activity
20172023
most citedInversion of Qubit Energy Levels in Qubit-Oscillator Circuits in the Deep-Strong-Coupling Regime

109 citations · 165 across the 10 of their papers we have counts for

collaborators

10 papers

stat.ML2023

On Estimating the Gradient of the Expected Information Gain in Bayesian Experimental Design

Ziqiao Ao, Jinglai Li

Bayesian Experimental Design (BED), which aims to find the optimal experimental conditions for Bayesian inference, is usually posed as to optimize the expected information gain (EI…

quant-ph2023★ 1 cited

High-frequency suppression of inductive coupling between flux qubit and transmission line resonator

Sahel Ashhab, Ziqiao Ao, Fumiki Yoshihara +2

We perform theoretical calculations to investigate the naturally occurring high-frequency cutoff in a circuit comprising a flux qubit coupled inductively to a transmission line res…

cs.IT2023★ 6 cited

Entropy Estimation via Uniformization

Ziqiao Ao, Jinglai Li

Entropy estimation is of practical importance in information theory and statistical science. Many existing entropy estimators suffer from fast growing estimation bias with respect…

quant-ph2023★ 15 cited

Extremely large Lamb shift in a deep-strongly coupled circuit QED system with a multimode resonator

Ziqiao Ao, Sahel Ashhab, Fumiki Yoshihara +5

We report experimental and theoretical results on the extremely large Lamb shift in a multimode circuit quantum electrodynamics (QED) system in the deep-strong coupling (DSC) regim…

econ.GN2022★ 3 cited

Skill requirements in job advertisements: A comparison of skill-categorization methods based on explanatory power in wage regressions

Ziqiao Ao, Gergely Horvath, Chunyuan Sheng +2

In this paper, we compare different methods to extract skill requirements from job advertisements. We consider three top-down methods that are based on expert-created dictionaries…

econ.GN2022★ 16 cited

Is Decentralized Finance Actually Decentralized? An Interdisciplinary Framework Integrating Network Theory, Agent-Based Simulation, and Longitudinal Evidence from Aave, GHO Issuance, and Cross-Chain Expansion

Ziqiao Ao, Lin William Cong, Gergely Horvath +1

Decentralized finance (DeFi) can broaden access while leaving activity, network position, and infrastructure concentrated. We develop a four-dimensional framework for participation…

quant-ph2021★ 9 cited

Deterministic three-photon down-conversion by a passive ultrastrong cavity-QED system

Kazuki Koshino, Tomohiro Shitara, Ziqiao Ao +1

In ultra- and deep-strong cavity quantum electrodynamics (QED) systems, many intriguing phenomena that do not conserve the excitation number are expected to occur. In this study, w…

stat.CO2021

Inverse Gaussian Process regression for likelihood-free inference

Hongqiao Wang, Ziqiao Ao, Tengchao Yu +1

In this work we consider Bayesian inference problems with intractable likelihood functions. We present a method to compute an approximate of the posterior with a limited number of…

stat.CO2020★ 6 cited

An approximate KLD based experimental design for models with intractable likelihoods

Ziqiao Ao, Jinglai Li

Data collection is a critical step in statistical inference and data science, and the goal of statistical experimental design (ED) is to find the data collection setup that can pro…

quant-ph2017★ 109 cited

Inversion of Qubit Energy Levels in Qubit-Oscillator Circuits in the Deep-Strong-Coupling Regime

Fumiki Yoshihara, Tomoko Fuse, Ziqiao Ao +6

We report on experimentally measured light shifts of superconducting flux qubits deep-strongly coupled to LC oscillators, where the coupling constants are comparable to the qubit a…