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Equivalence between the phase-integral and worldline-instanton methods
Sang Pyo Kim, Don N. Page
The phase-integral and worldline-instanton methods are two widely used methods to calculate Schwinger pair-production densities in electric fields of fixed direction that depend on…
The Bekenstein Bound
Don N. Page
Bekenstein's conjectured entropy bound for a system of linear size and energy , namely , has counterexamples for many of the ways in which the "system," ,…
Possibilities for Probabilities
Don N. Page
In ordinary situations involving a small part of the universe, Born's rule seems to work well for calculating probabilities of observations in quantum theory. However, there are a…
Bayes Keeps Boltzmann Brains at Bay
Don N. Page
Sean Carroll has recently argued that theories predicting that observations are dominated by Boltzmann Brains should be rejected because they are cognitively unstable: "they cannot…
Anthropic Estimates for Many Parameters of Physics and Astronomy
Don N. Page
Anthropic arguments of Carter, Carr, and Rees give two approximate power-law relations between the elementary charge e, the mass of the proton m_p, and the mass of the electron m_e…
Ingoing Eddington-Finkelstein Metric of an Evaporating Black Hole
Shohreh Abdolrahimi, Don N. Page, Christos Tzounis
We present an approximate time-dependent metric in ingoing Eddington-Finkelstein coordinates for an evaporating nonrotating black hole as a first-order perturbation of the Schwarzs…