conformal algebra 1deparametrisation 1FLRW cosmology 1gauge symmetries 1minisuperspace 1physical symmetries 1
From the 1 of 3 linked papers with an AI index.
3 papers
gr-qc2026
Gauge vs (hidden) physical symmetries of FLRW cosmologies
Andrea Calcinari, Adrià Delhom, Federico Greco +2
The paper analyses how gauge symmetries and hidden physical symmetries differ in flat FLRW cosmologies with multiple massless scalar fields, showing that conformal Killing vectors…
gr-qc2026
Collective excitations in quantum gravity condensates
Andrea Calcinari, Adrià Delhom, Daniele Oriti
A central open problem in quantum gravity is to understand how continuum spacetime emerges from quantum-geometric degrees of freedom in a background-independent setting. A many-bod…
gr-qc2025
Relational dynamics and Page-Wootters formalism in group field theory
Andrea Calcinari, Steffen Gielen
Group field theory posits that spacetime is emergent and is hence defined without any background notion of space or time; dynamical questions are formulated in relational terms, in…