One-dimensional electron fluid at high density

Electron-electron interaction and tunnel density of states at the Fermi level in high-density two- dimensional electron system

The zero bias anomaly (ZBA) of the tunnel conductivity are investigated in the Al/δ−GaAs tunnel structure with 2D electron concentration in δ-layer to be equal to 3.6∗10 cm−2. We find that the dip (ZBA) in the tunnel density of states near the Fermi level EF reveals logarithmic dependence on the energy ε in the range kT < ε< h̄/τ . Here ε is the energy relative to EF and τ is the elastic relaxat...

A dimerized spin fluid in a one-dimensional electron system

The ground state of a one-dimensional Hubbard model with a bond-charge attraction W term at half-filling is investigated by the density matrix renormalization group method. It is confirmed that the spin gap will be closed at U > 8W . But the long-range bond order wave survives even when the spin gap is closed. It indicates that the ground state is a novel dimerized spin fluid at U > 8W . By a c...

One-dimensional time-dependent fluid model of a very high density low-pressure inductively coupled plasma

High-density correlation energy expansion of the one-dimensional uniform electron gas.

We show that the expression of the high-density (i.e., small-r(s)) correlation energy per electron for the one-dimensional uniform electron gas can be obtained by conventional perturbation theory and is of the form ε(c)(r(s)) = -π(2)/360 + 0.00845r(s) + ..., where r(s) is the average radius of an electron. Combining these new results with the low-density correlation energy expansion, we propose...

Universal correlations of one-dimensional electrons at low density

We summarize results on the asymptotics of the two-particle Green functions of interacting electrons in one dimension. Below a critical value of the chemical potential the Fermi surface vanishes, and the system can no longer be described as a Luttinger liquid. Instead, the non-relativistic Fermi gas with infinite point-like repulsion becomes the universal model for the long-wavelength, low temp...