4 papers
Fabrication and Characterization of Impedance-transformed Josephson Parametric Amplifier
Zhengyang Mei, Xiaohui Song, Xueyi Guo +10
In this paper, we introduce a method of using a double-layer resist lift-off process to prepare the capacitor dielectric layer for fabricating impedance-engineered Josephson parame…
Topological eigenvalues braiding and quantum state transfer near a third-order exceptional point
He Zhang, Tong Liu, Zhongcheng Xiang +3
Non-Hermitian systems exhibit a variety of unique features rooted in the presence of exceptional points (EP). The distinct topological structure in the proximity of an EP gives ris…
Dark photon constraints from a 7.139 GHz cavity haloscope experiment
Dong He, Jie Fan, Xin Gao +23
The dark photon is a promising candidate for the dark matter which comprises most of the matter in our visible Universe. Via kinetic mixing with the Standard Model it can also be r…
Calibration of the Cryogenic Measurement System of a Resonant Haloscope Cavity
Dong He, Jie Fan, Xin Gao +23
Possible light bosonic dark matter interactions with the Standard Model photon have been searched by microwave resonant cavities. In this paper, we demonstrate the cryogenic readou…