87 citations · 133 across the 18 of their papers we have counts for
18 papers
A 0.74-mW K-band Cryogenic SiGe LNA in 130-nm BiCMOS with 14-K Noise Temperature for Scalable Quantum Readout
Xiuhan Chen, Haoling Li, Gun Suer +4
This paper presents a sub-milliwatt K-band cryogenic low-noise amplifier (LNA) implemented in GlobalFoundries (GF) 130CBIC SiGe BiCMOS, intended for a sub-Kelvin qubit readout…
An ultra-broadband axion dark matter experiment
Angelo Esposito, Kin Chung Fong, Lam Hui
We propose a novel broadband strategy to search for axions by leveraging observables controlled by the axion field squared. We present a practical implementation of this concept fo…
Direct Digital-to-Physical Synthesis: From mmWave Transmitter to Qubit Control
Najme Ebrahimi, Haoling Li, Gun Suer +2
The increasing demand for high-speed wireless connectivity and scalable quantum information processing has driven parallel advancements in millimeter-wave (MMW) communication trans…
Observing unconventional superconductivity via kinetic inductance in Weyl semimetal MoTe
Mary Kreidel, Julian Ingham, Xuanjing Chu +10
Identifying the pairing symmetry of unconventional superconductors plays an essential role in the ongoing quest to understand correlated electronic matter. A long-standing approach…
Roadmap: 2D Materials for Quantum Technologies
Qimin Yan, Tongcang Li, Xingyu Gao +29
Two-dimensional (2D) materials have emerged as a versatile and powerful platform for quantum technologies, offering atomic-scale control, strong quantum confinement, and seamless i…
Coherent and compact van der Waals transmon qubits
Jesse Balgley, Jinho Park, Xuanjing Chu +9
State-of-the-art superconducting qubits rely on a limited set of thin-film materials. Expanding their materials palette can improve performance, extend operating regimes, and intro…
Measuring Reactive-Load Impedance with Transmission-Line Resonators Beyond the Perturbative Limit
Xuanjing Chu, Jinho Park, Jesse Balgley +8
We develop an analytic framework to extract circuit parameters and loss tangent from superconducting transmission-line resonators terminated by reactive loads, extending analysis b…
Weyl-Superconductivity revealed by Edge Mode mediated Nonlocal Transport
Wenyao Liu, Gabriel Natale, Camron Farhang +24
Topological superconductivity (TSC) hosts exotic modes enabling error-free quantum computation and low-temperature spintronics. Despite preliminary evidence of edge modes, unambigu…
Engineering Andreev Bound States for Thermal Sensing in Proximity Josephson Junctions
Woochan Jung, Ethan G Arnault, Bevin Huang +7
The thermal response of proximity Josephson junctions (JJs) is governed by the temperature ()-dependent occupation of Andreev bound states (ABS), making them promising candidate…
Crystalline superconductor-semiconductor Josephson junctions for compact superconducting qubits
Jesse Balgley, Jinho Park, Xuanjing Chu +11
The narrow bandgap of semiconductors allows for thick, uniform Josephson junction barriers, potentially enabling reproducible, stable, and compact superconducting qubits. We study…
Measuring kinetic inductance and superfluid stiffness of two-dimensional superconductors using high-quality transmission-line resonators
Mary Kreidel, Xuanjing Chu, Jesse Balgley +8
The discovery of van der Waals superconductors in recent years has generated a lot of excitement for their potentially novel pairing mechanisms. However, their typical atomic-scale…
Superfluid stiffness of twisted multilayer graphene superconductors
Abhishek Banerjee, Zeyu Hao, Mary Kreidel +12
The robustness of the macroscopic quantum nature of a superconductor can be characterized by the superfluid stiffness, , a quantity that describes the energy required to vary…
Ultra-low carrier density superconducting bolometers with single photon sensitivity based on magic-angle twisted bilayer graphene
G. Di Battista, K. C. Fong, A. Diez-Carlon +3
The superconducting (SC) state of magic-angle twisted bilayer graphene (MATBG) shows exceptional properties, as it consists of an unprecedentedly small electron (hole) ensemble of…
Graphene amplifier reaches the quantum-noise limit
Kin Chung Fong
News & Views on the graphene-based Josephson parametric amplifiers.
Wideband Josephson Parametric Amplifier with Integrated Transmission Line Transformer
Leonardo Ranzani, Guilhem Ribeill, Brian Hassick +1
We describe a wide-band Josephson Parametric Amplifier (JPA) that is impedance-matched using an integrated compact superconducting transmission line transformer. The impedance tran…
Miniaturizing transmon qubits using van der Waals materials
Abhinandan Antony, Martin V. Gustafsson, Guilhem J. Ribeill +8
Quantum computers can potentially achieve an exponential speedup versus classical computers on certain computational tasks, as recently demonstrated in systems of superconducting q…
Making high-quality quantum microwave devices with van der Waals superconductors
Abhinandan Antony, Martin V. Gustafsson, Anjaly Rajendran +5
Ultra low-loss microwave materials are crucial for enhancing quantum coherence and scalability of superconducting qubits. Van der Waals (vdW) heterostructure is an attractive platf…
Axion Quasiparticles for Axion Dark Matter Detection
Jan Schütte-Engel, David J. E. Marsh, Alexander J. Millar +7
It has been suggested that certain antiferromagnetic topological insulators contain axion quasiparticles (AQs), and that such materials could be used to detect axion dark matter (D…