block for photonic quantum technologies, as they provide a means for efficient readout of optical circuits with low timing…
Spin currents carried by magnetic waves called magnons can be sent across a device without using insulating magnets.
In its new permanent exhibition on "Light & Matter", the Deutsches Museum provides insight into the interaction between light and matter.
We investigate the magnon transport in ferrimagnetic and antiferromagnetic materials in-depth. Our results shed further light into the present understanding of magnon transport manipulated via a…
| Munich Quantum Valley (MQV)
Der eindrucksvolle Fortschritt in der gezielten Fertigung von Mikro- und Nanostrukturen und deren Kontrolle im Quantenregime hat es erlaubt, Qubits in festkörperbasierten Plattformen herzustellen,…
One of the cornerstones of quantum communication is the unconditionally secure distribution of classical keys between remote parties. This key feature of quantum technology is based on the quantum…
Understanding the non-deterministic behavior of deterministic nonlinear systems has been an implicit dream since Lorenz named it the "butterfly effect". A prominent example is the hysteresis and…
Just like its predecessor OpenSuperQ, the OpenSuperQPlus project is part of the European Quantum Technology Flagship. It is continuing and enhancing OpenSuperQ and brings together most of its team…
The physics of the Mott metal-insulator transition (MIT) has attracted huge interest in the last decades. However, despite broad efforts, some key theoretical predictions are still lacking…
The precession of magnon pseudospin about the equilibrium pseudofield, the latter capturing the nature of magnonic eigen-excitations in an antiferromagnet, gives rise to the magnon Hanle effect. Its…
We investigate the coupled magnetization dynamics in heterostructures of a single crystal of the chiral magnet Cu2OSeO3 (CSO) and a polycrystalline ferromagnet NiFe (Py) thin film using broadband…
Applications for noisy intermediate-scale quantum computing devices rely on the efficient entanglement of many qubits to reach a potential quantum advantage. Although entanglement is typically…
We report the levitation of a superconducting lead-tin sphere with 100 μm diameter (corresponding to a mass of 5.6 μg) in a static magnetic trap formed by two coils in an anti-Helmholtz…
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