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Relativistic persistent currents in ideal Aharonov-Bohm rings and cylinders
Ion I. Cotaescu
The exact solutions of the complete (1+3)-dimensional Dirac equation of fermions moving in ideal Aharonov-Bohm (AB) rings and cylinders are used for deriving the exact expressions…
Maxwell-Juttner distribution for rigidly-rotating flows in spherically symmetric spacetimes using the tetrad formalism
Victor E. Ambrus, Ion I. Cotaescu
We consider rigidly rotating states in thermal equilibrium on static spherically symmetric spacetimes. Using the Maxwell-Juttner equilibrium distribution function, onstructed as a…
Relative motion and rest frames on de Sitter spacetimes
Ion I. Cotaescu
The Nachtmann boosting method is completed with gauge transformations in order to be applied to the study of the relative geodesic motion on the de Sitter spacetimes, finding how t…
Partial wave analysis of the Dirac fermions scattered from Reissner - Nordstr\" om charged black holes
Ion I. Cotaescu, Cosmin Crucean, Ciprian A. Sporea
The asymptotic form of Dirac spinors in the field of the Reissner-Nordstrom black hole are derived for the scattering states (with ) obtaining the phase shifts of the parti…
Canonical quantization of the covariant fields on de Sitter spacetimes
Ion I. Cotaescu
The properties of the covariant quantum fields on de Sitter spacetimes are investigated focusing on the isometry generators and Casimir operators in order to establish the equivale…
Elements of Linear Algebra. Lecture Notes
Ion I. Cotaescu
These pedagogical lecture notes address to the students in theoretical physics for helping them to understand the mechanisms of the linear operators defined on finite-dimensional v…