For the efficient implementation of quantum algorithms, practical ways to generate many-body entanglement are a basic requirement. Specifically, coupling multiple qubit pairs at once can be
Walther-Meißner-Seminar SS2022
Seminar Programm SS 2022
Time: Friday, 11.15 h Place: Seminar Room 143,
Seminar Programm SS 2022
Time: Friday, 11.15 h Place: Seminar Room 143, Walther-Meißner-Institute,
Connections between crystal chemistry and critical temperature Tc have been in the focus of superconductivity, one of the most widely studied phenomena in physics, chemistry, and materials science
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
Within the project MUNIQC we aim to build a quantum computer demonstrators based on superconducting qubits in close collaboration with the Munich Quantum Valley initiative (MQV). This project is
The parametric coupling of electromagnetic and mechanical degrees of freedom gives rise to a host of optomechanical phenomena. Examples include quantum-limited displacement measurements, sideband
With his work on the experimental optimal control of superconducting qubits he showed how to achieve high fidelity gates on a very short timescale.
Peter Rabl Joins WMI as a New Scientific Director
01 January 2023
We heartly welcome Peter Rabl at WMI as a new Scientific Director.
Peter Rabl, who previously was affiliated with the Technical
Peter Rabl presently is an Assistant Professor at the Technical University of Vienna, where he is leading the research group on Theoretical Quantum Optics (TQO). He also is member of the Erwin
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
We develop analytic and numerical methods for modelling the quantum properties of superconducting circuits, nanomechanical devices, spin ensembles and hybrid quantum systems. Our goal is to identify
Dr. Peter Rabl is Full Professor (Chair) in Physics at the TU Munich and Scientific Director of the Walther-Meißner-Institute (WMI) of the Bavarian Academy of Sciences and Humanities. Peter Rabl
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
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
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
This thesis reports the study of experimental optimal control of superconducting qubits. Common approaches of optimal control utilize numerical models to optimize control shapes that implement
Quantum networks with photons and phonons
The distribution of entanglement between separated nodes of a quantum network is a fundamental task for almost all quantum communication and quantum
Cavity QED and circuit QED in the ultrastrong coupling regime
Quantum electrodynamics (QED) is the fundamental theory for charges interacting with the electromagnetic field. QED is a weakly
Nonequilibrium phase transitions and transport in driven-dissipative systems
While the theory of phase transitions in ground and equilibrium states of condensed matter systems is well established,
The SuperQuLAN project addresses the long-term goal of realizing large-scale Quantum Local Area Networks (QuLANs), where many individual superconducting quantum computing modules are linked by
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
Walther-Meißner-Seminar WS 2022/23
Seminar Program WS 2022/23
Time: Friday, 11.15 h Place: Seminar Room 143,
A 40-year journey towards understanding the Duffing oscillator
26 May 2023
WMI scientists resolve a longstanding puzzle about the Duffing oscillator
A team of researchers from the Bavarian
We introduce a driven-dissipative Floquet model in which a single harmonic oscillator with modulated frequency and decay realizes a non-Hermitian synthetic lattice with an effective electric field
Filipp Group: Open Topics for Master Theses
We are an experimental group working on quantum technologies and quantum information processing with superconducting quantum circuits. We are always
Rabl Group: Open Topics for Master Theses
We are a theory group working on the modeling of quantum information processing and quantum simulation schemes in solid-state and hybrid quantum systems
Walther-Meißner-Seminar SS 2023
Seminar Program SS 2023
Time: Friday, 11.15 h Place: Seminar Room 143,
| Daoquan Zhu and Tuomas Jaako and Qiongyi He and Peter Rabl
| Li, Peng-Bo and Liu, Yong-Chun and Gao, S. -Y. and Xiang, Ze-Liang and Rabl, Peter and Xiao, Yun-Feng and Li, Fu-Li
| Marcos, D. and Widmer, P. and Rico, E. and Hafezi, M. and Rabl, P. and Wiese, U. -J. and Zoller, P.
| Marcos, D. and Rabl, P. and Rico, E. and Zoller, P.
| Andre, A. and Demille, D. and Doyle, J. M. and Lukin, M. D. and Maxwell, S. E. and Rabl, P. and Schoelkopf, R. J. and Zoller, P.
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 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
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
Achieving homogeneous performance metrics between nominally identicalpixels is challenging for the operation of arrays of superconducting nanowiresingle-photon detectors (SNSPDs). Here, local helium
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
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
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
Applied Quantum Theory: quantum communication and quantum computation protocols theory of superconducting qubits and hybrid quantum systems quantum many-body effects in strongly- and
Seminar Program WS 2024/25
Time: Friday, 11.15 h Place: Seminar Room 143, Walther-Meißner-Institute,
Seminar Program WS 2022/23
Time: Friday, 11.15 h Place: Seminar Room 143, Walther-Meißner-Institute,
26 May 2023
WMI scientists resolve a longstanding puzzle about the Duffing oscillator
A team of researchers from the Bavarian Academy of Sciences and Humanities (BAdW) and the Technical
Figure: Wigner function of the steady-state during dissipative phase transition with increasing driving stregth ξ0 (top: theory, bottom: experiment). At small and large driving strength, the
Electrical transport in lateral superconductor ferromagnet hybrids (experiment)
Superconducting spintronics aims to realize novel device concepts utilizing hybrid structures of magnetic materials
Fabrication of a superconducting transmission line in the reflection regime (experiment)
The rare earth spin ensembles are well established by now in the optical domain where the microwave states
Interaction of electronic spin ensembles with propagating quantum microwaves (experiment)
The rare earth spin ensembles are well established by now in the optical domain where the microwave states
We are a theory group working on the modeling of quantum information processing and quantum simulation schemes in solid-state and hybrid quantum systems and we are always looking for highly
