Articles dans des revues à comité de lecture
|On logarithmic extensions of local scale-invariance|
|Nucl. Phys. B869 (2013) [FS] 282-302|
|DOI : 10.1016/j.nuclphysb.2012.12.007|
|ArXiv : arxiv:1009.4139 [PDF]|
The known logarithmic extensions of conformal and Schroedinger-invariance assume translation-invariance in their spatial and temporal coordinates. Therefore, they cannot be applied directly to slow far-from-equilibrium relaxations, where time-translation-invariance no longer holds. Here, the logarithmic extension of ageing-invariance, that is local dynamical scaling without the assumption of time-translation-invariance, is presented. Co-variant two-point functions are derived. Their form is compared to transfer-matrix renormalisation group data for the two-time autoresponse function of the $1D$ critical contact process, which is in the directed percolation universality class.