Correlation energy of a weakly interacting Fermi gas with large interaction potential Benedikter, Niels P ; https://orcid.org/0000-0002-1071-6091 Porta, Marcello Schlein, Benjamin Seiringer, Robert ; https://orcid.org/0000-0002-6781-0521 ddc:510 Recently the leading order of the correlation energy of a Fermi gas in a coupled mean-field and semiclassical scaling regime has been derived, under the assumption of an interaction potential with a small norm and with compact support in Fourier space. We generalize this result to large interaction potentials, requiring only |⋅|V^∈ℓ1(Z3). Our proof is based on approximate, collective bosonization in three dimensions. Significant improvements compared to recent work include stronger bounds on non-bosonizable terms and more efficient control on the bosonization of the kinetic energy. Springer Nature 2023 info:eu-repo/semantics/article doc-type:article text http://purl.org/coar/resource_type/c_2df8fbb1 https://research-explorer.ista.ac.at/record/13225 https://research-explorer.ista.ac.at/download/13225/14535 Benedikter NP, Porta M, Schlein B, Seiringer R. Correlation energy of a weakly interacting Fermi gas with large interaction potential. <i>Archive for Rational Mechanics and Analysis</i>. 2023;247(4). doi:<a href="https://doi.org/10.1007/s00205-023-01893-6">10.1007/s00205-023-01893-6</a> eng info:eu-repo/semantics/altIdentifier/doi/10.1007/s00205-023-01893-6 info:eu-repo/semantics/altIdentifier/issn/0003-9527 info:eu-repo/semantics/altIdentifier/e-issn/1432-0673 info:eu-repo/semantics/altIdentifier/wos/001024369000001 info:eu-repo/semantics/altIdentifier/arxiv/2106.13185 info:eu-repo/semantics/openAccess