198 citations · 856 across the 20 of their papers we have counts for
20 papers
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…
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…
Ultralow voltage, High-speed, and Energy-efficient Cryogenic Electro-Optic Modulator
Paolo Pintus, Anshuman Singh, Weiqiang Xie +7
Photonic integrated circuits (PICs) at cryogenic temperatures enable a wide range of applications in scalable classical and quantum systems for computing and sensing. A promising a…
Modular tunable coupler for superconducting qubits
Daniel L. Campbell, Archana Kamal, Leonardo Ranzani +2
The development of modular and versatile quantum interconnect hardware is a key next step in the scaling of quantum information platforms to larger size and greater functionality.…
A low-power integrated magneto-optic modulator on silicon for cryogenic applications
Paolo Pintus, Leonardo Ranzani, Sergio Pinna +9
A fundamental challenge of the quantum revolution is to efficiently interface the quantum computing systems operating at cryogenic temperatures with room temperature electronics an…
Trade off-Free Entanglement Stabilization in a Superconducting Qutrit-Qubit System
Tristan Brown, Emery Doucet, Diego Ristè +7
Quantum reservoir engineering is a powerful framework for autonomous quantum state preparation and error correction. However, traditional approaches to reservoir engineering are hi…
Strong parametric dispersive shifts in a statically decoupled multi-qubit cavity QED system
T. Noh, Z. Xiao, K. Cicak +8
Cavity quantum electrodynamics (QED) with in-situ tunable interactions is important for developing novel systems for quantum simulation and computing. The ability to tune the dispe…
Perturbative diagonalization for time-dependent strong interactions
Z. Xiao, E. Doucet, T. Noh +4
We present a systematic method to implement a perturbative Hamiltonian diagonalization based on the time-dependent Schrieffer-Wolff transformation. Applying our method to strong pa…
Efficient qubit measurement with a nonreciprocal microwave amplifier
F. Lecocq, L. Ranzani, G. A. Peterson +5
The act of observing a quantum object fundamentally perturbs its state, resulting in a random walk toward an eigenstate of the measurement operator. Ideally, the measurement is res…
Demonstration of a superconducting nanowire microwave switch
Andrew Wagner, Leonardo Ranzani, Guilhem Ribeill +1
The functionality of a nanowire integrated into a superconducting transmission line acting as a single pole single throw switch is demonstrated. The switch has an instantaneous ban…
Beam Steering with Ultracompact and Low-Power Silicon Resonator Phase Shifters
Hugo Larocque, Leonardo Ranzani, James Leatham +7
Photonic integrated circuit (PIC) phased arrays can be an enabling technology for a broad range of applications including free-space laser communications on compact moving platform…
Microwave measurement beyond the quantum limit with a nonreciprocal amplifier
F. Lecocq, L. Ranzani, G. A. Peterson +6
The measurement of a quantum system is often performed by encoding its state in a single observable of a light field. The measurement efficiency of this observable can be reduced b…
Graphene-based Josephson junction microwave bolometer
Gil-Ho Lee, Dmitri K. Efetov, Woochan Jung +8
Sensitive microwave detectors are critical instruments in radioastronomy, dark matter axion searches, and superconducting quantum information science. The conventional strategy tow…
Cryogenic Memory Architecture Integrating Spin Hall Effect based Magnetic Memory and Superconductive Cryotron Devices
Minh-Hai Nguyen, Guilhem J. Ribeill, Martin Gustafsson +19
One of the most challenging obstacles to realizing exascale computing is minimizing the energy consumption of L2 cache, main memory, and interconnects to that memory. For promising…
Kerr Microresonator Soliton Frequency Combs at Cryogenic Temperatures
Gregory Moille, Xiyuan Lu, Ashutosh Rao +6
We present measurements of silicon nitride nonlinear microresonators and frequency comb generation at cryogenic temperatures as low as 7~K. The resulting two orders of magnitude re…
High-fidelity dissipative engineering using parametric interactions
E. Doucet, F. Reiter, L. Ranzani +1
Established methods for dissipative state preparation typically rely on resolving resonances, limiting the target state fidelity due to competition between the stabilization mechan…
Kinetic Inductance Traveling Wave Amplifiers For Multiplexed Qubit Readout
Leonardo Ranzani, Mustafa Bal, Kin Chung Fong +7
We describe a kinetic inductance traveling-wave (KIT) amplifier suitable for superconducting quantum information measurements and characterize its wideband scattering and noise pro…
Nonreciprocal microwave signal processing with a Field-Programmable Josephson Amplifier
F. Lecocq, L. Ranzani, G. A. Peterson +4
We report on the design and implementation of a Field Programmable Josephson Amplifier (FPJA) - a compact and lossless superconducting circuit that can be programmed \textit{in sit…
Coherent-State Storage and Retrieval Between Superconducting Cavities Using Parametric Frequency Conversion
A. J. Sirois, M. A. Castellanos-Beltran, M. P. DeFeo +5
In superconducting quantum information, machined aluminum superconducting cavities have proven to be a well-controlled, low-dissipation electromagnetic environment for quantum circ…
Graph-based analysis of nonreciprocity in coupled-mode systems
Leonardo Ranzani, José Aumentado
In this work we derive the general conditions for obtaining nonreciprocity in multi-mode parametrically-coupled systems. The results can be applied to a broad variety of optical, m…