García Pérez, M.González Arroyo, A.Martínez, P.Fernández Pérez, Luis AntonioMuñoz Sudupe, AntonioRuiz Lorenzo, J. J.Azcoiti, V.Campos, I.Ciria, J.C.Cruz, A.Íñiguez, D.Lesmes, F.Badoni, D.Pech, J.2023-06-202023-06-201993-05-2010.1016/0370-2693(93)91069-yhttps://hdl.handle.net/20.500.14352/60185© 1993 Published by Elsevier B.V. Partially supported by DGA-PIT-2/89 and CICyT: TIC1161/90-E, TIC91-0963-C02, AEN90-0034, AEN90-0272 and AEN90-0030 and Fyzikální ústav Ӑkademie, Praha, Czech Rep.We study SU(2) lattice gauge theory in small volumes and with twist m ⃗ = (1, 1, 1). We investigate the presence of the periodic instantons of Q = 1/2 and determine their free energy and their contribution to the splitting of energy flux sectors E(e ⃗ = (1, 1, 1)) − E(e ⃗ = (0, 0, 0)).engjournal articlehttp://dx.doi.org/10.1016/0370-2693(93)91069-yhttp://www.sciencedirect.comopen access53Lattice Gauge-theoryPermanent quark confinementSpectrumVacuumEnergy.Física-Modelos matemáticos