7 papers
A K-band Kinetic Inductance Parametric Amplifier Near the Quantum Limit
Chaofan Wang, Shihan Liu, Yufeng Wu +4
Advancing superconducting quantum devices to higher operating frequencies broadens their functionality and enables operation at elevated temperatures, but it also requires near-qua…
Simultaneous Type-0 and Type-I Optical Parametric Oscillation in Submicron Poled Thin-Film Lithium Niobate
Fengyan Yang, Hong X. Tang
We demonstrate dual optical parametric oscillations in a thin-film lithium niobate microring resonator enabled by polarization-insensitive submicron periodic poling. Under degenera…
Collective Strong Coupling of Thermal Atoms to Integrated Microring Resonators
Xiaoyu Cheng, Benyamin Shnirman, Alexandra Köpf +5
Strong coupling between atomic ensembles and high-quality optical cavities enables collective and nonlinear phenomena that are central to cavity quantum electrodynamics (cQED). Alt…
Cryogenic Loss Limits in Microwave Epitaxial AlN Acoustic Resonators
Hemant Gulupalli, Navnil Choudhury, Jiacheng Xie +6
Aluminum nitride (AlN)-based thin-film bulk acoustic wave resonators (FBARs) are promising compact platforms for 6G communications and quantum memory hardware, enabled by their int…
A frequency-agile microwave-optical interface for superconducting qubits
Yufeng Wu, Yiyu Zhou, Haoqi Zhao +4
Superconducting quantum processors operate at microwave frequencies in millikelvin environments, making it challenging to interconnect distant nodes using conventional microwave wi…
Hidden Structural Variants in ALD NbN Superconducting Trilayers Revealed by Atomistic Analysis
Prachi Garg, Danqing Wang, Hong X. Tang +1
Microscopic inhomogeneity within superconducting films is a critical bottleneck hindering the performance and scalability of quantum circuits. All-nitride Josephson Junctions (JJs)…