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In this paper we examine the effects of electron-hole asymmetry as aconsequence of strong correlations on the electronic Raman scattering in thenormal state of copper oxide high temperature superconductors. Usingdeterminant quantum Monte Carlo simulations of the single-band Hubbard model,we construct the electronic Raman response from single particle Green'sfunctions and explore the differences in the spectra for electron and holedoping away from half filling. The theoretical results are compared to new andexisting Raman scattering experiments on hole-doped La$_{2-x}$Sr$_{x}$CuO$_{4}$and electron-doped Nd$_{2-x}$Ce$_{x}$CuO$_{4}$. These findings suggest that theHubbard model with fixed interaction strength qualitatively captures the dopingand temperature dependence of the Raman spectra for both electron and holedoped systems, indicating that the Hubbard parameter U does not need to bedoping dependent to capture the essence of this asymmetry.

An Investigation of Particle-Hole Asymmetry in the Cuprates via Electronic Raman Scattering