3 papers
quant-ph2025
Interaction of a non-relativistic particle with a spin with a pseudoscalar field
A. Shurgaia
A non-relativistic model of a moving fermion in a pseudoscalar field is investigated using N. N. Bogolyubov's method. The invariance properties are rigorously described. The energi…
hep-th2024
Two-dimensional model of interaction of a non-relativistic particle with scalar mesons in the strong coupling limit
A. Shurgaia
Bogolyubov transformations are introduced into the nonrelativistic model of particle interaction with scalar mesons. Within the framework of the generalized Hamiltonian formalism d…
hep-th2010
Quantum Properties of Periodic Instantons on a Circle
Avtandil Shurgaia
Quantum properties of a (1+1)-dimensional scalar theory on a cylinder with a compact spatial part, namely, , are considered. In particular, quantum theory around the…