Unifying quantum heat transfer and superradiant signature in a nonequilibrium collective-qubit system: A polaron-transformed Redfield approach

Chen Xu-Min¹, Wang Chen^{2, †}

Behaviors of steady state heat current J by tuning: (a) temperature bias Δ T = T L − T R with T_>R=0.4, ε=0, and α=0.01; (b) the number of qubits N_>s with T_>L=8, T_>R=0.4, and α=0.01; (c) qubit–bath coupling strength α with T_>L=8, T_>R=0.4, and ε=0. The other parameters are Δ=1 and ω_>c=6.