Tootfinder

Online Competitive Information Gathering for Partially Observable Trajectory Games
Mel Krusniak, Hang Xu, Parker Palermo, Forrest Laine
https://arxiv.org/abs/2506.01927

Online Competitive Information Gathering for Partially Observable Trajectory Games
Game-theoretic agents must make plans that optimally gather information about their opponents. These problems are modeled by partially observable stochastic games (POSGs), but planning in fully continuous POSGs is intractable without heavy offline computation or assumptions on the order of belief maintained by each player. We formulate a finite history/horizon refinement of POSGs which admits competitive information gathering behavior in trajectory space, and through a series of approximations,…

Did you know the Palermo Protocol was adopted by the United Nations in 2000 and says “the recruitment, transportation, transfer, harboring, or receipt of people through force, fraud, or deception, with the aim of exploiting them” is human trafficking?
#ice #USpol

Characterization Of Diseases In Temporal Comorbidity Networks
Yuri Gardinazzi, Roger Gonzal\'ez March, Suprabhath Kalahasti, Andrea Monta\~no Ramirez, Matteo Neri, Cicely Nguyen, Giovanni Palermo, Erik Weis, Katharina Ledebur, Elma Dervi\'c
https://arxiv.org/abs/2506.22136

Characterization Of Diseases In Temporal Comorbidity Networks
Comorbidity networks, which capture disease-disease co-occurrence usually based on electronic health records, reveal structured patterns in how diseases cluster and progress across individuals. However, how these networks evolve across different age groups and how this evolution relates to properties like disease prevalence and mortality remains understudied. To address these issues, we used publicly available comorbidity networks extracted from a comprehensive dataset of 45 million Austrian ho…

Slow neutrons in Palermo: a forgotten conference by Enrico Fermi
Emanuele Goldoni, Ledo Stefanini
https://arxiv.org/abs/2507.16928 https://

Slow neutrons in Palermo: a forgotten conference by Enrico Fermi
On October 22, 1934, in a famous experiment, Enrico Fermi and his colleagues discovered that a significant increase in induced radioactivity can be obtained when neutrons are slowed down by means of hydrogen atoms. This discovery and its explanation earned him the 1938 Nobel Prize in Physics. One year later, on October 1935, Fermi held a public speech in Palermo, Italy, presenting his findings at the 24th congress of the Italian Society for the Progress of Sciences. The transcription of his spe…

On miniature ultra-high-field commercial stellarator reactors with breeding external to resistive coils
V. Queral, E. Rincon, A. de Castro, A. Moro\~no, I. Fernandez-Berceruelo, I. Palermo, D. Spong, S. Cabrera, J. Varela
https://arxiv.org/abs/2505.23485

On miniature ultra-high-field commercial stellarator reactors with breeding external to resistive coils
The working parameters and challenges of transposed (breeding external to resistive coils) ultra-high-field pulsed commercial stellarator reactors of small plasma volume are studied. They may allow production of commercial heat and electricity in a tiny and simple device, and contribute to the knowledge on burning plasmas. The concept is based on the previous works (V. Queral et al.) performed for the high-field experimental fusion reactor i-ASTER (J. Fus. Energy 37 2018) and the recent Distrib…

Freezeout at constant energy density and spin polarization in heavy-ion collisions
Andrea Palermo, Masoud Shokri
https://arxiv.org/abs/2507.18761 https://a…

Freezeout at constant energy density and spin polarization in heavy-ion collisions
Using the local equilibrium density operator, we develop a geometry-informed linear response theory that takes into account the parameterization of the freezeout hypersurface before the gradient expansion is carried out. Assuming local equilibrium on an iso-energy density hypersurface, we study the $Λ$ hyperon spin polarization, and compute corrections to the isothermal case due to finite density. We argue that corrections to isothermal freezeout should be small, and that even in heavy ion col…

Initial conditions and bulk viscosity effects on $\Lambda$ polarization in high-energy heavy ion collisions
Andrea Palermo
https://arxiv.org/abs/2507.19463 https://

Initial conditions and bulk viscosity effects on $Λ$ polarization in high-energy heavy ion collisions
The $Λ$ spin polarization is a crucial probe of the gradients of velocity and temperature in the quark-gluon plasma generated in heavy-ion collisions. However, it is still not systematically used to tune hydrodynamic models. In this work, we investigate the influence of different initial conditions and parametrization of the bulk viscosity on $Λ$ polarization, showing that they affect the local polarization significantly. These results highlight the impact that the use of local polarization c…

Polarization of the $\phi$ meson in the hadronic phase with nucleon scatterings and a viscous hydrodynamic background
Eduardo Grossi, Andrea Palermo, Ismail Zahed
https://arxiv.org/abs/2507.19228

Polarization of the $ϕ$ meson in the hadronic phase with nucleon scatterings and a viscous hydrodynamic background
We extend our previous work on the spin alignment of the $ϕ$ vector meson in the hadronic phase of the Quark Gluon Plasma, by including effects of nucleon scatterings. The emission rates are calculated in a realistic hydrodynamic background simulated with the code Fluid$u$m, for different beam energies. We find that all the effects taken into account cannot explain the out-of-plane spin alignment of the $ϕ$ meson observed experimentally.

Replaced article(s) found for physics.hist-ph. https://arxiv.org/list/physics.hist-ph/new
[1/1]:
- Slow neutrons in Palermo: a forgotten conference by Enrico Fermi
Emanuele Goldoni, Ledo Stefanini

Thermalization from quantum entanglement: jet simulations in the massive Schwinger model
Adrien Florio, David Frenklakh, Sebastian Grieninger, Dmitri E. Kharzeev, Andrea Palermo, Shuzhe Shi
https://arxiv.org/abs/2506.14983

Thermalization from quantum entanglement: jet simulations in the massive Schwinger model
We investigate the emergence of thermalization in a quantum field-theoretic model mimicking the production of jets in QCD -- the massive Schwinger model coupled to external sources. Specifically, we compute the expectation values of local operators as functions of time and compare them to their thermal counterparts, quantify the overlap between the evolving density matrix and the thermal one, and compare the dynamics of the energy-momentum tensor to predictions from relativistic hydrodynamics. …