English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Neutrino gases are expected to form in high density astrophysicalenvironments, and accurately modeling their flavor evolution is critical tounderstanding such environments. In this work we study a simplified model ofsuch a dense neutrino gas in the regime for which neutrino-neutrino coherentforward scattering is the dominant mechanism contributing to the flavorevolution. We show evidence that the generic potential induced by this effectis non-integrable and that the statistics of its energy level spaces are ingood agreement with the Wigner surmise. We also find that individual neutrinosrapidly entangle with all of the others present which results in anequilibration of the flavor content of individual neutrinos. We show that theaverage neutrino flavor content can be predicted utilizing a thermodynamicpartition function. A random phase approximation to the evolution gives asimple picture of this equilibration. In the case of neutrinos andantineutrinos, processes like $\nu_e {\bar{\nu}}_e \leftrightarrows \nu_\mu{\bar{\nu}_\mu} $ yield a rapid equilibrium satisfying $n( \nu_e) n({\bar\nu}_e) = n( \nu_\mu) n({\bar \nu}_\mu) = n( \nu_\tau) n({\bar \nu}_\tau)$ inaddition to the standard lepton number conservation in regimes whereoff-diagonal vacuum oscillations are small compared to $\nu-\nu$ interactions.

Equilibration of quantum many-body fast neutrino flavor oscillations