Visual Vibration Tomography: Estimating Interior Material Properties from Monocular Video

Kavli Affiliate: Chiara Daraio | First 5 Authors: Berthy T. Feng, Alexander C. Ogren, Chiara Daraio, Katherine L. Bouman, | Summary: An object’s interior material properties, while invisible to the human eye, determine motion observed on its surface. We propose an approach that estimates heterogeneous material properties of an object from a monocular video of […]


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Competing correlated states around the zero field Wigner crystallization transition of electrons in two-dimensions

Kavli Affiliate: Joseph Falson | First 5 Authors: Joseph Falson, Inti Sodemann, Brian Skinner, Daniela Tabrea, Yusuke Kozuka | Summary: The competition between kinetic energy and Coulomb interactions in electronic systems can lead to complex many-body ground states with competing superconducting, charge density wave, and magnetic orders. Here we study the low temperature phases of […]


Continue.. Competing correlated states around the zero field Wigner crystallization transition of electrons in two-dimensions

Competing correlated states around the zero field Wigner crystallization transition of electrons in two-dimensions

Kavli Affiliate: Joseph Falson | First 5 Authors: Joseph Falson, Inti Sodemann, Brian Skinner, Daniela Tabrea, Yusuke Kozuka | Summary: The competition between kinetic energy and Coulomb interactions in electronic systems can lead to complex many-body ground states with competing superconducting, charge density wave, and magnetic orders. Here we study the low temperature phases of […]


Continue.. Competing correlated states around the zero field Wigner crystallization transition of electrons in two-dimensions

Self-regulating soliton domain walls in microresonators

Kavli Affiliate: Kerry Vahala | First 5 Authors: Heming Wang, Boqiang Shen, Yan Yu, Zhiquan Yuan, Chengying Bao | Summary: Dissipative soliton Kerr frequency combs in microresonators have recently been demonstrated with the self-injection locking process. They have the advantage of turnkey deterministic comb generation and simplifying dark soliton generation in the normal dispersion regime. […]


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Should the Endless Frontier of Federal Science be Expanded?

Kavli Affiliate: Thomas Rosenbaum | First 5 Authors: David Baltimore, Robert Conn, William H Press, Thomas Rosenbaum, David N Spergel | Summary: Scientific research in the United States could receive a large increase in federal funding–up to 100 billion dollars over five years — if proposed legislation entitled the Endless Frontiers Act becomes law. This […]


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Impact of Semiconductor Band Tails and Band Filling on Photovoltaic Efficiency Limits

Kavli Affiliate: Harry A. Atwater | First 5 Authors: Joeson Wong, Stefan T. Omelchenko, Harry A. Atwater, , | Summary: The theoretical maximum efficiency of a solar cell is typically characterized by a detailed balance of optical absorption and emission for a semiconductor in the limit of unity radiative efficiency and an ideal step-function response […]


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Spatiotemporal Imaging of Thickness-Induced Band Bending Junctions

Kavli Affiliate: Harry A. Atwater | First 5 Authors: Joeson Wong, Artur R. Davoyan, Bolin Liao, Andrey Krayev, Kiyoung Jo | Summary: Van der Waals materials exhibit naturally passivated surfaces and can form versatile heterostructures, enabling observation of carrier transport mechanisms not seen in three-dimensional materials. Here we report observation of a "band bending junction", […]


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The Lack of Non-Thermal Motions in Galaxy Cluster Cores

Kavli Affiliate: Sunil Golwala | First 5 Authors: Jack Sayers, Mauro Sereno, Stefano Ettori, Elena Rasia, Weiguang Cui | Summary: We report the non-thermal pressure fraction (Pnt/Ptot) obtained from a three-dimensional triaxial analysis of 16 galaxy clusters in the CLASH sample using gravitational lensing (GL) data primarily from Subaru and HST, X-ray spectroscopic imaging from […]


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Superresolution Reconstruction of Severely Undersampled Point-spread Functions Using Point-source Stacking and Deconvolution

Kavli Affiliate: James Bock | First 5 Authors: Teresa Symons, Michael Zemcov, James Bock, Yun-Ting Cheng, Brendan Crill | Summary: Point-spread function (PSF) estimation in spatially undersampled images is challenging because large pixels average fine-scale spatial information. This is problematic when fine-resolution details are necessary, as in optimal photometry where knowledge of the illumination pattern […]


Continue.. Superresolution Reconstruction of Severely Undersampled Point-spread Functions Using Point-source Stacking and Deconvolution