127 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Russian Academy of SciencesRU107 papers
- North-Eastern Federal UniversityRU21 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di NapoliIT14 papers
- University of BremenDE14 papers
- National Research Nuclear University MEPhIRU13 papers
- Lomonosov Moscow State UniversityRU11 papers
- P.N. Lebedev Physical Institute of the Russian Academy of SciencesRU9 papers
- Moscow Institute of Physics and TechnologyRU8 papers
- University of AlbertaCA6 papers
- University of CologneDE6 papers
- University of MissouriUS6 papers
- Istituto Nazionale di Fisica NucleareIT5 papers
60 papers · 1 filter
Violating Lorentz invariance minimally by the emergence of nonmetricity? A Perspective
Yuri N. Obukhov, Friedrich W. Hehl
Lorentz invariance belongs to the fundamental symmetries of nature. It is basic for the successful Standard Model of Particle Physics. Nevertheless, within the last decades, Lorent…
Spacetime geometry from Dirac spinor theory
Yuri N. Obukhov, G. E. Volovik
The quintet of Dirac matrices suggests that the fundamental dimension of the internal (spin) space is , instead of the conventional dimension . Then extending…
Hyperfluid model revisited
Yuri N. Obukhov, Friedrich W. Hehl
A new variational theory of a hyperfluid is constructed which is free of the supplementary condition issue and provides a consistent model of the classical matter source in the met…
Spin-Gravity Coupling in a Rotating Universe
Bahram Mashhoon, Masoud Molaei, Yuri N. Obukhov
The coupling of intrinsic spin with the nonlinear gravitomagnetic fields of Goedel-type spacetimes is studied. We work with Goedel-type universes in order to show that the main fea…
Search for manifestations of spin-torsion coupling
Mariya Iv. Trukhanova, Pavel Andreev, Yuri N. Obukhov
We investigate the axial vector torsion-spin coupling effects in the framework of the Poincaré gauge theory of gravity with the general Yang-Mills type Lagrangian. The dynamical eq…
On parity-odd sector in metric-affine theories
Jose Beltrán Jiménez, Alejandro Jiménez-Cano, Yuri N. Obukhov
We undertake the construction of quadratic parity-violating terms involving the curvature in the four-dimensional metric-affine gravity. We demonstrate that there are only 12 linea…
Conservation laws in gauge gravity theory
Yuri N. Obukhov
We analyse the conservation laws in the gauge gravity theory which are derived for the general class of gravitational models with the action invariant under the local Poincare and…
Gravitomagnetic Helicity
Donato Bini, Bahram Mashhoon, Yuri N. Obukhov
Mass currents in astrophysics generate gravitomagnetic fields of enormous complexity. Gravitomagnetic helicity, in direct analogy with magnetic helicity, is a measure of entwining…
Demystifying autoparallels in alternative gravity
Yuri N. Obukhov, Dirk Puetzfeld
Autoparallel curves along with geodesic curves can arise as trajectories of physical test bodies. We explicitly derive autoparallels as effective post-Riemannian geometric construc…
Parity violation in Poincaré gauge gravity
Yuri N. Obukhov
We analyse the parity violation issue in the Poincaré gauge theory of gravity for the two classes of models which are built as natural extensions of the Einstein-Cartan theory. The…
Gravitational waves in metric-affine gravity theory
Alejandro Jiménez-Cano, Yuri N. Obukhov
We derive the exact gravitational wave solutions in a general class of quadratic metric-affine gauge gravity models. The Lagrangian includes all possible linear and quadratic invar…
Generalized Birkhoff theorem in the Poincaré gauge gravity theory
Yuri N. Obukhov
The analysis of the validity of Birkhoff's theorem about the uniqueness of the spherically symmetric solution of the gravitational field equations is extended to the framework of t…
General relativity as a special case of Poincaré gauge gravity
Yuri N. Obukhov, Friedrich W. Hehl
We demonstrate that Einstein's general relativity theory arises as a special case in the framework of the Poincaré gauge theory of gravity under the assumption of a suitable nonmin…
Dynamics of classical and quantum spin in external fields: A general formalism
Yuri N. Obukhov
We study the dynamics of classical and quantum particles with spin and dipole moments in external fields within the framework of the general approach by making use of the projectio…
Conservation of energy-momentum of matter as the basis for the gauge theory of gravitation
Friedrich W. Hehl, Yuri N. Obukhov
According to Yang \& Mills (1954), a {\it conserved} current and a related rigid (`global') symmetry lie at the foundations of gauge theory. When the rigid symmetry is extended to…
Gauge Structure of Teleparallel Gravity
J. G. Pereira, Y. N. Obukhov
During the conference "Teleparallel Universes in Salamanca", we became aware of a recent paper [M. Fontanini, E. Huguet, and M. Le Delliou, Phys. Rev. D 99 (2019) 064006] in which…
Exact Solutions in Poincaré Gauge Gravity Theory
Yuri N. Obukhov
In the framework of the gauge theory based on the Poincaré symmetry group, the gravitational field is described in terms of the coframe and the local Lorentz connection. Considered…
Operational significance of the deviation equation in relativistic geodesy
Dirk Puetzfeld, Yuri N. Obukhov
Deviation equation: Second order differential equation for the 4-vector which measures the distance between reference points on neighboring world lines in spacetime manifolds. Rela…
Measuring the gravitational field in General Relativity: From deviation equations and the gravitational compass to relativistic clock gradiometry
Yuri N. Obukhov, Dirk Puetzfeld
How does one measure the gravitational field? We give explicit answers to this fundamental question and show how all components of the curvature tensor, which represents the gravit…
Premetric teleparallel theory of gravity and its local and linear constitutive law
Yakov Itin, Yuri N. Obukhov, Jens Boos +1
We continue to investigate the premetric teleparallel theory of gravity (TG) with the coframe (tetrad) as gravitational potential. We start from the field equations and a local and…
Poincaré gauge gravity: An overview
Yuri N. Obukhov
We review the basics and the current status of the Poincaré gauge theory of gravity. The general dynamical scheme of Poincaré gauge gravity (PG) is formulated, and its physical con…
Generalized plane waves in Poincaré gauge theory of gravity
Milutin Blagojević, Branislav Cvetković, Yuri N. Obukhov
A family of exact vacuum solutions, representing generalized plane waves propagating on the (anti-)de Sitter background, is constructed in the framework of Poincaré gauge theory. T…
Gravitational waves in Poincaré gauge gravity theory
Yuri N. Obukhov
We derive the exact gravitational wave solutions in a general class of quadratic Poincaré gauge gravity models. The Lagrangian includes all possible linear and quadratic invariants…
Manifestations of the rotation and gravity of the Earth in high-energy physics experiments
Yuri N. Obukhov, Alexander J. Silenko, Oleg V. Teryaev
The inertial (due to rotation) and gravitational fields of the Earth affect the motion of an elementary particle and its spin dynamics. This influence is not negligible and should…