4 papers
Thermal Positivity
Clifford Cheung, Rachel A. Rosen
We argue that Lorentz invariance and unitarity impose sharp constraints on thermodynamic quantities. By relating thermal vacuum diagrams to forward scattering amplitudes, we derive…
On Entropy Bounds for Irrelevant Operators
Lucas Fernández-Sarmiento, Riccardo Penco, Rachel A Rosen
Consistency constraints for low-energy theories, especially those lacking Lorentz invariance, have recently garnered attention. Building on results from black hole thermodynamics,…
Shift Symmetries in (Anti) de Sitter Space
James Bonifacio, Kurt Hinterbichler, Austin Joyce +1
We construct a class of extended shift symmetries for fields of all integer spins in de Sitter (dS) and anti-de Sitter (AdS) space. These generalize the shift symmetry, galileon sy…
Applications of de Sitter Causality Conditions
Daniel McLoughlin, Rachel A Rosen
We find explicit de Sitter shockwave solutions in arbitrary spacetime dimensions. We use these to determine the dimensional-dependent "stretching" of the de Sitter Penrose diagram…