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

We explore the phase transitions at the onset of time-crystalline order in$O(N)$ models driven out-of-equilibrium. The spontaneous breaking of timetranslation symmetry and its Goldstone mode are captured by an effectivedescription with $O(N)\times SO(2)$ symmetry. Using the renormalization groupand the $\epsilon=4-d$ expansion in a leading two-loop analysis, we identify anew non-equilibrium universality class. Strikingly, it controls thelong-distance physics no matter how small the microscopic breaking ofequilibrium conditions is. The $O(N=2)\times SO(2)$ symmetry group is realizedfor magnon condensation in pumped yttirum iron garnet (YIG) films and inexciton-polariton systems with a polarization degree of freedom.

Non-equilibrium criticality at the onset of time-crystalline order in $O(N)$ models