Quantum critical phenomena in heat transport via a two-state system
arXiv:1809.03688 · doi:10.1103/PhysRevB.98.245412
Abstract
We present a theoretical study of the quantum critical behavior in heat transport via a two-state system with sub-ohmic reservoirs. We calculate the temperature dependence of the thermal conductance near the quantum phase transition via the continuous-time quantum Monte Carlo method and discuss its critical exponents. We also propose a superconducting circuit to realize the sub-ohmic spin-boson model that can be used to observe quantum critical phenomena.
8 pages, 6 figures