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Quantum droplets in one-dimensional mixtures of quasi Bose-Einstein condensates and Tonks-Girardeau gases
Wen-Bin He, Su Yi, Thomas Busch
https://arxiv.org/abs/2508.16115 https:…

Quantum droplets in one-dimensional mixtures of quasi Bose-Einstein condensates and Tonks-Girardeau gases
While binary atomic Bose-Einstein condensates are typically prone to collapse under strong interspecies attraction, it has been shown that higher-order fluctuation corrections, known as Lee-Huang-Yang corrections, can stabilize the mixture. In this work, we demonstrate an alternative stabilization mechanism based on kinetic energy. Specifically, we consider a one-dimensional mixture of a quasi-BEC and a Tonks-Girardeau gas, and show that the kinetic energy of the TG component can counteract the…

🇺🇦 #NowPlaying on #BBC6Music's #NewMusicFix
Ess Whiteley:
🎵 Interspecies Magicians
#EssWhiteley
https://metronrecords.bandcamp.com/track/interspecies-magicians

Interspecies rivalry is a common occurrence in #StarTrek. And a notorious example for this is the subject of today's #TrekTriviaTuesday question.
As always no googling and no spoiling the answer for others. Please boost after voting! :BoostOK:
Vote will run for 24h, then I will…

Theory of Emergent Trionic Order in One-Dimensional Bose-Fermi Mixtures
Yan-Guang Yue, Qi Song, Jie Lou, Yan Chen
https://arxiv.org/abs/2509.00523 https://…

Theory of Emergent Trionic Order in One-Dimensional Bose-Fermi Mixtures
We study a one-dimensional (1D) lattice mixture of hard-core bosons and spinless fermions with attractive interspecies interaction and correlated fermion pair hopping. Using Schrieffer-Wolff (SW) transformation and bosonization, we derive an effective low-energy theory that reveals a density-induced resonance mechanism. When the filling ratio satisfies $ρ_{c0}:ρ_{b0} = 2:1$, a non-oscillatory cosine term emerges in the bosonized theory. This term favors the formation of trions, i.e., bound st…

Structured Interactions Drive Abrupt Transitions in the Spatial Organization of Microbial Communities
Mattia Mattei, David Soriano Pa\~nos, Mahantesh Halappanavar, Alex Arenas
https://arxiv.org/abs/2509.01365

Structured Interactions Drive Abrupt Transitions in the Spatial Organization of Microbial Communities
Bacteria possess diverse mechanisms to regulate their motility in response to environmental and physiological signals, enabling them to navigate complex habitats and adapt their behavior. Among these mechanisms, interspecies recognition enables cells to modulate their movement based on the ecological identity of neighboring species. Here, we introduce a model in which we assume bacterial species recognizes each other and interact via local signals that either enhance or suppress the motility of…