کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1855112 | 1529887 | 2012 | 16 صفحه PDF | دانلود رایگان |
We compute the topological entropy of the toric code models in arbitrary dimension at finite temperature. We find that the critical temperatures for the existence of full quantum (classical) topological entropy correspond to the confinement–deconfinement transitions in the corresponding Z2Z2 gauge theories. This implies that the thermal stability of topological entropy corresponds to the stability of quantum (classical) memory. The implications for the understanding of ergodicity breaking in topological phases are discussed.
► We calculate the topological entropy of a general toric code in any dimension.
► We find phase transitions in the topological entropy.
► The phase transitions coincide with the appearance of quantum/classical memory.
Journal: Annals of Physics - Volume 327, Issue 9, September 2012, Pages 2096–2111