Photonic-Crystal Josephson Traveling-Wave Parametric Amplifier

Autor: Nicolas Roch, Wiebke Hasch-Guichard, Denis M. Basko, Remy Dassonneville, Javier Puertas Martinez, Sebastien Leger, Luca Planat, Cécile Naud, A. Ranadive, Olivier Buisson
Přispěvatelé: Circuits électroniques quantiques Alpes (QuantECA), Institut Néel (NEEL), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Laboratoire de physique et modélisation des milieux condensés (LPM2C ), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)
Rok vydání: 2020
Předmět:
Zdroj: Physical Review X
Physical Review X, American Physical Society, 2020, 10 (2), pp.021021. ⟨10.1103/PhysRevX.10.021021⟩
Physical Review X, Vol 10, Iss 2, p 021021 (2020)
ISSN: 2160-3308
Popis: An amplifier combining noise performances as close as possible to the quantum limit with large bandwidth and high saturation power is highly desirable for many solid state quantum technologies such as high fidelity qubit readout or high sensitivity electron spin resonance for example. Here we introduce a new Traveling Wave Parametric Amplifier based on Superconducting QUantum Interference Devices. It displays a 3 GHz bandwidth, a -102 dBm 1-dB compression point and added noise near the quantum limit. Compared to previous state-of-the-art, it is an order of magnitude more compact, its characteristic impedance is in-situ tunable and its fabrication process requires only two lithography steps. The key is the engineering of a gap in the dispersion relation of the transmission line. This is obtained using a periodic modulation of the SQUID size, similarly to what is done with photonic crystals. Moreover, we provide a new theoretical treatment to describe the non-trivial interplay between non-linearity and such periodicity. Our approach provides a path to co-integration with other quantum devices such as qubits given the low footprint and easy fabrication of our amplifier.
Comment: 6 pages, 4 figures, Appendixes
Databáze: OpenAIRE