94 citations · 392 across the 18 of their papers we have counts for
18 papers
Mitigating crosstalk errors for simultaneous single-qubit gates on a superconducting quantum processor
Jaap J. Wesdorp, Eric Hyyppä, Joona Andersson +61
Single-qubit gates on superconducting quantum processors are typically implemented using microwave pulses applied through dedicated control lines. However, these microwave pulses m…
Simulation and Benchmarking of Real Quantum Hardware
T. Piskor, M. Schöndorf, M. Bauer +5
The effects of noise are one of the most important factors to consider when it comes to quantum computing in the noisy intermediate-scale quantum computing (NISQ) era that we are c…
Quantum algorithms for simulating systems coupled to bosonic modes using a hybrid resonator-qubit quantum computer
Juha Leppäkangas, Pascal Stadler, Dmitry Golubev +14
Modeling composite systems of spins or electrons coupled to bosonic modes is of significant interest for many fields of applied quantum physics and chemistry. A quantum simulation…
Quantum error detection in qubit-resonator star architecture
Florian Vigneau, Sourav Majumder, Aniket Rath +13
Achieving industrial quantum advantage is unlikely without the use of quantum error correction (QEC). Other QEC codes beyond surface code are being experimentally studied, such as…
A Superconducting Qubit-Resonator Quantum Processor with Effective All-to-All Connectivity
Michael Renger, Jeroen Verjauw, Nicola Wurz +62
In this work we introduce a superconducting quantum processor architecture that uses a transmission-line resonator to implement effective all-to-all connectivity between six transm…
On-Premises Superconducting Quantum Computer for Education and Research
Jami Rönkkö, Olli Ahonen, Ville Bergholm +13
With a growing interest in quantum technology globally, there is an increasing need for accessing relevant physical systems for education and research. In this paper we introduce a…
Flow of quantum correlations in noisy two-mode squeezed microwave states
M. Renger, S. Pogorzalek, F. Fesquet +10
We study nonclassical correlations in propagating two-mode squeezed microwave states in the presence of noise. We focus on two different types of correlations, namely, quantum enta…
Quantum behavior of a superconducting Duffing oscillator at the dissipative phase transition
Qi-Ming Chen, Michael Fischer, Yuki Nojiri +8
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…
Experimental quantum teleportation of propagating microwaves
K. G. Fedorov, M. Renger, S. Pogorzalek +9
The modern field of quantum communication thrives on promise to deliver efficient and unconditionally secure ways to exchange information by exploiting quantum laws of physics. Her…
In-situ tunable nonlinearity and competing signal paths in coupled superconducting resonators
Michael Fischer, Qi-Ming Chen, Christian Besson +10
We have fabricated and studied a system of two tunable and coupled nonlinear superconducting resonators. The nonlinearity is introduced by galvanically coupled dc-SQUIDs. We simula…
Sideband-resolved resonator electromechanics on the single-photon level based on a nonlinear Josephson inductance
Philip Schmidt, Mohammad T. Amawi, Stefan Pogorzalek +4
Light-matter interaction in optomechanical systems is the foundation for ultra-sensitive detection schemes [1,2] as well as the generation of phononic and photonic quantum states […
Quantum Fourier Transform in Oscillating Modes
Qi-Ming Chen, Frank Deppe, Re-Bing Wu +9
Quantum Fourier transform (QFT) is a key ingredient of many quantum algorithms where a considerable amount of ancilla qubits and gates are often needed to form a Hilbert space larg…
Secure quantum remote state preparation of squeezed microwave states
S. Pogorzalek, K. G. Fedorov, M. Xu +10
Quantum communication protocols based on nonclassical correlations can be more efficient than known classical methods and offer intrinsic security over direct state transfer. In pa…
Quantum probe of an on-chip broadband interferometer for quantum microwave photonics
P. Eder, T. Ramos, J. Goetz +11
Quantum microwave photonics aims at generating, routing, and manipulating propagating quantum microwave fields in the spirit of optical photonics. To this end, the strong nonlinear…
Compact 3D quantum memory
Edwar Xie, Frank Deppe, Michael Renger +8
Superconducting 3D microwave cavities offer state-of-the-art coherence times and a well controlled environment for superconducting qubits. In order to realize at the same time fast…
Parity-Engineered Light-Matter Interaction
Jan Goetz, Frank Deppe, Kirill G. Fedorov +6
The concept of parity describes the inversion symmetry of a system and is of fundamental relevance in the standard model, quantum information processing, and field theory. In quant…
Flux-driven Josephson parametric amplifiers: Hysteretic flux response and nondegenerate gain measurements
Stefan Pogorzalek, Kirill G. Fedorov, Ling Zhong +11
Josephson parametric amplifiers (JPA) have become key devices in quantum science and technology with superconducting circuits. In particular, they can be utilized as quantum-limite…
Photon Statistics of Propagating Thermal Microwaves
J. Goetz, S. Pogorzalek, F. Deppe +7
In experiments with superconducting quantum circuits, characterizing the photon statistics of propagating microwave fields is a fundamental task. We quantify the ph…