Wilson line
In gauge theory, a Wilson loop (named after Kenneth G. Wilson) is a gauge-invariant observable obtained from the holonomy of the gauge connection around a given loop. In the classical theory, the collection of all Wilson loops contains sufficient information to reconstruct the gauge connection, up to gauge transformation.
In quantum field theory, the definition of Wilson loop observables as bona fide operators on Fock space (actually, Haag's theorem states that Fock space does not exist for interacting QFTs) is a mathematically delicate problem and requires regularization, usually by equipping each loop with a framing. The action of Wilson loop operators has the interpretation of creating an elementary excitation of the quantum field which is localized on the loop. In this way, Faraday's "flux tubes" become elementary excitations of the quantum electromagnetic field.
Wilson loops were introduced in the 1970s in an attempt at a nonperturbative formulation of quantum chromodynamics (QCD), or at least as a convenient collection of variables for dealing with the strongly-interacting regime of QCD. The problem of confinement, which Wilson loops were designed to solve, remains unsolved to this day.
The fact that strongly-coupled quantum gauge field theories have elementary nonperturbative excitations which are loops motivated Alexander Polyakov to formulate the first string theories, which described the propagation of an elementary quantum loop in spacetime.
Wilson loops played an important role in the formulation of loop quantum gravity, but there they are superseded by spin networks, a certain generalization of Wilson loops.
In particle physics and string theory, Wilson loops are often called Wilson lines, especially Wilson loops around non-contractible loops of a compact manifold.

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Wilson loop - Wikipedia, the free encyclopedia
For the Wilson line shipping company, see Thomas Wilson Sons & Co.. In gauge theory, a Wilson loop (named after Kenneth G. Wilson) is a gauge-invariant ...
Thomas Wilson Sons & Co. - Wikipedia, the free encyclopedia
Ship, Launched, Tonnage (GRT), Notes and references.
Old Chester, PA: Transportation: The Wilson Line
May 30, 2006 ... "The Wilson line" at the Market Street Pier, Chester, PA ... The Wilson line "State of Pennsylvania"; Photo courtesy of Chas Browne, Broome.
Wilson Lines in QCD - Nikhef
In this thesis Wilson lines are used to describe the soft radiation. A Wilson ... The path used in the Wilson line is the eikonal path taken by the parton that emits or.
Wilson loop in nLab
Dec 31, 2012 ... A Wilson loop or Wilson line is an observable in (both classical and quantum) gauge theory obtained from the holonomy of the gauge ...
High-Energy QCD and Wilson Lines
Jan 5, 2001 ... The proper degrees of freedom for the fast gluons moving along the straight lines are the Wilson-line operators -- infinite gauge factors ordered ...
Wilson Lines
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Wilson Line - TheShipsList
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Chris Wilson Named USC Defensive Line Coach - University of ...
Jan 17, 2014 ... Chris Wilson, whose 17-year collegiate coaching career has included handling the defensive line at Oklahoma, Colorado, Mississippi State ...
``High-energy QCD and Wilson lines'' | Arizona State University ...
Oct 16, 2013 ... The proper degrees of freedom for fast gluons moving along the straight lines are Wilson-line operators- infinite gauge factors ordered along ...
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Indiana has improved its win total in each of Wilson's three years and posted its ... He served as co-offensive coordinator and offensive line coach (2002-05) and ...
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Kevin R. Wilson - Wikipedia, the free encyclopedia
Wilson played offensive line and linebacker at Maiden High School. ... He went on to play center and guard for the University of North Carolina Tar Heels as a ...
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Books on the term Wilson line
The Wilson Line
The Wilson Line
Arthur G. Credland, 2000
Founded in the early years of the 19th century, the Wilson line became the largest privately-owned steamship fleet in the world.
Boston Harbor
Boston Harbor
Donald Cann, John Galluzzo, 2006
THE Wilson line MOTOR SHIP - BOSTON BELLE Sails Daily from India Wharf, 310 Aflanfic Ave . Bosfon, Mass In the 1950s, after the Nantasket Beach Line went out of business, the Wilson line took over the service from Boston to ...
Thermodynamics and Thermal Engineering
Thermodynamics and Thermal Engineering
J.Selwin Rajadurai, 2003
Since the expansion is isentropic, the expansion through the nozzle is represented as a single vertical line from state 1 to state 2. ... The Wilson line is a saturation line and is approximately parallel to the theoretically correct saturation line.
From Fields to Strings: Circumnavigating Theoretical Physics ...
From Fields to Strings: Circumnavigating Theoretical Physics ...
Misha Shifman, Arkady Vainshtein, J. F. Wheater, 2005
However in models with Wilson line breaking it is possible to have very large threshold corrections to the unification scale while keeping the threshold contribution to gauge couplings small. Given that such Wilson line breaking is very often ...
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Wilson line
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Business bloggers at Harvard Business Review discuss a variety of business topics including managing people, innovation, leadership, and more.
Travis Wilson - Pac-12 Blog - ESPN
Visit Travis Wilson - Pac-12 Blog for information, in-depth analysis and discussion about Travis Wilson
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ATHENS, Ga. -- Chris Wilson needed only about 30 minutes in Georgia’s first preseason practice before he started fiddling with his depth chart.
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The August Wilson Center Dance Ensemble (AWCDE) is breaking new ground and becoming a household name all over the country. After being a featured artist for the SummerStage Series in July 2011, AWCDE starts its second season. What better way to begin a dance season than with world renowned choreographer Sidra Bell.