Finite-Time Global Optimality Convergence in Deep Neural Actor-Critic Methods for Decentralized Multi-Agent Reinforcement Learning

Posted by dbos This Week: Astrophysics, Tokyo

Kavli Affiliate: Jia Liu | First 5 Authors: Zhiyao Zhang, Myeung Suk Oh, FNU Hairi, Ziyue Luo, Alvaro Velasquez | Summary: Actor-critic methods for decentralized multi-agent reinforcement learning (MARL) facilitate collaborative optimal decision making without centralized coordination, thus enabling a wide range of applications in practice. To date, however, most theoretical convergence studies for existing […]


Continue.. Finite-Time Global Optimality Convergence in Deep Neural Actor-Critic Methods for Decentralized Multi-Agent Reinforcement Learning

Truly Confining Supersymmetric Gauge Theories

Posted by dbos Tokyo

Kavli Affiliate: Hitoshi Murayama | First 5 Authors: Riku Ishikawa, Hitoshi Murayama, Shota Saito, , | Summary: We classify “truly confining” (t-confining) supersymmetric gauge theories, in which no center charges can be screened, and Wilson loops in the fundamental representation are therefore expected to exhibit an area law. In all cases, we identify the condensation […]


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Prototype sub-wavelength structure anti-reflection coating on alumina filters for ground-based CMB telescopes

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Kavli Affiliate: Tomotake Matsumura | First 5 Authors: Kosuke Aizawa, Ryosuke Akizawa, Scott Cray, Shaul Hanany, Shotaro Kawano | Summary: We present designs and fabrication of sub-wavelength anti-reflection (AR) structures on alumina for infrared absorptive filters with passbands near 30, 125, and 250 GHz. These bands are widely used by ground-based instruments measuring the cosmic […]


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A PAH deficit in the starburst core of a distant spiral galaxy

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Kavli Affiliate: John D. Silverman | First 5 Authors: Zhaoxuan Liu, John D. Silverman, Emanuele Daddi, Boris S. Kalita, Annagrazia Puglisi | Summary: We present high-resolution and spatially-matched observations with JWST and ALMA of a starburst galaxy (PACS-830) at $z=1.46$. The NIRCam observations mainly trace the stellar light while the CO ($J$=5–4) observations map the […]


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Search for a dark Higgs boson produced in association with inelastic dark matter at the Belle II experiment

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Kavli Affiliate: T. Higuchi | First 5 Authors: Belle II Collaboration, I. Adachi, L. Aggarwal, H. Ahmed, H. Aihara | Summary: Inelastic dark matter models that have two dark matter particles and a massive dark photon can reproduce the observed relic dark matter density without violating cosmological limits. The mass splitting between the two dark […]


Continue.. Search for a dark Higgs boson produced in association with inelastic dark matter at the Belle II experiment

The Dual Primordial Black Hole Formation Scenario

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Kavli Affiliate: Misao Sasaki | First 5 Authors: Xinpeng Wang, Misao Sasaki, Ying-li Zhang, , | Summary: We report a novel mechanism where two families of primordial black holes (PBHs) may form at nearly the same comoving scales but at two different epochs. It is realized in two-stage inflation where a non-inflationary stage is sandwiched […]


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Late-time suppression of structure growth as a solution for the $S_8$ tension

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Kavli Affiliate: Masahiro Takada | First 5 Authors: Ryo Terasawa, Masahiro Takada, Toshiki Kurita, Sunao Sugiyama, | Summary: The $S_8$ value inferred from the Subaru Hyper Suprime-Cam (HSC) Year 3 cosmic shear data, under the assumption of the flat $Lambda$CDM model, is 2-3$sigma$ lower than that inferred from observations of the early-time universe, such as […]


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A High-Quality Composite Pati-Salam Axion

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Kavli Affiliate: Hitoshi Murayama | First 5 Authors: Tony Gherghetta, Hitoshi Murayama, Pablo Quílez, , | Summary: We present a composite QCD axion model where the Peccei–Quinn (PQ) symmetry emerges as a high-quality, accidental symmetry. The axion potential is only modified by eight-fermion, dimension 12 operators, which if present at the Planck scale, allow for […]


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Search for lepton flavor-violating decay modes $B^0 to K^{ast 0}τ^pmell^mp$ ($ell = e,μ$) with hadronic B-tagging at Belle and Belle II

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Kavli Affiliate: T. Higuchi | First 5 Authors: Belle, Belle II Collaborations, :, I. Adachi, Y. Ahn | Summary: We present the results of a search for the charged-lepton-flavor violating decays $B^0 rightarrow K^{*0}tau^pm ell^{mp}$, where $ell^{mp}$ is either an electron or a muon. The results are based on 365 fb$^{-1}$ and 711 fb$^{-1}$ datasets […]


Continue.. Search for lepton flavor-violating decay modes $B^0 to K^{ast 0}τ^pmell^mp$ ($ell = e,μ$) with hadronic B-tagging at Belle and Belle II