THE DECONFINING PHASE OF SU(2) YANG-MILLS THERMODYNAMICS

摘要

We discuss nonperturbative SU(2) Yang-Mills thermodynamics in the de-confiningphase. The maximal resolution of trivial-topology fluctuations is set by coarse-grained, interacting calorons and anticalorons: The effective loop expansion is very efficient. Postulating that SU(2)_(CMB) today from velence U(1)_(Y), a modification of thermalized, low-momentum photon propagation is predicted for temperatures a few times 2.7 K. Phenomenological implications are: magnetic-field induced dichroism and birefringence at a temperature of 4.2 K (PVLAS), stability of cold and dilute H1 clouds, and absence of low-l correlations in the TT CMB power spectrum.