from Hotel de Dream

Edmund White\u27s new novel Hotel de Dream (Ecco/HarperCollins) evokes the final days of Stephen Crane and Crane\u27s lost novel about a boy prostitute in New York City in the late 19th century

Scaling solutions as Early Dark Energy resolutions to the Hubble tension

A wide class of scalar field models including Quintessence and K-essence have the attractive property of tracker regimes, where the energy density stored in the field evolves so as to mimic that of the dominant background component. During this evolution, for a brief period of time, there is an increase in the energy density of the field as it spirals in towards its attractor solution. We show that when the peak of this energy density occurs around the epoch of equality, we can address a key requirement of early dark energy (EDE), postulated as a solution to the Hubble tension. In particular we demonstrate how this can occur in a wide class of Quintessence, axion and K-essence models, before showing that the Quintessence models suffer in that they generally lead to sound speeds incompatible with the requirements of EDE, whereas the K-essence and axion models can do a better job of fitting the data

Recent Decisions

Comments on recent decisions by James E. Murray, Edmund L. White, Peter H. Lousberg, Wilbur L. Pollard, John L. Rosshirt, and Patrick J. Foley