Tootfinder

The Discovery of Little Red Dots in the Local Universe: Signatures of Cool Gas Envelopes
Xiaojing Lin, Xiaohui Fan, Zheng Cai, Fuyan Bian, Hanpu Liu, Fengwu Sun, Yilun Ma, Jenny E. Greene, Michael A. Strauss, Richard Green, Jianwei Lyu, Jaclyn B. Champagne, Andy D. Goulding, Kohei Inayoshi, Xiangyu Jin, Gene C. K. Leung, Mingyu Li, Yichen Liu, Junjie Mao, Maria Anne Pudoka, Wei Leong Tee, Ben Wang, Feige Wang, Yunjing Wu, Jinyi Yang, Haowen Zhang, Yongda Zhu

The Discovery of Little Red Dots in the Local Universe: Signatures of Cool Gas Envelopes
JWST observations have revealed a population of high-redshift "little red dots" (LRDs) that challenge conventional AGN models. We report the discovery of three local LRDs at $z = 0.1-0.2$, initially selected from the SDSS database, with follow-up optical/near-IR spectroscopy and photometry. They exhibit properties fully consistent with those of high-redshift LRDs, including broad hydrogen and helium emission lines, compact morphologies, V-shaped UV-optical SED, declining near-IR continua, and n…

Experimental memory control in continuous variable optical quantum reservoir computing
Iris Paparelle, Johan Henaff, Jorge Garcia-Beni, Emilie Gillet, Gian Luca Giorgi, Miguel C. Soriano, Roberta Zambrini, Valentina Parigi
https://arxiv.org/abs/2506.07279

Experimental memory control in continuous variable optical quantum reservoir computing
Quantum reservoir computing (QRC) offers a promising framework for online quantum-enhanced machine learning tailored to temporal tasks, yet practical implementations with native memory capabilities remain limited. Here, we demonstrate an optical QRC platform based on deterministically generated multimode squeezed states, exploiting both spectral and temporal multiplexing in a fully continuous-variable (CV) setting, and enabling controlled fading memory. Data is encoded via programmable phase sh…