307 citations · 550 across the 11 of their papers we have counts for
12 papers
Leakage benchmarking with decohering subgroups in the presence of preparation and measurement errors
Shawn Geller, Tongyu Zhao, Alex Kwiatkowski +3
A common problem with physical qubits is that the state can leak outside the computational subspace. To characterize the problem, it is desirable to measure both the leakage probab…
Constructing an approximate logical Markovian model of consecutive QEC cycles of a stabilizer code
Alex Kwiatkowski, Aaron J. Friedman, Shawn Geller +3
As quantum error correction (QEC) experiments continue to make rapid progress, there is increased interest in designing experiments with guarantees of logical performance. At prese…
Coherent Control of an Optical Quantum Dot Using Phonons and Photons
Ryan A DeCrescent, Zixuan Wang, Joseph T Bush +6
Genuine quantum-mechanical effects are readily observable in modern optomechanical systems comprising bosonic ("classical") optical resonators. Here we describe unique features and…
Security Assumptions in Dispersive-Optics QKD
Ariel Shlosberg, Alex Kwiatkowski, Akira Kyle +1
Quantum key distribution (QKD) seeks to provide a method of generating cryptographically-secure keys between remote parties while guaranteeing unconditional security. Implementatio…
Optimized experiment design and analysis for fully randomized benchmarking
Alex Kwiatkowski, Laurent J. Stephenson, Hannah M. Knaack +6
Randomized benchmarking (RB) is a widely used strategy to assess the quality of available quantum gates in a computational context. RB involves applying known random sequences of g…
Optically Distributing Remote Two-node Microwave Entanglement using Doubly Parametric Quantum Transducers
Akira Kyle, Curtis L. Rau, William D. Warfield +4
Doubly-parametric quantum transducers (DPTs), such as electro-opto-mechanical devices, show promise as quantum interconnects between the optical and microwave domains, thereby enab…
Constraints on Gaussian Error Channels and Measurements for Quantum Communication
Alex Kwiatkowski, Ezad Shojaee, Sristy Agrawal +4
Joint Gaussian measurements of two quantum systems can be used for quantum communication between remote parties, as in teleportation or entanglement swapping protocols. Many types…
Coherent coupling and non-destructive measurement of trapped-ion mechanical oscillators
Pan-Yu Hou, Jenny J. Wu, Stephen D. Erickson +10
Precise quantum control and measurement of several harmonic oscillators, such as the modes of the electromagnetic field in a cavity or of mechanical motion, are key for their use a…
High-fidelity indirect readout of trapped-ion hyperfine qubits
Stephen D. Erickson, Jenny J. Wu, Pan-Yu Hou +8
We propose and demonstrate a protocol for high-fidelity indirect readout of trapped ion hyperfine qubits, where the state of a qubit ion is mapped to a $^{25}\text{…
Entanglement Thresholds of Doubly-Parametric Quantum Transducers
Curtis L. Rau, Akira Kyle, Alex Kwiatkowski +4
Doubly-parametric quantum transducers, such as electro-opto-mechanical devices, are quickly approaching quantum operation as decoherence mechanisms such as thermal noise, loss, and…
High-fidelity laser-free universal control of two trapped ion qubits
R. Srinivas, S. C. Burd, H. M. Knaack +9
Universal control of multiple qubits -- the ability to entangle qubits and to perform arbitrary individual qubit operations -- is a fundamental resource for quantum computation, si…
Direct observation of deterministic macroscopic entanglement
Shlomi Kotler, Gabriel A. Peterson, Ezad Shojaee +9
Quantum entanglement of mechanical systems emerges when distinct objects move with such a high degree of correlation that they can no longer be described separately. Although quant…