We reexamine the cosmological constant (CC) problem in a finite temperature setup and propose an intriguing possibility of carrying out perturbative analysis by employing renormalization scheme which renormalized Higgs mass (or resummed mass, to be more precise) is taken on order cosmic microwave background (CMB) temperature. Our proposal hinges fact that although physical value CC does not dep...

The ground states of noninteracting fermions in one-dimension with chiral symmetry form a class topological band insulators, described by invariant that can be related to the Zak phase. Recently, generalization this quantity open systems---known as ensemble geometric phase (EGP)---has emerged robust way describe topology at nonzero temperature. By using quantity, we explore nature allowed for d...