Layer plasmons and high-<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi>T</mml:mi></mml:mrow><mml:mrow><mml:mi>c</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:math>superconductivity

We study a layered electron-gas model for the high-${T}_{c}$ copper oxides. The formation of plasmon bands by the interlayer Coulomb interaction is shown to ...