AI Article Synopsis
- A new formalism is introduced to analyze how high-momentum responses work in Fermi liquids, particularly focusing on liquid 3He.
- The theory builds on the existing Gersch-Rodriguez approach and incorporates Fermi statistics with a new term based on the two-body density matrix.
- By using a realistic momentum distribution derived from diffusion Monte Carlo and adding corrections, the study finds strong agreement with deep-inelastic neutron scattering data.
Article Abstract
A final-state-effects formalism suitable to analyze the high-momentum response of Fermi liquids is presented and used to study the dynamic structure function of liquid 3He. The theory, developed as a natural extension of the Gersch-Rodriguez formalism, incorporates the Fermi statistics explicitly through a new additive term which depends on the semidiagonal two-body density matrix. The use of a realistic momentum distribution, calculated using the diffusion Monte Carlo method, and the inclusion of this additive correction allows for good agreement with available deep-inelastic neutron scattering data.
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| http://dx.doi.org/10.1103/PhysRevLett.92.085301 | DOI Listing |
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