activity
20172026
most citedJosephson parametric converter saturation and higher order effects

42 citations · 121 across the 10 of their papers we have counts for

collaborators

10 papers

cond-mat.mes-hall2026

20 Second Parity Lifetime in an InAs--Pb Tetron Device

Morteza Aghaee, Zulfi Alam, Mariusz Andrzejczuk +162

A central promise of topological quantum computing is that increasing the excitation gap improves device performance significantly. Here, we experimentally validate this principle…

cond-mat.mes-hall2025

Distinct Lifetimes for and Loop Measurements in a Majorana Tetron Device

Morteza Aghaee, Zulfi Alam, Rikke Andersen +164

We present a hardware realization and measurements of a tetron qubit device in a superconductor-semiconductor heterostructure. The device architecture contains two parallel superco…

quant-ph2025

Bias-preserving and error-detectable entangling operations in a superconducting dual-rail system

Nitish Mehta, James D. Teoh, Taewan Noh +69

For useful quantum computation, error-corrected machines are required that can dramatically reduce the inevitable errors experienced by physical qubits. While significant progress…

quant-ph2023★ 9 cited

Demonstrating a superconducting dual-rail cavity qubit with erasure-detected logical measurements

Kevin S. Chou, Tali Shemma, Heather McCarrick +31

A critical challenge in developing scalable error-corrected quantum systems is the accumulation of errors while performing operations and measurements. One promising approach is to…

quant-ph2021★ 1 cited

Realizing all-to-all couplings among detachable quantum modules using a microwave quantum state router

Chao Zhou, Pinlei Lu, Matthieu Praquin +8

One of the primary challenges in realizing large-scale quantum processors is the realization of qubit couplings that balance interaction strength, connectivity, and mode confinemen…

quant-ph2020★ 9 cited

Noise reduction in qubit readout with a two-mode squeezed interferometer

G. Liu, X. Cao, T. -C. Chien +3

Fault-tolerant quantum information processing with flawed qubits and gates requires highly efficient, quantum non-demolition (QND) qubit readout. In superconducting circuits, qubit…

quant-ph2020★ 9 cited

Nearly quantum-limited Josephson-junction Frequency Comb synthesizer

Pinlei Lu, Saeed Khan, Tzu-Chiao Chien +5

While coherently-driven Kerr microcavities have rapidly matured as a platform for frequency comb formation, such microresonators generally possess weak Kerr coefficients; consequen…

quant-ph2019★ 23 cited

Optimizing Josephson-Ring-Modulator-based Josephson Parametric Amplifiers via full Hamiltonian control

Chenxu Liu, Tzu-Chiao Chien, Michael Hatridge +1

Josephson Parametric Amplifiers (JPA) are nonlinear devices that are used for quantum sensing and qubit readout in the microwave regime. While JPAs regularly operate in the quantum…

quant-ph2019★ 28 cited

Multiparametric Amplification and Qubit Measurement with a Kerr-free Josephson Ring Modulator

T. -C. Chien, O. Lanes, C. Liu +6

Josephson-junction based parametric amplifiers have become a ubiquitous component in superconducting quantum machines. Although parametric amplifiers regularly achieve near-quantum…

quant-ph2017★ 42 cited

Josephson parametric converter saturation and higher order effects

G. Liu, T. -C. Chien, X. Cao +4

Microwave parametric amplifiers based on Josephson junctions have become a key component of many quantum information experiments. One key limitation which has not been well predict…