FROM TOMONAGA-LUTTINGER TO FERMI-LIQUID IN TRANSPORT THROUGH A TUNNELING BARRIER

The finiteness of the length of a one-channel win results in a crossov er from Tomonaga-Luttinger to Fermi-Liquid behavior with lowering ener gy scale. Under the condition that the voltage drop (V) mostly occurs across a tunnel barrier inside the wire, we determined the coefficient s of temperature and voltage expansion for low-energy conductance as a function of the interaction strength and the right and left traversal times. At higher voltage, the finite-length contribution exhibits osc illations related to both traversal times and becomes a slowly decayin g correction to the scale-invariant V1/g-1 dependence of the conductan ce.