Abstract
We investigate the infrared behaviour of the gluon propagator in Lan-dau gauge on a lattice with twisted boundary conditions. Analytic calculationsusing Dyson-Schwinger equations, exact renormalization group and stochasticquantization show that the Landau gauge gluon propagator approaches zerofor small momentum. On the other hand lattice calculations seem to indicatea non-zero infrared limit. One possible explanation for this difference is theexistence of zero-momentum fluctuation modes which potentially give rise to amassive contribution to the gluon propagator. Our simulations show that withtwisted boundary conditions these zero-momentum modes are suppressed andthe gluon propagator is reduced in the infrared compared to a periodic latticeensemble.
Original language | English |
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Title of host publication | Proceedings of Science: 23rd International Symposium on Lattice Field Theory |
Editors | Alan Irving, Craig McNeile, Chris Michael |
Place of Publication | Italy |
Publisher | Sissa Medialab Srl |
Number of pages | 5 |
DOIs | |
Publication status | Published - 2005 |
Externally published | Yes |
Event | International Symposium on Lattice Field Theory - Trinity College, Dublin, Ireland Duration: 25 Jul 2005 → 30 Jul 2005 Conference number: 23rd |
Publication series
Name | Proceedings of Science |
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Publisher | Sissa Medialab srl |
Volume | 20 |
Conference
Conference | International Symposium on Lattice Field Theory |
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Country/Territory | Ireland |
City | Dublin |
Period | 25/07/05 → 30/07/05 |