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Oscillon spectroscopy
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DOI：10.1007/JHEP07(2023)194.png)
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摘要
En 中文
The sine-Gordon model in 3+1 dimensions is known to admit two oscillons of different energy and frequency but comparable lifetime. We show that the oscillon spectrum includes more spherically symmetric states. We identify new high-amplitude oscillons by allowing the field profile to have a number of nodes. For each number of nodes, we find 2 states with a comparable lifetime to the nodeless ones. Oscillons with nodes are, however, unstable to non-spherical perturbations and so their lifetime is significantly reduced. Interestingly, these states are seen to fragment into a collection of nodeless oscillons. The heavy nodeless oscillon is quite remarkable: despite its energy, it is stable against fragmentation. Moreover, it has considerably small oscillation frequency, meaning that it can be interpreted as a rather relativistic bound state.
Keyword:
Solitons Monopoles and Instantons
Axions and ALPs
Nonperturbative Effects
期刊
IF:
5.5
论文数:
4.0W
被引数:
13.7W
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