99 citations · 350 across the 12 of their papers we have counts for
12 papers
A Non-Trivial Zero Length Limit of the Nambu-Goto String
Matej Pavšič
We show that a Nambu-Goto string has a nontrivial zero length limit which corresponds to a massless particle with extrinsic curvature. The system has the set of six first class con…
Pais-Uhlenbeck Oscillator with a Benign Friction Force
Matej Pavšič
It is shown that the Pais-Uhlenbeck oscillator with damping, considered by Nesterenko, is a special case of a more general oscillator that has not only a first order, but also a th…
Stable Self-Interacting Pais-Uhlenbeck Oscillator
Matej Pavšič
It is shown that the interacting Pais-Uhlenbeck oscillator necessarily leads to a description with a Hamiltonian that contains positive and negative energies associated with two os…
Radiation Reaction and the Electromagnetic Energy-Momentum of Moving Relativistic Charged Membranes
A. O. Barut, M. Pavšič
The charged membrane of Dirac provides a stable electron model with finite self energy. Its total mass has been previously calculated from the Hamiltonian of the membrane. To c…
Quantum Field Theories in Spaces with Neutral Signatures
Matej Pavšič
We point out that quantum field theories based on the concept of Clifford space and Clifford algebra valued-fields involve both positive and negative energies. This is a consequenc…
Wheeler-DeWitt Equation in Five Dimensions and Modified QED
Matej Pavšič
We consider the ADM splitting of the Einstein-Hilbert action in five dimensions in the presence of matter that can be either a "point particle", or a set of scalar fields. The Hami…
On the Stueckelberg Like Generalization of General Relativity
Matej Pavšič
We first consider the Klein-Gordon equation in the 6-dimensional space with signature and show how it reduces to the Stueckelberg equation in the 4-dimensio…
Higher Derivative Gravity and Torsion from the Geometry of C-spaces
C. Castro, M. Pavsic
We start from a new theory (discussed earlier) in which the arena for physics is not spacetime, but its straightforward extension-the so called Clifford space (-space), a manifo…
External Inversion, Internal Inversion, and Reflection Invariance
Matej Pavsic
Having in mind that physical systems have different levels of structure we develop the concept of external, internal and total improper Lorentz transformation (space inversion and…
Electron structure, Zitterbewegung, and the new non-linear Dirac-like equation
M. Pavsic, Erasmo Recami, W. A. Rodrigues
The recent literature shows a renewed interest, with various independent approaches, in the classical theories for spin. Considering the possible interest of those results, at leas…
The Dirac-Nambu-Goto p-Branes as Particular Solutions to a Generalized, Unconstrained Theory
Matej Pavsic
The theory of the usual, constrained p-branes is embedded into a larger theory in which there is no constraints. In the latter theory the Fock-Schwinger proper time formalism is ex…
The Classical and Quantum Theory of Relativistic p-Branes without Constraints
Matej Pavsic
It is shown that a relativistic (i.e. a Poincar{\' e} invariant) theory of extended objects (called p-branes) is not necessarily invariant under reparametrizations of corresponding…