64 citations · 186 across the 12 of their papers we have counts for
12 papers
Onset of transmon ionization in microwave single-photon detection
Yuki Nojiri, Kedar E. Honasoge, Achim Marx +2
By strongly driving a transmon-resonator system, the transmon qubit may eventually escape from its cosine-shaped potential. This process is called transmon ionization (TI) and know…
Cryogenic microwave link for quantum local area networks
W. K. Yam, M. Renger, S. Gandorfer +16
Scalable quantum information processing with superconducting circuits is expected to advance from individual processors located in single dilution refrigerators to more powerful di…
Quantum microwave parametric interferometer
F. Kronowetter, F. Fesquet, M. Renger +7
Classical interferometers are indispensable tools for the precise determination of various physical quantities. Their accuracy is bound by the standard quantum limit. This limit ca…
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…
Perspectives of microwave quantum key distribution in open-air
Florian Fesquet, Fabian Kronowetter, Michael Renger +8
One of the cornerstones of quantum communication is the unconditionally secure distribution of classical keys between remote parties. This key feature of quantum technology is base…
The scattering coefficients of superconducting microwave resonators: II. System-bath approach
Qi-Ming Chen, Matti Partanen, Florian Fesquet +8
We describe a unified quantum approach for analyzing the scattering coefficients of superconducting microwave resonators with a variety of geometries. We also generalize the method…
The scattering coefficients of superconducting microwave resonators: I. Transfer-matrix approach
Qi-Ming Chen, Meike Pfeiffer, Matti Partanen +9
We describe a unified classical approach for analyzing the scattering coefficients of superconducting microwave resonators with a variety of geometries. To fill the gap between exp…
Tuning and Amplifying the Interactions in Superconducting Quantum Circuits with Subradiant Qubits
Qi-Ming Chen, Florian Fesquet, Kedar E. Honasoge +7
We propose a tunable coupler consisting of N fixed-frequency qubits, which can tune and even amplify the effective interaction between two superconducting quantum circuits. The tun…
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…
Beyond the standard quantum limit of parametric amplification
M. Renger, S. Pogorzalek, Q. Chen +8
The low-noise amplification of weak microwave signals is crucial for countless protocols in quantum information processing. Quantum mechanics sets an ultimate lower limit of half a…
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…