Fast Single Nitrogen-Vacancy Center Ramsey Characterization using a Physics-Informed Neural Network

Posted by klaurent Cornell

Kavli Affiliate: Gregory D. Fuchs | Summary:Precise characterization of the local spin environment of single diamond nitrogen-vacancy (NV) centers is crucial for advancing quantum sensing, quantum networking, and the optimization of quantum materials. However, single NV center fluorescence measurements requires long averaging times to obtain clean data that is suitable for conventional model fitting, and […]


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NVRNet: Deep Learning Model for Fast Nitrogen Vacancy Characterization under Room Temperature

Posted by klaurent Cornell

Kavli Affiliate: Gregory D. Fuchs | Summary:Characterization of the local spin environment of single diamond nitrogen-vacancy centers is a critical task for quantum sensing, quantum networking, and diamond materials optimization. We introduce NVRNet, a physics-informed simulation-to-reality pipeline that maps a fast acquisition, noisy Ramsey photoluminescence (PL) trace to a denoised waveform as well as outputting […]


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Imaging Harmonic Generation of Magnons

Posted by klaurent Cornell

Kavli Affiliate: Katja C. Nowack | Summary:This work combines theory and experiment to examine the mechanisms underlying the harmonic generation of magnons. We develop a nonlinear spin-wave framework that is directly analogous to harmonic generation in nonlinear optics, and combine it with scanning nitrogen-vacancy (NV) center magnetometry to image and quantify magnonic harmonic generation in […]


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Readout-induced degradation of transmon lifetimes: interplay of TLSs and qubit spectral reshaping

Posted by klaurent Caltech

Kavli Affiliate: Oskar Painter | Summary:Measurement backaction degrades dispersive readout of superconducting qubits even at modest drive strengths, often via the reduction of qubit lifetimes during readout. In this work, we theoretically and experimentally study this degradation and show how it can result from the interplay between detuned two-level systems (TLSs) and a drive-renormalized qubit […]


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AMD Versal AI-Engines for fixed latency environments

Posted by klaurent Chicago

Kavli Affiliate: David W. Miller | Summary:Complex, high-throughput data acquisition and processing systems, such as those used in high-energy physics experiments, are increasingly moving sophisticated pattern recognition and data compression algorithms closer to the sensors themselves. To meet these needs, programmable device manufacturers offer multi-silicon die packages that commonly include dedicated co-processors within the same […]


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Prevalent elongated galaxies in the early Universe evidenced by stellar kinematics

Posted by klaurent Peking

Kavli Affiliate: Yingjie Peng | Summary:The Universe is now extensively populated by discy galaxies with coherent galaxy-wise stellar rotation. This disc prevalence has been deemed a late-time phenomenon because the penetrating cold gaseous streams in the early Universe ($zgtrsim 2$) fuel the star formation in galaxies too intensively to allow for thin disc formation. However, […]


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