6 citations · 10 across the 10 of their papers we have counts for
10 papers
Dynamically suppressing cavity dephasing induced by frequency fluctuations of a coupled nonlinear mode
Yunwei Lu, Xinyuan You, Ziwen Huang +3
High-coherence superconducting cavities offer a promising platform for quantum information, with long coherence times and negligible intrinsic dephasing. However, cavity control ge…
Two-Level System Spectroscopy from Correlated Multilevel Relaxation in Superconducting Qubits
Tanay Roy, Xinyuan You, David van Zanten +5
Transmon qubits are a cornerstone of modern superconducting quantum computing platforms. Temporal fluctuations of energy relaxation in these qubits are widely attributed to microsc…
Two-tooth bosonic quantum comb for temporal-correlation sensing
Shaojiang Zhu, Xinyuan You, Alexander Romanenko +1
We characterize the causal structure of coherence transport in open bosonic systems using a two-tooth quantum comb. We show that, by mapping sequential interactions between a struc…
Systematic Construction of Time-Dependent Hamiltonians for Microwave-Driven Josephson Circuits
Yao Lu, Tianpu Zhao, André Vallières +13
Time-dependent electromagnetic drives are fundamental for controlling complex quantum systems, including superconducting Josephson circuits. In these devices, accurate time-depende…
Quantum Enhanced Dark-Matter Search with Entangled Fock States in High-Quality Cavities
Benjamin Freiman, Xinyuan You, Andy C. Y. Li +5
We present a quantum-enhanced protocol for detecting wave-like dark matter using an array of entangled superconducting cavities initialized in an -photon Fock state. By dist…
Coherence-Mediated Quantum Thermometry in a Hybrid Circuit-QED Architecture
Shaojiang Zhu, Xinyuan You, Alexander Romanenko +1
Quantum thermometry plays a critical role in the development of low-temperature sensors and quantum information platforms. In this work, we propose and theoretically analyze a hybr…
Ultracoherent superconducting cavity-based multiqudit platform with error-resilient control
Taeyoon Kim, Tanay Roy, Xinyuan You +26
Realizing the promise of quantum computing requires simultaneously increasing Hilbert-space size and coherence times. While qubit-based architectures have long been the dominant pa…
Floquet-engineered fast SNAP gates in weakly coupled circuit-QED systems
Xinyuan You, Andy C. Y. Li, Tanay Roy +5
Superconducting cavities with high quality factors, coupled to a fixed-frequency transmon, provide a state-of-the-art platform for quantum information storage and manipulation. The…
Loss tangent fluctuations due to two-level systems in superconducting microwave resonators
André Vallières, Megan E. Russell, Xinyuan You +10
Superconducting microwave resonators are critical to quantum computing and sensing technologies. Additionally, they are common proxies for superconducting qubits when determining t…
Disentangling the Impact of Quasiparticles and Two-Level Systems on the Statistics of Superconducting Qubit Lifetime
Shaojiang Zhu, Xinyuan You, Ugur Alyanak +8
Temporal fluctuations in the superconducting qubit lifetime, , bring up additional challenges in building a fault-tolerant quantum computer. While the exact mechanisms remain…