תקציר
We study the conditions for finding an island in an anisotropic universe - Bianchi type I universe filled with radiation. We verify that the existence of islands does not depend on their shape. We then find that islands may form at certain times, near the turnaround point - where the universe turns from contraction to expansion in one of the directions. This is in line with previous analyses regarding cosmological space-times where islands form if one has two energy scales in the problem, such as the typical temperature of the universe and, on top of that, cosmological constant, curvature, anisotropy, or some other mass scale.
| שפה מקורית | אנגלית |
|---|---|
| מספר המאמר | 046015 |
| כתב עת | Physical Review D |
| כרך | 111 |
| מספר גיליון | 4 |
| מזהי עצם דיגיטלי (DOIs) | |
| סטטוס פרסום | פורסם - 10 פבר׳ 2025 |
הערה ביבליוגרפית
Publisher Copyright:© 2025 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.