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Bianchi IX dynamics with a phantom field
Abstract
We consider Bianchi IX dynamics of a Universe filled with a massless phantom field. Such an exotic matter source enables regimes impossible in vacuum or with a standard scalar field. In particular, two Kasner indices of BKL oscillations can be simultaneously negative, and the absolute value of a negative index can be large. We describe the consequences of these features and explain the nature of volume oscillations recently discovered in such a system by numerical methods.
Versions
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BibTeX
@misc{awad2026bianchi,
title = {{Bianchi IX dynamics with a phantom field}},
author = {Adel Awad and Dmitry Chirkov and Alexey Golovnev and Alexey Toporensky},
howpublished = {arXiv},
year = {2026},
month = jun,
doi = {10.48550/arxiv.2606.22675},
eprint = {2606.22675},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2606.22675},
}
RIS
TY - UNPB
TI - Bianchi IX dynamics with a phantom field
AU - Adel Awad
AU - Dmitry Chirkov
AU - Alexey Golovnev
AU - Alexey Toporensky
PY - 2026
DA - 2026/06/21
PB - arXiv
DO - 10.48550/arxiv.2606.22675
UR - https://arxiv.org/abs/2606.22675
AB - We consider Bianchi IX dynamics of a Universe filled with a massless phantom field. Such an exotic matter source enables regimes impossible in vacuum or with a standard scalar field. In particular, two Kasner indices of BKL oscillations can be simultaneously negative, and the absolute value of a negative index can be large. We describe the consequences of these features and explain the nature of volume oscillations recently discovered in such a system by numerical methods.
ER -