100 citations · 240 across the 11 of their papers we have counts for
11 papers
Bias-preserving cat-cat CNOT gate via vacuum-conditional beam-splitter
Yufeng Ye, Connor T. Hann, Kyungjoo Noh +4
Cat qubits can exhibit strong noise bias due to their exponentially enhanced bit-flip times and only polynomially reduced phase-flip times with increasing photon number, which make…
Variable Frequency Pulse Generation from Breathers in Josephson Transmission Lines
Gregory Cunningham, Yufeng Ye, Kaidong Peng +3
Single flux quantum technology has the potential to enhance readout and control of superconducting quantum systems due to their low energy consumption, high speed, and cryogenic op…
Hardware-efficient quantum error correction via concatenated bosonic qubits
Harald Putterman, Kyungjoo Noh, Connor T. Hann +118
In order to solve problems of practical importance, quantum computers will likely need to incorporate quantum error correction, where a logical qubit is redundantly encoded in many…
Near-ultrastrong nonlinear light-matter coupling in superconducting circuits
Yufeng Ye, Jeremy B. Kline, Alec Yen +9
The interaction between an atom and an electromagnetic mode of a resonator is of both fundamental interest and is ubiquitous in quantum technologies. Most prior work studies a line…
Interferometric Purcell suppression of spontaneous emission in a superconducting qubit
Alec Yen, Yufeng Ye, Kaidong Peng +8
In superconducting qubits, suppression of spontaneous emission is essential to achieve fast dispersive measurement and reset without sacrificing qubit lifetime. We show that resona…
Directional emission of a readout resonator for qubit measurement
Alec Yen, Yufeng Ye, Kaidong Peng +8
We propose and demonstrate transmission-based dispersive readout of a superconducting qubit using an all-pass resonator, which preferentially emits readout photons toward the outpu…
Ultrafast Superconducting Qubit Readout with the Quarton Coupler
Yufeng Ye, Jeremy B. Kline, Sean Chen +1
Fast, high-fidelity, and quantum nondemolition (QND) qubit readout is an essential element of quantum information processing. For superconducting qubits, state-of-the-art readout i…
Floquet-Mode Traveling-Wave Parametric Amplifiers
Kaidong Peng, Mahdi Naghiloo, Jennifer Wang +3
Simultaneous ideal quantum measurements of multiple single-photon-level signals would advance applications in quantum information processing, metrology, and astronomy, but require…
Broadband Microwave Isolation with Adiabatic Mode Conversion in Coupled Superconducting Transmission Lines
Mahdi Naghiloo, Kaidong Peng, Yufeng Ye +2
We propose a traveling wave scheme for broadband microwave isolation using parametric mode conversion in conjunction with adiabatic phase matching technique in a pair of coupled no…
Engineering Purely Nonlinear Coupling with the Quarton
Yufeng Ye, Kaidong Peng, Mahdi Naghiloo +2
Strong nonlinear coupling of superconducting qubits and/or photons is a critical building block for quantum information processing. Due to the perturbative nature of the Josephson…
Quantum metamaterial for nondestructive microwave photon counting
Arne L. Grimsmo, Baptiste Royer, John Mark Kreikebaum +4
Detecting traveling photons is an essential primitive for many quantum information processing tasks. We introduce a single-photon detector design operating in the microwave domain,…