2 papers
cond-mat.str-el2026
Dissipation-induced bulk and boundary criticality in the Haldane chain
Zhenjiu Wang, Manuel Weber
We study the Haldane chain coupled to a dissipative ohmic bath. Using large-scale quantum Monte Carlo simulations, we identify a second-order quantum phase transition into an antif…
cond-mat.str-el2026
Tunable quantum criticality and pseudocriticality across the fixed-point annihilation in the anisotropic spin-boson model
Manuel Weber
Spin-boson models are simple examples of quantum dissipative systems, but also serve as effective models in quantum magnetism and exhibit nontrivial criticality. Recently, they hav…