Algebraic versus Exponential Decoherence in Dissipative Many-Particle Systems
Algebraic versus Exponential Decoherence in Dissipative Many-Particle Systems
The interplay between dissipation and internal interactions in quantum many-body systems gives rise to a wealth of novel phenomena. Here we investigate spin-1/2 chains with uniform local couplings to a Markovian environment using the time-dependent density matrix renormalization group. For the open XXZ model, we discover that the decoherence time …