A meron or half-instanton is a
Euclidean space-time solution of the
Yang–Mills field equations. It is a singular non-self-dual solution of topological charge 1/2. The
instanton
An instanton (or pseudoparticle) is a notion appearing in theoretical and mathematical physics. An instanton is a classical solution to equations of motion with a finite, non-zero action, either in quantum mechanics or in quantum field theory. M ...
is believed to be composed of two merons.
A meron can be viewed as a tunneling event between two
Gribov vacua.
In that picture, the meron is an event which starts from vacuum, then a
Wu–Yang monopole emerges, which then disappears again to leave the vacuum in another Gribov copy.
See also
*
BPST instanton
In theoretical physics, the BPST instanton is the instanton with winding number 1 found by Alexander Belavin, Alexander Polyakov, Albert Schwarz and Yu. S. Tyupkin. It is a classical solution to the equations of motion of SU(2) Yang–Mills th ...
*
Dyon
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 grand unified theories predict the existence of ...
*
Instanton
An instanton (or pseudoparticle) is a notion appearing in theoretical and mathematical physics. An instanton is a classical solution to equations of motion with a finite, non-zero action, either in quantum mechanics or in quantum field theory. M ...
*
Monopole
References
* ''Gauge Fields, Classification and Equations of Motion'',
Moshe Carmeli, Kh. Huleilil and
Elhanan Leibowitz Elhanan may refer to:
* The biblical Elhanan, son of Dodo The Biblical Elhanan ( ) was the son of Dodo (2 Samuel 23:24, 1 Chronicles 11:26). He was a member of King David’s elite fighters known as The Thirty.
Interpretation
Moshe Garsiel be ...
,
World Scientific Publishing
World Scientific Publishing is an academic publisher of scientific, technical, and medical books and journals headquartered in Singapore. The company was founded in 1981. It publishes about 600 books annually, along with 135 journals in various f ...
Gauge theories
Quantum chromodynamics
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