activity
20212023
most citedPerspectives of microwave quantum key distribution in open-air

21 citations · 99 across the 9 of their papers we have counts for

collaborators

9 papers

quant-ph2023★ 13 cited

Demonstration of microwave single-shot quantum key distribution

F. Fesquet, F. Kronowetter, M. Renger +7

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 th…

quant-ph2023★ 10 cited

Imperfect photon detection in quantum illumination

F. Kronowetter, M. Würth, W. Utschick +2

In quantum illumination, various detection schemes have been proposed for harnessing remaining quantum correlations of the entanglement-based resource state. To this date, the only…

quant-ph2023★ 11 cited

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…

quant-ph2023★ 8 cited

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…

quant-ph2022★ 4 cited

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…

quant-ph2022★ 21 cited

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…

quant-ph2021★ 9 cited

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…

quant-ph2021★ 21 cited

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…

quant-ph2021★ 2 cited

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…