2-CHANNEL KONDO-LATTICE - AN INCOHERENT METAL

The paramagnetic phase of the two-channel Kondo lattice model is exami ned with a quantum Monte Carlo simulation in the limit of infinite dim ensions. We find non-Fermi-liquid behavior at low temperatures includi ng a finite low-temperature single-particle scattering rate, no Fermi distribution discontinuity, and zero Drude weight. However, the low-en ergy density of electronic states is finite. We label our model system in this phase an ''incoherent metal.'' We discuss the relevance of ou r results for concentrated heavy fermion metals with non-Fermi-liquid behavior.