Normal-ordered perturbative expansion for matter systems interacting with continuous-mode quantum photon fields

Posted by klaurent Berkeley, This Week: Nanoscience

Kavli Affiliate: Birgitta Whaley | Summary:We develop a normal-ordered perturbative expansion method to compute the reduced dynamics of a matter system interacting with a general continuous-mode photon field state. In this expansion, all field correlation functions are automatically normal-ordered, while the free evolution is modified by spontaneous emission. Our normal-ordered expansion elucidates the physical meaning […]


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Input-output formulation of quantum light spectroscopy

Posted by klaurent Berkeley, This Week: Nanoscience

Kavli Affiliate: Birgitta Whaley | Summary:We develop an input-output formulation of quantum light spectroscopy (QLS) by combining the input-output theory, commonly used in quantum optics, with the perturbative expansion method for nonlinear spectroscopy, commonly used in chemical physics. The use of the input-output relation provides physical intuition for how matter systems alter the photon input […]


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Migration and Evolution of giant ExoPlanets (MEEP). III. Twenty-Nine Giant Planets from the TESS Mission

Posted by klaurent MIT, This Week: Astrophysics

Kavli Affiliate: Avi Shporer | Summary:We present the discovery and characterization of 29 hot and warm Jupiter systems transiting bright ($G < 12.8$) FGK stars using TESS data and ground-based photometry and spectroscopy. Through the use of high angular resolution imaging, we discovered three bound stellar companions, named TOI-3988 B, TOI-6171 B, and TOI-7266 B. […]


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Packaged DNA genome sets the long-range electrostatic anisotropy of a virus

Posted by klaurent This Week: Theoretical Physics, UCAS

Kavli Affiliate: Rudolf Podgornik | Summary:Viruses are among the most highly charged objects in biology, and electrostatic interactions permeate nearly every stage of their life cycle. At the same time, an empty icosahedral capsid is almost isotropic as far as the surrounding electrolyte is concerned—its charge distribution is anisotropic only at high multipole order, and […]


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De novo minibinders targeting RH5 achieve nanomolar inhibition of blood-stage malaria replication

Posted by dbos Oxford, This Week: Nanoscience

Kavli Affiliate: Simon DraperJason Hsiao, Melina Shamshoum, Abhiram Chalamalasetty, Jordan R. Barrett, Ricardo Almada-Monter, Elizabeth Tabornal, Emily Wilks, Yi-Zong Lee, Nathan Beutler, Amanda Richard Lukens, Priyan Kapoor, Daisy Chen, Justice Ndihokubwayo, Barnabas G Williams, Kirsty McHugh, David Pulido, Irina Mendes de Sousa, Elizabeth Komives, Emília V. Noormahomed, Ian A. Wilson, Dyann F. Wirth, Thomas Rogers, […]


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Snurportin-1 maintains muscle niche integrity and myogenic progenitor homeostasis

Posted by dbos NTNU, This Week: Neuroscience

  Kavli Affiliate: Emre Yaksi | Authors: Hilal Piril Saracoglu, Marwan Nashabat, Duygu Naz Kutlu, Burak Saribas, Elanur Yilmaz, Seymanur Tur, Hulya Kayserili, Emre Yaksi, Nasrin Nabavizadeh and Nathalie Escande-Beillard | Summary: Loss-of-function variants in SNUPN, encoding the nuclear import factor Snurportin-1 (SPN1) required for spliceosomal small nuclear ribonucleoprotein (snRNP) transport, cause a recently described […]


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Divergent Dopamine Dynamics within the Accumbens Core

Posted by dbos This Week: Neuroscience, UCSF

  Kavli Affiliate: Joshua Berke | Authors: Seongtak Kang, Dennis A Burke, Caroline Kornbrek, Farah Farouq, Huijeong Jeong, Vijay Mohan K Namboodiri and Joshua Berke | Summary: Dopamine in the nucleus accumbens Core powerfully influences motivation and learning, yet the information encoded by Core dopamine remains unresolved. Competing theories typically assume a spatially uniform signal, […]


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VLBI Astrometric Procedure and Performance with CHIME/FRB Outriggers

Posted by klaurent MIT, This Week: Astrophysics

Kavli Affiliate: Kiyoshi Masui | Summary:Precise localizations of fast radio bursts (FRBs) to specific environments within their host galaxies with very-long-baseline interferometry (VLBI) have provided valuable insights into the nature of their progenitors. To date, such localizations have relied primarily on traditional VLBI facilities, whose observational capabilities limit them to targeted follow-up on a small […]


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Two-sample tests for principal eigenvalues and eigenvectors in high-dimensional elliptical factor models

Posted by klaurent Peking, This Week: Astrophysics

Kavli Affiliate: Feng Long| Summary: Changes in principal eigenvalues and eigendirections provide complementary diagnostics of structural instability in factor models, but covariance-based inference can be unreliable under heavy tails. We develop two-sample tests for equality of these features of trace-normalized shape matrices under high-dimensional elliptical factor models. Our approach combines Tyler’s identity with orthogonalization and […]


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GA-NIFS: sRMS, a new method for disentangling resolved and unresolved emission in integral field spectroscopy. Application to distant quasars

Posted by klaurent Cambridge, This Week: Astrophysics

Kavli Affiliate: Roberto Maiolino | Summary:The interpretation of AGN emission-line profiles in type1 AGN is often complicated by the dominance of bright, spatially unresolved nuclear continuum and broad-line region (BLR) emission over narrower and blended components from the narrow-line region (NLR) and the host galaxy. This remains challenging even with integral-field spectroscopy (IFS), as the […]


Continue.. GA-NIFS: sRMS, a new method for disentangling resolved and unresolved emission in integral field spectroscopy. Application to distant quasars