A method of operating a quantum information processing apparatus is provided. This apparatus includes a structure of coupled qubits, where N≥ 3, wherein the structure further includes coupling…
This thesis investigates three facets of nanomechanics: (i) dynamics in resonator networks, (ii) sensing applications and (iii) nano-electromechanics. These aspects allowed to explore and identify…
Expanded perlite is a highly porous aluminosilicate powder. By means of evacuation and addition of an infrared opacifier, it is possible to achieve exceptionally low thermal conductivities, for…
Im weltweiten Wettbewerb um die besten Lösungen erforscht das Walther-Meißner-Institut für Tieftemperaturforschung der BAdW, welche Technologien sich am besten für Quantencomputer eignen. | Stefan…
Einzigartiges Umfeld, kreativer Nachwuchs, lange Erfahrung: Das Walther-Meißner-Institut der BAdW betreibt seit Jahrzehnten exzellente Grundlagenforschungauf dem Gebiet der Tieftemperaturphysik,…
Vom wissenschaftlichen Nischenthema zum international anerkannten Forschungsfeld: Quantenmikrowellen eröffnen viele Anwendungsperspektiven, für die sich auch die Industrie interessiert. | Frank…
Inmitten der zweiten Quantenrevolution: München hat sich zum führenden deutschen Standortfür die Quantenforschung entwickelt, und die Institute der BAdW spielen eine zentrale Rolle auf dem Weg zum…
We study the interaction of Rayleigh and shear horizontal surface acoustic waves (SAWs) with spin waves in thin Ni films on a piezoelectric LiTaO3 substrate, which supports both SAW modes…
We study the interaction of surface acoustic waves (SAWs) with spin waves (SWs) in a Co40Fe40B20/Au/Ni81Fe19 system composed of two ferromagnetic layers separated by a nonmagnetic Au spacer layer.…
In order to characterize and calibrate quantum processing devices, a large amount of measurement data has to be collected. Active qubit reset increases the speed at which data can be gathered but…
Erbium ions doped into crystals have unique properties for quantum information processing, because of their optical transition at 1.5 μm and of the large magnetic moment of their effective spin-1/2…
For applications making use of magnonic spin currents damping effects, which decrease the spin conductivity, have to be minimized. We here investigate the magnon transport in a yttrium iron garnet…
We investigate the spin dynamics of novel magnon hybrid systems using electrical detection techniques in the microwave regime and spatially resolved optical spectroscopy methods. We observe…
In recent years, layer-by-layer heteroepitaxy has become a versatile tool for depositing novel materials not accessible in bulk form. While it is possible to control the mono layer sequence on an…
Organic salts represent an ideal experimental playground for studying the interplay between magnetic and charge degrees of freedom, which has culminated in the discovery of several spin-liquid…
| Michael Jurkutat, Carsten Kattinger, Stefan Tsankov, Richard Reznicek, Andreas Erb, Jürgen Haase
One of the main limitations in state-of-the art solid-state quantum processors is qubit decoherence and relaxation due to noise from adsorbates on surfaces, impurities at interfaces, and material…
High-pressure anvil cell nuclear magnetic resonance (NMR) studies of single crystals are challenging, but they can offer much insight into material properties. A microcoil inside the high-pressure…
Spin waves are considered as a promising candidate for next-generation logic devices with low power dissipation. Exchange spin waves are particularly attractive for high-speed data processing and…
Angular momentum transport is one of the cornerstones of spintronics. Spin angular momentum is not only transported by mobile charge carriers but also by the quantized excitations of the magnetic…
A quantum memory has to meet the conflicting requirements of strong coupling for fast readout and weak coupling for long storage. Multimode rectangular superconducting 3D cavities are known to…
Wireless power transfer (WPT) systems have emerged as a key technology for the future charging
infrastructure. Besides full system efficiency, the power densities of the transmission coils are key…
In circuit-based quantum computing the available gate set typically consists of single-qubit gates acting on each individual qubit and at least one entangling gate between pairs of qubits. In certain…
We study the high-temperature phase diagram of the chiral magnetic insulator Cu2OSeO3 by measuring the spin-Hall magnetoresistance (SMR) in a thin Pt electrode. We find distinct changes in the phase…
We present a polarization-resolved, high-resolution Raman scattering study of the three consecutive charge density wave (CDW) regimes in 1T−TaS2 single crystals, supported by ab initio calculations.…
Polarization- and temperature-dependent Raman data along with theoretical simulations are presented for the Kagome ferromagnet Fe3Sn2. Eight out of nine expected phonon modes are identified. The…
The Mott transition is one of the most fundamental correlation-driven instabilities in normal metals. Despite extensive studies, there are important unresolved problems and open questions, in…
Building quantum processor with novel properties based on superconducting qubits - this is the aim of the four year project GeQCoS ('German Quantum Computer based on Superconducting Qubits') funded…
The Munich Quantum Valley (MQV) has been founded in 2021 by the Bavarian State Government on the initiative of the Max-Planck Society, the Fraunhofer Society for the Advancement of Applied Research,…
Quantum communication is expected to become an important building block of the secure digital infrastructure in our future society. In quantum communication, the exchange of unconditionally secure…
Applying optimal control techniques allows for faster quantum operations.
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