The WMI welcomed a group of curious high school students from the Rainer-Maria-Rilke-Gymnasium in Icking, Germany.
WMI has successfully demonstrated a multi-purpose coupling element
for scalable architectures based on frequency-selective parametric drives,
Dissipative transport of both fermionic and bosonic particles belongs to the Kardar–Parisi–Zhang universality class.
Quantum state tomography of weak microwave signals is an important part of many protocols in the field of quantum information processing with superconducting circuits. This step typically relies on…
Scalable quantum information processing with superconducting circuits is expected to advance from individual processors located in single dilution refrigerators to more powerful distributed quantum…
Correlations in squeezed superradiant bursts are shown to be entangled globally, but classical locally.
The optical manipulation of magnon states in antiferromagnets (AFMs) holds significant potential for advancing AFM-based computing devices. In particular, two-magnon Raman scattering processes are…
WMI researchers realized an improved version of Planck spectroscopy, allowing them to resolve changes in microwave losses of less than 0.1 dB.
In its cabinet meeting on 11/02/2025, the Bavarian State Government decided to strengthen MQV as one of the key projects of its Hightech Agenda.
We implemented Perfect State Transfer and demonstrated its usefulness in efficiently connecting distant qubits and generating multi-qubit entanglement
Scaling up superconducting quantum processors requires a high routing density for readout and control lines, relying on low-loss interconnects to maintain design flexibility and device performance.…
Rudolf Gross retires as Scientific Director of the WMI after shaping the institute for 25 years.
The German Science foundation (DFG) funds the research unit ‘Chiral phonons for spintronics (CHIPS)‘.
The Alexander von Humboldt Foundation awards Prof. Dr. Rudolf Gross the Werner Heisenberg Medal.
This study delves into spin current-induced phenomena, such as spin-Hall magnetoresistance and the spin Seebeck effect within Pt films deposited on a noncollinear magnet, CoCr 2O 4 (CCO),…
We develop a theoretical model for polarization-selective phonon pumping induced by magnon-phonon coupling in a ferromagnetic/non-magnetic acoustic bilayer structure, focusing on the effects arising…
The Schoolkindergarten "Weltentdecker" from Neufahrn b. Freising visited the Walther-Meißner-Institut.
WMI succeeds in fabricating Josephson junction-based parametric devices with exceptionally high quality factors
WMI develops a cryogenic link for Quantum Local Area Networks (QLAN), serving as a backbone for distributed superconducting quantum computing
Spin-based information processing is a viable alternative to charge-based approaches, enabling low-power devices. In magnetically ordered systems, spin information can be transported via the…
The Junior Research Group will advance quantum processor calibration and stabilization using machine learning and quantum sensing.
The European consortium OpenSuperQPlus (OSQ+) is making significant strides toward building Europe’s first 100-qubit quantum computer by 2026.
The distribution of remote entanglement within small- and large-scale quantum networks is becoming a fundamental task as quantum computing and quantum communication mature into more advanced fields.…
We optimize Matrix-Product State (MPS)-based algorithms for simulating quantum circuits with finite fidelity, specifically the Time-Evolving Block Decimation (TEBD) and the Density-Matrix…
We study a generic cavity QED setup under conditions where the coupling between the two-level systems and a single bosonic mode is significantly degraded by low-frequency noise. To overcome this…
We study the collective decay of an initially inverted ensemble of two-level emitters into a squeezed photonic reservoir. By using a quantum-state diffusion approach to unravel the emission process,…
We study the directed transport of bosons along a one dimensional lattice in a dissipative setting, where the hopping is only facilitated by coupling to a Markovian reservoir. By combining numerical…
Universal quantum computers promise to solve computational problems that are beyond the capabilities of known classical algorithms. To realize such quantum hardware on a superconducting material…
We extend the controlled displacement interaction between a qubit and a harmonic oscillator to the multiqubit (qudit) case. We define discrete quadratures of the qudit and show how the qudit state…
Rudolf Gross has been appointed TUM Emeritus of Excellence and becomes a member of the TUM Senior Excellence Faculty (SEF).
Our former Bachelor and Master student Johanna Fischer (now at Spintec Grenoble, France) receives the 2025 EMA Young Scientist Award.
Abrikosov vortices in type-II superconductors critically influence current flow and coherence, thereby imposing fundamental limits on superconducting quantum technologies. Quantum circuits employ…
We study the collective emission of a disordered array of N excited two-level atoms into a one-dimensional photonic waveguide. In the perfectly ordered case, where atoms are spaced by exact integer…
We present a general theoretical framework for evaluating multi-photon processes in periodically driven quantum systems, which have been identified as a versatile tool for engineering and controlling…
One main limiting factor towards achieving high coherence times in superconducting circuits is two level system (TLS) losses. Mitigating such losses requires controlling the formation of native…
We investigate the dynamics of a lasing system that is driven by a current of bosonic (quasi-) particles via a dissipative three-mode mixing process. A semi-classical analysis of this system predicts…
In solid state materials, gradients of the electro-chemical potential, the temperature, or the spin-chemical potential drive the flow of charge, heat, and spin angular momentum, resulting in a net…
Antiferromagnetic Magnonics (m/f/d)
Hybrid-Variable Quantum Microwave Communication (m/f/d)
Researchers have demonstrated the direction-dependent slowdown of
microwave pulses, with potential applications in signal processing and
quantum computing. | Hans Huebl and Matthias Althammer
Interfacial thermal and acoustic phenomena have an important role in quantum science and technology, including in spintronic and spincaloritronic materials and devices. Simultaneous measurements of…
The distribution of entanglement across distant qubits is a central challenge for the operation of scalable quantum computers and large-scale quantum networks. Existing approaches rely on…
Matthias Opel was invited to the MINT-Berufsinformationstag "OsterHASE" at the Humboldt-Gymnasium Vaterstetten, Germany.
The 2025 Nobel Prize in Physics goes to three physicists from Berkeley for their research on quantum phenomena in superconducting Josephson junctions
WMI opened its doors to the general public in the context of the 2025 International Year of Quantum Science and Technology (IYQ)
We describe a novel scheme for the generation of stationary entanglement between two separated qubits that are driven by a purely thermal photon source. While in this scenario the qubits remain in a…
We propose a hybrid quantum computing architecture composed of alternating fluxonium and transmon qubits, that are coupled via transmon tunable couplers. We show that this system offers excellent…
In a phononic quantum network, quantum information is stored and processed within stationary nodes defined by solid-state spins, and the information is routed between nodes by phonons. The phonon…
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…
Diblock copolymer thin films templating two types of magnetic nanoparticles are ternary nanocomposites that can show tunable magnetic behavior depending on the size and magnetic properties of the…
