LRLukáš Rafaj
Lukáš Rafaj
*This is an algorithmically generated author record based on publicly available information.
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Lukáš Rafaj has a total of 2 co-authors. Here are the top co-authors by number of shared publications:
- Filip Blaschke
Silesian University in Opava
2 shared publications - Ondřej Nicolas Karpíšek
Silesian University in Opava Institute of Physics Bezručovo nám. 1150/13, 746 01 Opava
2 shared publications
Latest Publications
- Open Access
- 15 October 2024
- Published by Oxford University Press (OUP) in Progress of Theoretical and Experimental Physics
- Vol. 2024 (11)
Scattering of Kinks in Coreless Potentials
We explore the relevance of the central hill for a symmetric double-well potential and its impact on the scattering of kinks in a scalar field theory in (1+1) dimensions. This region controls the inner core structure of the kink. We study how the disappearance of analyticity in this region of the potential affects the resonant features in $K\bar{K}$ scattering.- 15 October 2024
- Published by Oxford University Press (OUP) in Progress of Theoretical and Experimental Physics
- Vol. 2024 (11)
Open AccessScattering of Kinks in Coreless Potentials
We explore the relevance of the central hill for a symmetric double-well potential and its impact on the scattering of kinks in a scalar field theory in (1+1) dimensions. This region controls the inner core structure of the kink. We study how the disappearance of analyticity in this region of the potential affects the resonant features in $K\bar{K}$ scattering. - 4 October 2023
- Published by American Physical Society (APS) in Physical Review E
- Vol. 108 (4) , 044203
Mechanization of a scalar field theory in dimensions: Bogomol'nyi-Prasad-Sommerfeld mechanical kinks and their scatteringWe present an updated version of a general-purpose collective coordinate model that aims to fully map out the dynamics of a single scalar field in dimensions. This is achieved by a procedure that we call a mechanization, in which we reduce the infinite number of degrees of freedom down to a finite and controllable number by chopping the field into flat segments connected via joints. In this paper we introduce two new ingredients to our procedure. The first is a manifestly Bogomol'nyi-Prasad-Sommerfeld (BPS) mechanization in which BPS mechanical kinks saturate the same bound on energy as their field-theoretic progenitors. The second is allowing the joints to switch, leading to an extended concept of the effective Lagrangian, through which we describe direct collisions of mechanical kinks and antikinks.- 4 October 2023
- Published by American Physical Society (APS) in Physical Review E
- Vol. 108 (4) , 044203
Mechanization of a scalar field theory in dimensions: Bogomol'nyi-Prasad-Sommerfeld mechanical kinks and their scatteringWe present an updated version of a general-purpose collective coordinate model that aims to fully map out the dynamics of a single scalar field in dimensions. This is achieved by a procedure that we call a mechanization, in which we reduce the infinite number of degrees of freedom down to a finite and controllable number by chopping the field into flat segments connected via joints. In this paper we introduce two new ingredients to our procedure. The first is a manifestly Bogomol'nyi-Prasad-Sommerfeld (BPS) mechanization in which BPS mechanical kinks saturate the same bound on energy as their field-theoretic progenitors. The second is allowing the joints to switch, leading to an extended concept of the effective Lagrangian, through which we describe direct collisions of mechanical kinks and antikinks.