Faster access than browser!
51 relations: Affine connection, Albert Einstein, Algebraic operation, Alternatives to general relativity, Élie Cartan, Belinfante–Rosenfeld stress–energy tensor, Big Bang, Big Bounce, Black hole, Brans–Dicke theory, Constraint (classical mechanics), Dennis W. Sciama, Determinant, Dirac equation, Einstein field equations, Einstein–Hilbert action, Electromagnetic tensor, Event horizon, Fermion, Gauge gravitation theory, Gauge theory gravity, General relativity, Gravitational constant, Gravitational singularity, Hamilton's principle, Inflation (cosmology), Lagrangian (field theory), Levi-Civita connection, Loop quantum gravity, Metric-affine gravitation theory, Observable universe, Partial differential equation, Physical cosmology, Point particle, Principle of least action, Quantum gravity, Ricci curvature, Riemann curvature tensor, Scalar curvature, Scale factor (cosmology), Speed of light, Spin (physics), Spin tensor, Superposition principle, Teleparallelism, Theoretical physics, Tom Kibble, Torsion tensor, Ultraviolet divergence, Wave, ..., Wormhole. Expand index (1 more) »
Affine connection
In the branch of mathematics called differential geometry, an affine connection is a geometric object on a smooth manifold which connects nearby tangent spaces, so it permits tangent vector fields to be differentiated as if they were functions on the manifold with values in a fixed vector space.
New!!: Einstein–Cartan theory and Affine connection · See more »
Albert Einstein
Albert Einstein (14 March 1879 – 18 April 1955) was a German-born theoretical physicist who developed the theory of relativity, one of the two pillars of modern physics (alongside quantum mechanics).
New!!: Einstein–Cartan theory and Albert Einstein · See more »
Algebraic operation
In mathematics, a basic algebraic operation is any one of the traditional operations of arithmetic, which are addition, subtraction, multiplication, division, raising to an integer power, and taking roots (fractional power).
New!!: Einstein–Cartan theory and Algebraic operation · See more »
Alternatives to general relativity
Alternatives to general relativity are physical theories that attempt to describe the phenomenon of gravitation in competition to Einstein's theory of general relativity.
New!!: Einstein–Cartan theory and Alternatives to general relativity · See more »
Élie Cartan
Élie Joseph Cartan, ForMemRS (9 April 1869 – 6 May 1951) was an influential French mathematician who did fundamental work in the theory of Lie groups and their geometric applications.
New!!: Einstein–Cartan theory and Élie Cartan · See more »
Belinfante–Rosenfeld stress–energy tensor
In mathematical physics, the Belinfante–Rosenfeld tensor is a modification of the energy–momentum tensor that is constructed from the canonical energy–momentum tensor and the spin current so as to be symmetric yet still conserved.
New!!: Einstein–Cartan theory and Belinfante–Rosenfeld stress–energy tensor · See more »
Big Bang
The Big Bang theory is the prevailing cosmological model for the universe from the earliest known periods through its subsequent large-scale evolution.
New!!: Einstein–Cartan theory and Big Bang · See more »
Big Bounce
The Big Bounce is a hypothetical cosmological model for the origin of the known universe.
New!!: Einstein–Cartan theory and Big Bounce · See more »
Black hole
A black hole is a region of spacetime exhibiting such strong gravitational effects that nothing—not even particles and electromagnetic radiation such as light—can escape from inside it.
New!!: Einstein–Cartan theory and Black hole · See more »
Brans–Dicke theory
In theoretical physics, the Brans–Dicke theory of gravitation (sometimes called the Jordan–Brans–Dicke theory) is a theoretical framework to explain gravitation.
New!!: Einstein–Cartan theory and Brans–Dicke theory · See more »
Constraint (classical mechanics)
In classical mechanics, a constraint on a system is a parameter that the system must obey.
New!!: Einstein–Cartan theory and Constraint (classical mechanics) · See more »
Dennis W. Sciama
Dennis William Siahou Sciama, (18 November 1926 – 18/19 December 1999) was a British physicist who, through his own work and that of his students, played a major role in developing British physics after the Second World War.
New!!: Einstein–Cartan theory and Dennis W. Sciama · See more »
Determinant
In linear algebra, the determinant is a value that can be computed from the elements of a square matrix.
New!!: Einstein–Cartan theory and Determinant · See more »
Dirac equation
In particle physics, the Dirac equation is a relativistic wave equation derived by British physicist Paul Dirac in 1928.
New!!: Einstein–Cartan theory and Dirac equation · See more »
Einstein field equations
The Einstein field equations (EFE; also known as Einstein's equations) comprise the set of 10 equations in Albert Einstein's general theory of relativity that describe the fundamental interaction of gravitation as a result of spacetime being curved by mass and energy.
