71 citations · 234 across the 17 of their papers we have counts for
17 papers
An Effective Field Theory for Large Oscillons
D. G. Levkov, V. E. Maslov, E. Ya. Nugaev +1
We consider oscillons - localized, quasiperiodic, and extremely long-living classical solutions in models with real scalar fields. We develop their effective description in the lim…
Unveiling complex vector dark matter by magnetic field
Emin Nugaev, Andrey Shkerin
We discuss the possibility that dark matter is made of a new complex massive vector field with a global -symmetry. The field interacts with the Standard Model via coupling to…
Chaotic solitons in driven sine-Gordon model
D. G. Levkov, V. E. Maslov, E. Ya. Nugaev
Profiles of static solitons in one-dimensional scalar field theory satisfy the same equations as trajectories of a fictitious particle in multidimensional mechanics. We argue that…
Review of non-topological solitons in theories with -symmetry
Emin Nugaev, Andrey Shkerin
We provide a review of non-topological solitonic solutions arising in theories with a complex scalar field and global or gauge -symmetry. It covers Q-balls, homogeneous charg…
Vibrational modes of Q-balls
A. Kovtun, E. Nugaev, A. Shkerin
We study linear perturbations of classically stable Q-balls in theories admitting analytic solutions. Although the corresponding boundary value problem is non-Hermitian, the analys…
The fate of small classically stable Q-balls
Dmitry Levkov, Emin Nugaev, Andrei Popescu
The smallest classically stable Q-balls are, in fact, generically metastable: in quantum theory they decay into free particles via collective tunneling. We derive general semiclass…