| N. Rama, M. Opel, V. Sankaranarayanan, R. Gross, S. B. Ogale, T. Venkatesan & M. S. Ramachandra Rao
| Gambra, M. Balbas; Rohr, C.; Gruber, K.; Hermann, B. A.; Franosch, T.
| Rama, N; Opel, M; Sankaranarayanan, V; Gross, R; Ogale, SB; Venkatesan, T; Rao, MSR
| Rohr, Carsten; Gambra, Marta Balbas; Gruber, Kathrin; Hoehl, Cornelia; Malarek, Michael S.; Scherer, Lukas J.; Constable, Edwin C.; Franosch, Thomas; Hermann, Bianca A.
| N. Rama, M. S. Ramachandra Rao, V. Sankaranarayanan, P. Majewski, S. Geprägs, M. Opel & R. Gross
Achieving homogeneous performance metrics between nominally identicalpixels is challenging for the operation of arrays of superconducting nanowiresingle-photon detectors (SNSPDs). Here, local helium
This proseminar will co-organized together with the proseminar "Superconducting Quantum Circuits".
Please visit the description of this course for any organizational details and a selection of
The superradiant phase transition in the dissipative Dicke lattice model, driven by on-site collective atom-photon interactions and inter-site photon hopping, is a cornerstone of nonequilibrium
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.
This team has formed a framework partnership and put forward an ambitious seven year agenda ultimately leading to a 1,000 qubit quantum computing system. The consortium is now launching its first
Michael Fischer was member of the Gross group at WMI as a Master and Ph.D. Student between 2014 and 2018.
Master Thesis: Supraleitendes On-chip-Mikrowellen-Interferometer / On-chip Superconducting
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).
Understanding the non-deterministic behavior of deterministic nonlinear systems has been an implicit
dream since Lorenz observed the “butterfly effect”. A prominent example is the hysteresis
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Qi-Ming Chen was member of the Gross group as a Ph.D. student between 2018 and 2022.
Ph.D. Thesis: Quantum Statistical Properties of a Superconducting Duffing Oscillator (2022)
Qi-Ming was born and
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
Seminar Program WS 2024/25
Time: Friday, 11.15 h Place: Seminar Room 143, Walther-Meißner-Institute,
Walther-Meißner-Seminar
Seminar Program WS 2024/25
Time: Friday, 11.15 h Place: Seminar Room 143,
For additional information, please visit the course on TUM Moodle.
Within the seminar, students give talks on current topics in condensed matter physics. The seminar aims to give a closer look at
The EU project OpenSuperQPlus gets underway
01 March 2023
OpenSuperQPlus unites 28 European research partners from 10 countries aiming to develop a 1,000 qubit quantum computer
The project
Impressum
Walther-Meißner-Institut Bayerische Akademie der Wissenschaften Walther-Meißner-Straße 8 D-85748 Garching bei München Telefon: 089 289-14202 Telefax: 089 289-14206 E-Mail:
Organic Metals and Superconductors
From the everyday experience one normally identifies organic materials as electrical insulators. However, there is a class of synthetic molecular charge-transfer
Successful Quantum Teleportation at Microwave Frequencies
22 December 2021
Quantum teleportation goes microwave
An international team headed by physicists from the Walther-Meißner-Institute (WMI)
Peter Eder was member of the Gross group at WMI as a master and Ph.D. student between 2012 and 2021.
Master Thesis: Dual-path Receiver for State Reconstruction of Propagating Quantum Microwaves
We study the interaction of surface acoustic waves with spin waves in ultrathin CoFeB/Pt bilayers. Because of the interfacial Dzyaloshinskii–Moriya interaction (DMI), the spin wave dispersion is
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
From the everyday experience one normally identifies organic materials as electrical insulators. However, there is a class of synthetic molecular charge-transfer salts, which exhibit metallic
Successful Quantum Teleportation at Microwave Frequencies
22 December 2021
Quantum teleportation goes microwave
An international team headed by physicists from the Walther-Meißner-Institute (WMI)
We study the ordering of spins, the magnetization dynamics, and the spin transport in magnetic materials to understand the formation of complex spin textures, their high-frequency response and the
The controlled deposition of (ultra)thin films and compex heterostructures is key for the successful investigation of quantum effects in solid-state devices and the implementation of novel electronic
Superconducting circuits have become a key platform in the field of quantum technology. This work contributes to the field of microwave quantum photonics by scattering experiments of microwave
Sibylle Meyer was member of the Gross group as a master and Ph.D. student between 2011 and 2015.
Master Thesis: Magneto-thermogalvanische Experimente an (Ga,Mn)As Dünnfilmen (2012) Ph.D. Thesis:
Liquid Helium Pump
Optimization of the Energy Efficiency of Helium Liquefaction Systems
For the operation of a helium liquefaction plant besides operational safety the most crucial figure of merrit
A Submersible Pump for Liquid Helium
Because the storage vessels for liquid helium only have small openings for installing a pump, small dimensions at large pump capacity are key requirements.
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
The WMI Helium Liquefaction Plant
A Long Tradition in Helium Liquefaction
The Walther-Meißner-Institute (WMI) has been operating a helium liquefaction plant for more than 60 years and supplies the
Gross Group: Open Topics for Master Theses
Microwave quantum communication and sensing
Microwaves in the frequency range of 1-10 GHz are the natural frequency scale for many well-known
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.
Non-reciprocal magnonic devices (experiment)
Spin waves (magnons) are the quantized excitations of the magnetic lattice in solid state systems. The field of magnonics is exploring concepts to use
Magnetic resonance spectroscopy in two-dimensional ferromagnets (experiment)
Dimensionality crucially influences the properties of materials. Two-dimensional (2d) van der Waals materials in the
Walther-Meißner-Seminar WS 2023/24
Seminar Program WS 2023/2024
Time: Friday, 11.15 h Place: Seminar Room 143,
Seminar Program WS 2023/2024
Time: Friday, 11.15 h Place: Seminar Room 143, Walther-Meißner-Institute,