New!!: Einstein–Cartan theory and Einstein field equations · See more »
Einstein–Hilbert action
The Einstein–Hilbert action (also referred to as Hilbert action) in general relativity is the action that yields the Einstein field equations through the principle of least action.
New!!: Einstein–Cartan theory and Einstein–Hilbert action · See more »
Electromagnetic tensor
In electromagnetism, the electromagnetic tensor or electromagnetic field tensor (sometimes called the field strength tensor, Faraday tensor or Maxwell bivector) is a mathematical object that describes the electromagnetic field in spacetime.
New!!: Einstein–Cartan theory and Electromagnetic tensor · See more »
Event horizon
In general relativity, an event horizon is a region in spacetime beyond which events cannot affect an outside observer.
New!!: Einstein–Cartan theory and Event horizon · See more »
Fermion
In particle physics, a fermion is a particle that follows Fermi–Dirac statistics.
New!!: Einstein–Cartan theory and Fermion · See more »
Gauge gravitation theory
In quantum field theory, gauge gravitation theory is the effort to extend Yang–Mills theory, which provides a universal description of the fundamental interactions, to describe gravity.
New!!: Einstein–Cartan theory and Gauge gravitation theory · See more »
Gauge theory gravity
Gauge theory gravity (GTG) is a theory of gravitation cast in the mathematical language of geometric algebra.
New!!: Einstein–Cartan theory and Gauge theory gravity · See more »
General relativity
General relativity (GR, also known as the general theory of relativity or GTR) is the geometric theory of gravitation published by Albert Einstein in 1915 and the current description of gravitation in modern physics.
New!!: Einstein–Cartan theory and General relativity · See more »
Gravitational constant
The gravitational constant (also known as the "universal gravitational constant", the "Newtonian constant of gravitation", or the "Cavendish gravitational constant"), denoted by the letter, is an empirical physical constant involved in the calculation of gravitational effects in Sir Isaac Newton's law of universal gravitation and in Albert Einstein's general theory of relativity.
New!!: Einstein–Cartan theory and Gravitational constant · See more »
Gravitational singularity
A gravitational singularity or spacetime singularity is a location in spacetime where the gravitational field of a celestial body becomes infinite in a way that does not depend on the coordinate system.
New!!: Einstein–Cartan theory and Gravitational singularity · See more »
Hamilton's principle
In physics, Hamilton's principle is William Rowan Hamilton's formulation of the principle of stationary action (see that article for historical formulations).
New!!: Einstein–Cartan theory and Hamilton's principle · See more »
Inflation (cosmology)
In physical cosmology, cosmic inflation, cosmological inflation, or just inflation, is a theory of exponential expansion of space in the early universe.
New!!: Einstein–Cartan theory and Inflation (cosmology) · See more »
Lagrangian (field theory)
Lagrangian field theory is a formalism in classical field theory.
New!!: Einstein–Cartan theory and Lagrangian (field theory) · See more »
Levi-Civita connection
In Riemannian geometry, the Levi-Civita connection is a specific connection on the tangent bundle of a manifold.
New!!: Einstein–Cartan theory and Levi-Civita connection · See more »
Loop quantum gravity
Loop quantum gravity (LQG) is a theory of quantum gravity, merging quantum mechanics and general relativity.
New!!: Einstein–Cartan theory and Loop quantum gravity · See more »
Metric-affine gravitation theory
In comparison with General Relativity, dynamic variables of metric-affine gravitation theory are both a pseudo-Riemannian metric and a general linear connection on a world manifold X. Metric-affine gravitation theory has been suggested as a natural generalization of Einstein–Cartan theory of gravity with torsion where a linear connection obeys the condition that a covariant derivative of a metric equals zero.
New!!: Einstein–Cartan theory and Metric-affine gravitation theory · See more »
Observable universe
The observable universe is a spherical region of the Universe comprising all matter that can be observed from Earth at the present time, because electromagnetic radiation from these objects has had time to reach Earth since the beginning of the cosmological expansion.
New!!: Einstein–Cartan theory and Observable universe · See more »
Partial differential equation
In mathematics, a partial differential equation (PDE) is a differential equation that contains unknown multivariable functions and their partial derivatives.
New!!: Einstein–Cartan theory and Partial differential equation · See more »
Physical cosmology
Physical cosmology is the study of the largest-scale structures and dynamics of the Universe and is concerned with fundamental questions about its origin, structure, evolution, and ultimate fate.
New!!: Einstein–Cartan theory and Physical cosmology · See more »
Point particle
A point particle (ideal particle or point-like particle, often spelled pointlike particle) is an idealization of particles heavily used in physics.
