3 papers
hep-th2025
Soft Oscillons
Fabio van Dissel, Oriol Pujolàs
We present a novel type of soliton dubbed soft oscillons. In contrast with conventional oscillons the soft counterparts come in a continuum of unboundedly large sizes. They are pec…
hep-th2024
Semiclassical Backreaction: A Qualitative Assessment
Fabio van Dissel, George Zahariade
The backreaction of quantum degrees of freedom on classical backgrounds is a poorly understood topic in theoretical physics. Most often it is treated within the semiclassical appro…
hep-th2023
Oscillon spectroscopy
Fabio van Dissel, Oriol Pujolas, Evangelos Sfakianakis
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…