82 citations · 655 across the 39 of their papers we have counts for
7 papers · 1 filter
Oscillons in gapless theories
P. Dorey, T. Romanczukiewicz, Y. Shnir +1
We show that large scale oscillons, i.e., quasi-periodic, long living particle like solutions, may exist in massless theories, too. Their existence is explained using an effective…
Sphaleron without shape mode and its oscillon
K. Oles, J. Queiruga, T. Romanczukiewicz +1
We find that an oscillon can possess a characteristic double oscillation structure even though it results in a decay of a sphaleron which does not have any positive energy vibratio…
Semi-BPS sphaleron and its dynamics
A. Alonso-Izquierdo, S. Navarro-Obregón, K. Oles +3
We construct a simple field theory in which a sphaleron, i.e., a saddle-point particle-like solution, forms a semi-BPS state with a background defect that is an impurity. This mean…
Negative radiation pressure in Bose-Einstein condensates
Dominik Ciurla, Péter Forgács, Árpád Lukács +1
In two-component non-linear Schrödinger equations, the force exerted by incident monochromatic plane waves on an embedded dark soliton and on dark-bright-type solitons is investiga…
Quantum Oscillons May be Long-Lived
Jarah Evslin, Tomasz Romańczukiewicz, Andrzej Wereszczyński
Hertzberg has constructed a quantum oscillon that decays into pairs of relativistic mesons with a power much greater than the radiation from classical oscillon decay. This result i…
Relativistic Moduli Space and critical velocity in kink collisions
C. Adam, D. Ciurla, K. Oles +2
We analyze the perturbative Relativistic Moduli Space approach, where the amplitudes of the Derrick modes are promoted to collective coordinates. In particular, we analyse the poss…