| Autor: |
Esposito Martina, Rahamim Joseph, Patterson Andrew, Mergenthaler Matthias, Wills James, Campanaro Giulio, Tsunoda Takahiro, Spring Peter, Sosnina Sophia, Jebari Salha, Ratter Kitty, Tancredi Giovanna, Vlastakis Brian, Leek Peter |
| Jazyk: |
angličtina |
| Rok vydání: |
2019 |
| Předmět: |
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| Zdroj: |
EPJ Web of Conferences, Vol 198, p 00008 (2019) |
| Druh dokumentu: |
article |
| ISSN: |
2100-014X |
| DOI: |
10.1051/epjconf/201919800008 |
| Popis: |
Josephson parametric amplification is a tool of paramount importance in circuit-QED especially for the quantum-noise-limited single-shot read-out of superconducting qubits. We developed a Josephson parametric amplifier (JPA) based on a lumped-element LC resonator, in which the inductance L is composed by a geometric inductance and an array of 4 superconducting quantum interference devices (SQUIDs). We characterized the main figures of merit of the device, obtaining a −3 dB bandwidth BW = 15 MHz for a gain G = 21 dB and a 1 dB compression point P1dB = −115 dBm. The obtained results are promising for the future use of such JPA as the first stage of amplification for single-shot readout of superconducting qubits. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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