Fe b 20 05 A Quantum Many-Body Instability in the Thermodynamic Limit

@inproceedings{Frasca2008FeB2,
  title={Fe b 20 05 A Quantum Many-Body Instability in the Thermodynamic Limit},
  author={Marco Frasca},
  year={2008}
}
Intrinsic decoherence in the thermodynamic limit is shown for a large class of many-body quantum systems in the unitary evolution in NMR and cavity QED. The effect largely depends on the inability of the system to recover the phases. Gaussian decaying in time of the off-diagonal terms in the density matrix is proved. Applications to spin systems and… CONTINUE READING