Search for dark-photon dark matter in the SuperMAG geomagnetic field dataset

Kavli Affiliate: Peter W. Graham | First 5 Authors: Michael A. Fedderke, Peter W. Graham, Derek F. Jackson Kimball, Saarik Kalia, | Summary: In our recent companion paper [arXiv:2106.00022], we pointed out a novel signature of ultralight kinetically mixed dark-photon dark matter. This signature is a quasi-monochromatic, time-oscillating terrestrial magnetic field that takes a particular […]


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Confluence in quantum K-theory of weak Fano manifolds and q-oscillatory integrals for toric manifolds

Kavli Affiliate: Todor Milanov | Summary:For a smooth projective variety whose anti-canonical bundle is nef, we prove confluence of the small $K$-theoretic $J$-function, i.e., after rescaling appropriately the Novikov variables, the small $K$-theoretic $J$-function has a limit when $qto 1$, which coincides with the small cohomological $J$-function. Furthermore, in the case of a Fano toric […]


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Tomographic Imaging by a Si/CdTe Compton Camera for In-111 and I-131 Radionuclides

Kavli Affiliate: Tadashi Orita | Summary:Tomographic imaging with radionuclides commonly used in nuclear medicine, such as $^111$In (171 and 245 keV) and $^131$I (364 keV), is in high demand for medical applications and small animal imaging. The Si/CdTe Compton camera with its high angular and high energy resolutions is an especially promising detector to extend […]


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Demonstration of universal control between non-interacting qubits using the Quantum Zeno effect

Kavli Affiliate: K. Birgitta Whaley | First 5 Authors: Eliya Blumenthal, Chen Mor, Asaf A. Diringer, Leigh S. Martin, Philippe Lewalle | Summary: The Zeno effect occurs in quantum systems when a very strong measurement is applied, which can alter the dynamics in non-trivial ways. Despite being dissipative, the dynamics stay coherent within any degenerate […]


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Low levels of sulphur dioxide contamination of Venusian phosphine spectra

Kavli Affiliate: Sara Seager | First 5 Authors: Jane S. Greaves, Paul B. Rimmer, Anita M. S. Richards, Janusz J. Petkowski, William Bains | Summary: New analysis is presented of the 1.1 mm wavelength absorption lines in Venus’ atmosphere that suggested the presence of phosphine. We retrieve a sulphur dioxide observation from the JCMT archive […]


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The air over there: exploring exoplanet atmospheres

Kavli Affiliate: Laura Schaefer | First 5 Authors: Laura Schaefer, Vivien Parmentier, , , | Summary: Atmospheric compositions for rocky exoplanets will depend strongly on the bulk planetary composition and the orbital position of the planet. Non-traditional gases may be present in the atmospheres of exceptionally hot planets. Atmospheres of more clement planets will depend […]


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ECG-Based Heart Arrhythmia Diagnosis Through Attentional Convolutional Neural Networks

Kavli Affiliate: Xiang Zhang | First 5 Authors: Ziyu Liu, Xiang Zhang, , , | Summary: Electrocardiography (ECG) signal is a highly applied measurement for individual heart condition, and much effort have been endeavored towards automatic heart arrhythmia diagnosis based on machine learning. However, traditional machine learning models require large investment of time and effort […]


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IQ Photonic Receiver for Coherent Imaging with a Scalable Aperture

Kavli Affiliate: Ali Hajimiri | Summary:Silicon photonics (SiP) integrated coherent image sensors offer higher sensitivity and improved range-resolution-product compared to direct detection image sensors such as CCD and CMOS devices. Previous generation of SiP coherent imagers suffer from relative optical phase fluctuations between the signal and reference paths, which results in random phase and amplitude […]


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IQ Photonic Receiver for Coherent Imaging with a Scalable Aperture

Kavli Affiliate: Ali Hajimiri | First 5 Authors: Aroutin Khachaturian, Reza Fatemi, Ali Hajimiri, , | Summary: Silicon photonics (SiP) integrated coherent image sensors offer higher sensitivity and improved range-resolution-product compared to direct detection image sensors such as CCD and CMOS devices. Previous generation of SiP coherent imagers suffer from relative optical phase fluctuations between […]


Continue.. IQ Photonic Receiver for Coherent Imaging with a Scalable Aperture