156 citations · 468 across the 10 of their papers we have counts for
10 papers
Crosstalk-Robust Quantum Control in Multimode Bosonic Systems
Xinyuan You, Yunwei Lu, Taeyoon Kim +10
High-coherence superconducting cavities offer a hardware-efficient platform for quantum information processing. To achieve universal operations of these bosonic modes, the requisit…
Exploration of superconducting multi-mode cavity architectures for quantum computing
Alessandro Reineri, Silvia Zorzetti, Tanay Roy +1
Superconducting radio-frequency (SRF) cavities coupled to transmon circuits have proven to be a promising platform for building high-coherence quantum information processors. An es…
Systematic Improvements in Transmon Qubit Coherence Enabled by Niobium Surface Encapsulation
Mustafa Bal, Akshay A. Murthy, Shaojiang Zhu +37
We present a novel transmon qubit fabrication technique that yields systematic improvements in T relaxation times. We fabricate devices using an encapsulation strategy that inv…
Experimental verification of the treatment of time-dependent flux in circuit quantization
Jacob Bryon, D. K. Weiss, Xinyuan You +5
Recent theoretical work has highlighted that quantizing a superconducting circuit in the presence of time-dependent flux generally produces Hamiltonian terms proportional to…
High-Order Qubit Dephasing at Sweet Spots by Non-Gaussian Fluctuators: Symmetry Breaking and Floquet Protection
Ziwen Huang, Xinyuan You, Ugur Alyanak +3
Although the Gaussian-noise assumption is widely adopted in the study of qubit decoherence, non-Gaussian noise sources, especially the strong discrete fluctuators, have been detect…
Stabilizing and improving qubit coherence by engineering noise spectrum of two-level systems
Xinyuan You, Ziwen Huang, Ugur Alyanak +3
Superconducting circuits are a leading platform for quantum computing. However, their coherence times are still limited and exhibit temporal fluctuations. Those phenomena are often…
Quantum computing hardware for HEP algorithms and sensing
M. Sohaib Alam, Sergey Belomestnykh, Nicholas Bornman +37
Quantum information science harnesses the principles of quantum mechanics to realize computational algorithms with complexities vastly intractable by current computer platforms. Ty…
Positive- and negative-frequency noise from an ensemble of two-level fluctuators
Xinyuan You, Aashish A. Clerk, Jens Koch
The analysis of charge noise based on the Bloch-Redfield treatment of an ensemble of dissipative two-level fluctuators generally results in a violation of the fluctuation-dissipati…
Experimental realization of an intrinsically error-protected superconducting qubit
Andras Gyenis, Pranav S. Mundada, Agustin Di Paolo +6
Encoding a qubit in logical quantum states with wavefunctions characterized by disjoint support and robust energies can offer simultaneous protection against relaxation and pure de…
Circuit quantization in the presence of time-dependent external flux
Xinyuan You, J. A. Sauls, Jens Koch
Circuit quantization links a physical circuit to its corresponding quantum Hamiltonian. The standard quantization procedure generally assumes any external magnetic flux to be stati…