| Автор | Don N. Page |
| Дата выпуска | 2011-03-01 |
| dc.description | The measure problem of cosmology is how to assign normalized probabilities to observations in a universe so large that it may have many observations occurring at many different spacetime locations. I have previously shown how the Boltzmann brain problem (that observations arising from thermal or quantum fluctuations may dominate over ordinary observations if the universe expands sufficiently and/or lasts long enough) may be ameliorated by volume averaging, but that still leaves problems if the universe lasts too long. Here a solution is proposed for that residual problem by a simple weighting factor 1/(1+t<sup>2</sup>) to make the time integral convergent. The resulting Agnesi measure appears to avoid problems other measures may have with vacua of zero or negative cosmological constant. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Agnesi weighting for the measure problem of cosmology |
| Тип | paper |
| DOI | 10.1088/1475-7516/2011/03/031 |
| Electronic ISSN | 1475-7516 |
| Журнал | Journal of Cosmology and Astroparticle Physics |
| Том | 2011 |
| Первая страница | 31 |
| Последняя страница | 031 |
| Аффилиация | Don N. Page; Theoretical Physics Institute, Department of Physics, University of Alberta, Room 238 CEB, 11322 — 89 Avenue, Edmonton, Alberta, T6G 2G7, Canada |
| Выпуск | 03 |
