According to inflation theory, the inflaton is a scalar field that is responsible for cosmic inflation in the very early universe. A quantized particle for this field is expected, similar to other qua ...
In theoretical general relativity, a geon is an electromagnetic or gravitational wave which is held together in a confined region by the gravitational attraction of its own field energy. They were fir ...
In physics, a dyon is a hypothetical particle in 4-dimensional theories with both electric and magnetic charges. A dyon with a zero electric charge is usually referred to as a magnetic monopole. Many ...
Isospin was introduced by Werner Heisenberg in 1932 to explain symmetries of the then newly discovered neutron:The mass of the neutron and the proton are almost identical: they are nearly degenerate, ...
In such quantum theories, solutions to the equations of motion may be thought of as critical points of the action. The critical points of the action may be local maxima of the action, local minima, or ...
The goldstino is the Nambu-Goldstone fermion emerging in the spontaneous breaking of supersymmetry. It is the close fermionic analog of the Nambu?Goldstone boson controlling the spontaneous breakdown ...
See also: Helicity (particle physics)The helicity of a particle is right-handed if the direction of its spin is the same as the direction of its motion. It is left-handed if the directions of spin and ...
Goldstone's theorem examines a generic continuous symmetry which is spontaneously broken; i.e., its currents are conserved, but the ground state is not invariant under the action of the corresponding ...
Time travel in a type 1 universe does not allow paradoxes such as the grandfather paradox to occur, where one deduces both a conclusion and its opposite (in the case of the grandfather paradox, one ca ...
There is no widespread agreement as to which written work should be recognized as the earliest example of a time travel story, since a number of early works feature elements ambiguously suggestive of ...
Mallett was born in Roaring Spring, Pennsylvania, on March 3, 1945 and grew up in The Bronx in New York City, New York. When he was 10 years old, his father died at age 33 of a heart attack. About one ...
Tipler was born in Andalusia, Alabama, to Frank Jennings Tipler Jr., a lawyer, and Anne Tipler, a homemaker. From 1965 through 1969, Tipler attended the Massachusetts Institute of Technology, where he ...
In physics, a world line of an object (approximated as a point in space, e.g., a particle or observer) is the sequence of spacetime events corresponding to the history of the object. A world line is a ...
In a Euclidean space, the separation between two points is measured by the distance between the two points. The distance is purely spatial, and is always positive. In spacetime, the separation between ...
In particle theory, the skyrmion (/?sk?rmi.?n/) is a hypothetical particle related originally to baryons. It was described by Tony Skyrme and consists of a quantum superposition of baryons and reso ...
