Emergent gauge flux in QED$_3$ with flavor chemical potential: application to magnetized U(1) Dirac spin liquids

Posted by klaurent This Week: Theoretical Physics, UCSB

Kavli Affiliate: Leon Balents | First 5 Authors: Chuang Chen, Chuang Chen, , , | Summary: We design a lattice model of non-compact U(1) gauge field coupled to fermions with a flavor chemical potential and solve it with large-scale determinant quantum Monte Carlo simulations. For zero flavor chemical potential, the model realizes three-dimensional quantum electrodynamics […]


Continue.. Emergent gauge flux in QED$_3$ with flavor chemical potential: application to magnetized U(1) Dirac spin liquids

Oscillations and parity violation in gravitational wave background from extra tensor modes

Posted by klaurent This Week: Astrophysics, Tokyo

Kavli Affiliate: Misao Sasaki | First 5 Authors: Jaume Garriga, Jaume Garriga, , , | Summary: Spectator fields which provide additional tensor degrees of freedom, on top of the standard metric tensor perturbations, can produce significant amounts of gravitational waves (GWs). Employing the effective field theory approach for spin-2 fields, we find a universal prediction […]


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Warm, water-depleted rocky exoplanets with surface ionic liquids: A proposed class for planetary habitability

Posted by klaurent MIT, This Week: Astrophysics

Kavli Affiliate: Sara Seager | First 5 Authors: , , , , | Summary: The discovery of thousands of exoplanets and the emergence of telescopes capable of exoplanet atmospheric characterization have intensified the search for habitable worlds. Due to selection biases, many exoplanets under study are planets deemed inhospitable because their surfaces are too warm […]


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Derivation from classical Majorana–Bloch equation to quantum von Neumann equation for any angular momenta in coherent states

Posted by klaurent Caltech, This Week: Nanoscience

Kavli Affiliate: Lihong V. Wang | First 5 Authors: Lihong V. Wang, Lihong V. Wang, , , | Summary: After publishing the derivation from the classical Bloch equation to the quantum von Neumann equation to the Schr"odinger–Pauli equation for spin-1/2, we proposed renaming the Bloch equation to the Majorana–Bloch equation because Majorana’s work predated Bloch’s […]


Continue.. Derivation from classical Majorana–Bloch equation to quantum von Neumann equation for any angular momenta in coherent states

ReconDreamer-RL: Enhancing Reinforcement Learning via Diffusion-based Scene Reconstruction

Posted by klaurent This Week: Theoretical Physics, UCAS

Kavli Affiliate: Zheng Zhu | First 5 Authors: Chaojun Ni, Chaojun Ni, , , | Summary: Reinforcement learning for training end-to-end autonomous driving models in closed-loop simulations is gaining growing attention. However, most simulation environments differ significantly from real-world conditions, creating a substantial simulation-to-reality (sim2real) gap. To bridge this gap, some approaches utilize scene reconstruction […]


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Sensitivity of an Early Dark Matter Search using the Electromagnetic Calorimeter as a Target for the Light Dark Matter eXperiment

Posted by klaurent Chicago, This Week: Astrophysics

Kavli Affiliate: Gordan Krnjaic | First 5 Authors: LDMX Collaboration, LDMX Collaboration, , , | Summary: The Light Dark Matter eXperiment (LDMX) is proposed to employ a thin tungsten target and a multi-GeV electron beam to carry out a missing momentum search for the production of dark matter candidate particles. We study the sensitivity for […]


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WideSearch: Benchmarking Agentic Broad Info-Seeking

Posted by klaurent Peking, This Week: Astrophysics

Kavli Affiliate: Ke Wang | First 5 Authors: Ryan Wong, Ryan Wong, , , | Summary: From professional research to everyday planning, many tasks are bottlenecked by wide-scale information seeking, which is more repetitive than cognitively complex. With the rapid development of Large Language Models (LLMs), automated search agents powered by LLMs offer a promising […]


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Vector meson dominance in photon structure functions at small $x$ from holography

Posted by klaurent Caltech

Kavli Affiliate: Wei Gao | First 5 Authors: Wei Gao, Wei Gao, , , | Summary: We investigate the photon structure functions via the photon-photon and photon-vector meson scattering within the framework of holographic QCD, focusing on the small Bjorken $x$ region and assuming that the Pomeron exchange dominates. The quasi-real photon structure functions are […]


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Time Ordering Effects and Destruction of Quasiparticles in Two-dimensional Holographic CFTs

Posted by klaurent UCAS

Kavli Affiliate: Masahiro Nozaki | First 5 Authors: Weibo Mao, Weibo Mao, , , | Summary: In this paper, we investigate the entanglement dynamics induced by a composite operator, defined as the local operator evolved with the time evolution operator constructed of the Euclidean and Lorentzian ones. The systems under consideration are described by two-dimensional […]


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