2 citations · 2 across the 6 of their papers we have counts for
6 papers
Lectures on Open Systems and Cosmology
Enrico Pajer
Open systems are ubiquitous in physics. Many realistic systems interact, at least weakly, with environmental degrees of freedom that may be too numerous, too complicated, inaccessi…
Counting Degrees of Freedom in Open Effective Theories
Enrica Lausdei, Enrico Pajer
Open effective field theories provide a systematic framework for describing physical systems interacting with an environment whose microscopic details are unknown, unobservable, or…
Phenomenology of an Open Effective Field Theory of Dark Energy
Santiago Agüí Salcedo, Thomas Colas, Lennard Dufner +1
All observational evidence for dark matter and dark energy is so far exclusively gravitational. Hence, the dark sector may be equivalently described by a theory of the spacetime me…
All-Loop Renormalization and the Phase of the de Sitter Wavefunction
Alexander Farren, Ciaran McCulloch, Enrico Pajer +1
Cosmological observables of the primordial universe are encoded in the late-time field-theoretic wavefunction. For shift-symmetric scalars in de Sitter, a good approximation for ma…
An Open System Approach to Gravity
Santiago Agüí Salcedo, Thomas Colas, Lennard Dufner +1
Several major open problems in cosmology, including the nature of inflation, dark matter, and dark energy, share a common structure: they involve spacetime-filling media with unkno…
The UV Sensitivity of Axion Monodromy Inflation
Enrico Pajer, Dong-Gang Wang, Bowei Zhang
We revisit axion monodromy inflation in the context of UV-inspired models and point out that its cosmological observables are sensitive to heavy fields with masses far above the Hu…