New!!: Einstein–Cartan theory and Point particle · See more »
Principle of least action
The principle of least action – or, more accurately, the principle of stationary action – is a variational principle that, when applied to the action of a mechanical system, can be used to obtain the equations of motion for that system.
New!!: Einstein–Cartan theory and Principle of least action · See more »
Quantum gravity
Quantum gravity (QG) is a field of theoretical physics that seeks to describe gravity according to the principles of quantum mechanics, and where quantum effects cannot be ignored, such as near compact astrophysical objects where the effects of gravity are strong.
New!!: Einstein–Cartan theory and Quantum gravity · See more »
Ricci curvature
In differential geometry, the Ricci curvature tensor, named after Gregorio Ricci-Curbastro, represents the amount by which the volume of a small wedge of a geodesic ball in a curved Riemannian manifold deviates from that of the standard ball in Euclidean space.
New!!: Einstein–Cartan theory and Ricci curvature · See more »
Riemann curvature tensor
In the mathematical field of differential geometry, the Riemann curvature tensor or Riemann–Christoffel tensor (after Bernhard Riemann and Elwin Bruno Christoffel) is the most common method used to express the curvature of Riemannian manifolds.
New!!: Einstein–Cartan theory and Riemann curvature tensor · See more »
Scalar curvature
In Riemannian geometry, the scalar curvature (or the Ricci scalar) is the simplest curvature invariant of a Riemannian manifold.
New!!: Einstein–Cartan theory and Scalar curvature · See more »
Scale factor (cosmology)
The relative expansion of the universe is parametrized by a dimensionless scale factor a. Also known as the cosmic scale factor or sometimes the Robertson–Walker scale factor, this is a key parameter of the Friedmann equations.
New!!: Einstein–Cartan theory and Scale factor (cosmology) · See more »
Speed of light
The speed of light in vacuum, commonly denoted, is a universal physical constant important in many areas of physics.
New!!: Einstein–Cartan theory and Speed of light · See more »
Spin (physics)
In quantum mechanics and particle physics, spin is an intrinsic form of angular momentum carried by elementary particles, composite particles (hadrons), and atomic nuclei.
New!!: Einstein–Cartan theory and Spin (physics) · See more »
Spin tensor
In mathematics, mathematical physics, and theoretical physics, the spin tensor is a quantity used to describe the rotational motion of particles in spacetime.
New!!: Einstein–Cartan theory and Spin tensor · See more »
Superposition principle
In physics and systems theory, the superposition principle, also known as superposition property, states that, for all linear systems, the net response caused by two or more stimuli is the sum of the responses that would have been caused by each stimulus individually.
New!!: Einstein–Cartan theory and Superposition principle · See more »
Teleparallelism
Teleparallelism (also called teleparallel gravity), was an attempt by Albert Einstein to base a unified theory of electromagnetism and gravity on the mathematical structure of distant parallelism, also referred to as absolute or teleparallelism.
New!!: Einstein–Cartan theory and Teleparallelism · See more »
Theoretical physics
Theoretical physics is a branch of physics that employs mathematical models and abstractions of physical objects and systems to rationalize, explain and predict natural phenomena.
New!!: Einstein–Cartan theory and Theoretical physics · See more »
Tom Kibble
Sir Thomas Walter Bannerman Kibble, (23 December 1932 – 2 June 2016), was a British theoretical physicist, senior research investigator at the Blackett Laboratory and Emeritus Professor of Theoretical Physics at Imperial College London.
New!!: Einstein–Cartan theory and Tom Kibble · See more »
Torsion tensor
In differential geometry, the notion of torsion is a manner of characterizing a twist or screw of a moving frame around a curve.
New!!: Einstein–Cartan theory and Torsion tensor · See more »
Ultraviolet divergence
In physics, an ultraviolet divergence or UV divergence is a situation in which an integral, for example a Feynman diagram, diverges because of contributions of objects with unbounded energy, or, equivalently, because of physical phenomena at infinitesimal distances.
New!!: Einstein–Cartan theory and Ultraviolet divergence · See more »
Wave
In physics, a wave is a disturbance that transfers energy through matter or space, with little or no associated mass transport.
New!!: Einstein–Cartan theory and Wave · See more »
Wormhole
A wormhole is a concept that represents a solution of the Einstein field equations: a non-trivial resolution of the Ehrenfest paradox structure linking separate points in spacetime.
New!!: Einstein–Cartan theory and Wormhole · See more »
Redirects here:
Einstein-Cartan Theory, Einstein-Cartan gravity, Einstein-Cartan theory, Einstein-Cartan-Sciama-Kibble theory, Einstein–Cartan–Sciama–Kibble theory, Riemann-Cartan geometry, Riemann–Cartan geometry, Riemann–Cartan space.
References
[1] https://en.wikipedia.org/wiki/Einstein–Cartan_theory
