139 citations · 268 across the 12 of their papers we have counts for
12 papers
Heralded Leakage Detection with Preserved Computational-State Coherence in a Fixed-Frequency Transmon
Takeaki Miyamura, Zhiling Wang, Peter A. Spring +5
Leakage out of the computational subspace is a major error mechanism in superconducting quantum processors. Detecting leakage without disturbing the encoded quantum information can…
High-gain and large-bandwidth Josephson parametric amplifier influenced by Fabry-Pérot interference
Shingo Kono, Jesper Ilves, Arjan F. van Loo +8
Quantum-limited parametric amplifiers are essential components for many quantum technologies operating in the microwave domain. Achieving both high gain and broad bandwidth, howeve…
Temporal-Mode Engineering for Multiplexed Microwave Photons and Mode-Selective Quantum State Transfer
Keika Sunada, Takeaki Miyamura, Kohei Matsuura +4
Quantum communication between distant superconducting qubits on separate chips using itinerant microwave photons has been studied to realize distributed quantum information process…
Deterministic Quantum Communication Between Fixed-Frequency Superconducting Qubits via Broadband Resonators
Takeaki Miyamura, Zhiling Wang, Kohei Matsuura +5
Quantum communication between remote chips is essential for realizing large-scale superconducting quantum computers. For such communication, itinerant microwave photons propagating…
Generation of frequency-bin-encoded dual-rail cluster states via time-frequency multiplexing of microwave photonic qubits
Zhiling Wang, Takeaki Miyamura, Yoshiki Sunada +4
Cluster states are a class of multi-qubit entangled states with broad applications such as quantum metrology and one-way quantum computing. Here, we present a protocol to generate…
Generation of Frequency-Tunable Shaped Single Microwave Photons Using a Fixed-Frequency Superconducting Qubit
Takeaki Miyamura, Yoshiki Sunada, Zhiling Wang +3
Scaling up a superconducting quantum computer will likely require quantum communication between remote chips, which can be implemented using an itinerant microwave photon in a tran…
Efficient tomography of microwave photonic cluster states
Yoshiki Sunada, Shingo Kono, Jesper Ilves +6
Entanglement among a large number of qubits is a crucial resource for many quantum algorithms. Such many-body states have been efficiently generated by entangling a chain of itiner…
Photon-noise-tolerant dispersive readout of a superconducting qubit using a nonlinear Purcell filter
Yoshiki Sunada, Kenshi Yuki, Zhiling Wang +7
Residual noise photons in a readout resonator become a major source of dephasing for a superconducting qubit when the resonator is optimized for a fast, high-fidelity dispersive re…
Fast readout and reset of a superconducting qubit coupled to a resonator with an intrinsic Purcell filter
Yoshiki Sunada, Shingo Kono, Jesper Ilves +4
Coupling a resonator to a superconducting qubit enables various operations on the qubit, including dispersive readout and unconditional reset. The speed of these operations is limi…
On-demand generation and characterization of a microwave time-bin qubit
Jesper Ilves, Shingo Kono, Yoshiki Sunada +4
Superconducting circuits offer a scalable platform for the construction of large-scale quantum networks where information can be encoded in multiple temporal modes of propagating m…
Qubit Measurement by Multichannel Driving
Joni Ikonen, Jan Goetz, Jesper Ilves +10
We theoretically propose and experimentally implement a method of measuring a qubit by driving it close to the frequency of a dispersively coupled bosonic mode. The separation of t…
Optomechanical measurement of a millimeter-sized mechanical oscillator near the quantum limit
J. T. Santos, J. Li, J. Ilves +2
Cavity optomechanics is a tool to study the interaction between light and micromechanical motion. Here we observe near-quantum limited optomechanical physics in a truly macroscopic…