Technische Universität München
Lehrstuhl für Technische Physik (Prof. Filipp)
Walther-Meißner-Straße 8
85748 Garching b. München
Quantum Computing and Information Processing: In our experiments, we use superconducting qubits, which can be manipulated on short time scales with respect to their coherence times within a cryogenic environment. Thanks to the relatively simple and reliable fabrication there exists a clear path towards a scalable architecture to realize the building blocks of a future quantum computer.
European Physical Journal: Special Topics
Abstract: The recent breakthroughs in the distribution of quantum information and high-precision time and frequency (T&F) signals over long-haul optical fibre networks have transformative potential for…
IEEE Transactions on Microwave Theory and Techniques
Abstract: Fast and high-fidelity qubit readout requires strong coupling between the readout resonator and the feedline. However, such coupling unavoidably enhances qubit decay through the Purcell effect. We…
Communications Materials
Abstract: 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 oxides…
Cryogenics
Abstract: We demonstrate magnetic crosstalk suppression by more than eight orders of magnitude in a cryogenic hybrid platform that combines a spin-ensemble sample volume with a nearby superconducting-qubit…
Quantum 2.0 - Proceedings Quantum 2.0 Conference and Exhibition
Abstract: We present a monolithic AlGaAs/GaAs spot-size converter for InAs quantum dots integrating a PIN-diode stack. Simulations show > 99 % mode-conversion efficiency at 935 nm, enabling robust, low-loss…
Physical Review Applied
Abstract: Scaling up superconducting quantum processors necessitates the use of a high routing density for readout and control lines, relying on low-loss interconnects to maintain design flexibility and device…
Physical Review Applied
Abstract: Multimode superconducting circuits offer a promising platform for engineering robust systems for quantum computation. Previous studies indicate that single-mode devices cannot be engineered to…
Physical Review Applied
Abstract: State-of-the-art single-qubit gates on superconducting transmon qubits can achieve the fidelities required for error-corrected computations; however, parameter fluctuations due to qubit instabilities,…
Quantum
Abstract: 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…
PRX Quantum
Abstract: Protecting qubits from environmental noise while maintaining strong coupling for fast high-fidelity control is a central challenge for quantum information processing. Here, we demonstrate a control…
