A Degenerate Singlet-Triplet Qubit with All-Electrical Orthogonal Control

Posted by klaurent Delft

Kavli Affiliate: Menno Veldhorst | Summary:Singlet-triplet qubits offer an attractive encoding for semiconductor quantum computing, combining ancilla-free readout, reduced sensitivity to common-mode noise, and baseband voltage control. However, the Zeeman energy difference $ΔE_mathrmZ$ is typically fixed by local magnetic field gradients or $g$-factor inhomogeneities, leaving the exchange interaction $J$ as the only dynamically tunable parameter. […]


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High-speed, low-noise, multi-megapixel CCDs for next generation X-ray observatories

Posted by klaurent MIT

Kavli Affiliate: Marshall Bautz | Summary:Next generation X-ray observatories require fast, low-noise, low-power, multi-megapixel imaging spectrometers. To meet these demands, the X-ray Astronomy and Observational Cosmology (XOC) Group at Stanford, in partnership with the MIT Kavli Institute and MIT Lincoln Laboratory (MIT-LL), is developing multi-channel X-ray charge-coupled devices (CCDs) and fast readout architectures. We report […]


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SpatialQ: Understanding 3D Gaussian Splatting Scene Quality via Visual-based MLLM

Posted by klaurent Caltech

Kavli Affiliate: Wei Gao| Summary:3D Gaussian Splatting (3DGS) has emerged as an effective representation for novel view synthesis and 3D scene reconstruction, creating an increasing demand for reliable quality assessment. Unlike conventional image quality assessment (IQA), the quality of a 3DGS scene depends not only on the perceptual fidelity of rendered views, but also on […]


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Secure Relay Low-Altitude Networks via Hybrid Fixed-Position and Rotatable Antenna Arrays

Posted by klaurent Caltech

Kavli Affiliate: Wei Gao| Summary:In this paper, a relay network with hybrid fixed-position and rotatable antenna arrays is proposed. The deployment of rotatable arrays in conventional relay networks is considered to provide more secure communications for low-altitude economy applications. Specifically, both the base station and the relay station are equipped with fixed-position antenna arrays and […]


Continue.. Secure Relay Low-Altitude Networks via Hybrid Fixed-Position and Rotatable Antenna Arrays

Secure Relay Low-Altitude Networks via Hybrid Fixed-Position and Rotatable Antenna Arrays

Posted by klaurent Caltech

Kavli Affiliate: Wei Gao| Summary:In this paper, a relay network with hybrid fixed-position and rotatable antenna arrays is proposed. The deployment of rotatable arrays in conventional relay networks is considered to provide more secure communications for low-altitude economy applications. Specifically, both the base station and the relay station are equipped with fixed-position antenna arrays and […]


Continue.. Secure Relay Low-Altitude Networks via Hybrid Fixed-Position and Rotatable Antenna Arrays

Secure Relay Low-Altitude Networks via Hybrid Fixed-Position and Rotatable Antenna Arrays

Posted by klaurent Caltech

Kavli Affiliate: Wei Gao| Summary:In this paper, a relay network with hybrid fixed-position and rotatable antenna arrays is proposed. The deployment of rotatable arrays in conventional relay networks is considered to provide more secure communications for low-altitude economy applications. Specifically, both the base station and the relay station are equipped with fixed-position antenna arrays and […]


Continue.. Secure Relay Low-Altitude Networks via Hybrid Fixed-Position and Rotatable Antenna Arrays

Feedback stabilization of multi-qubit Hamiltonian parameters enabled by single-shot measurement-based sequential Monte Carlo

Posted by klaurent Delft

Kavli Affiliate: Giordano Scappucci | Summary:Fast measurement, signal processing, and accurate estimation of Hamiltonian parameters are essential for feedback control in quantum-classical interface circuitry. However, existing frequentist and Bayesian inference methods typically require a large number of measurements to achieve the accuracy needed to mitigate qubit decoherence. Consequently, feedback control of semiconductor qubits has largely […]


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How to raise a supermassive black hole: interpreting early JWST AGN with the AESOPICA simulations

Posted by klaurent Cambridge

Kavli Affiliate: Roberto Maiolino | Summary:The active galactic nuclei (AGN) uncovered by JWST in the early Universe are highly abundant and seemingly overmassive with respect to local scaling relations, challenging standard models of black hole formation and growth. Yet it remains unclear whether they trace an efficient early growth channel, represent the observable tail of […]


Continue.. How to raise a supermassive black hole: interpreting early JWST AGN with the AESOPICA simulations

How to raise a supermassive black hole: interpreting early JWST AGN with the AESOPICA simulations

Posted by klaurent Cambridge

Kavli Affiliate: Roberto Maiolino | Summary:The active black holes uncovered by JWST in the early Universe are highly abundant and seemingly overmassive with respect to local scaling relations, challenging standard models of black hole formation and growth. Yet it remains unclear whether they trace an efficient early growth channel, the observable tail of a broader […]


Continue.. How to raise a supermassive black hole: interpreting early JWST AGN with the AESOPICA simulations

Microglia extract neuronal proteolytic organelles via skoupocytosis – Copy

Posted by dbos Hopkins

  Kavli Affiliate: Reza Shadmehr | Authors: Jafar Doostmohammadi, Nazanin Mohammadrezaei, Hisham Elseweifi, Alana Chandler, Elijah Taeckens and Reza Shadmehr | Summary: Neurons in the brain are often many synapses away from motoneurons, yet if a movement results in error, each distant neuron needs a teacher that considers its specific contribution to production of that […]


Continue.. Microglia extract neuronal proteolytic organelles via skoupocytosis – Copy