Pair reduction of a pair-interacting simple Fermion fluid^*

* Elaboration of a lecture given at the 2015 Guelph Conference on Quantum Marginals.

(adrift in a sea of loose ends)

ABSTRACT

This is a somewhat biased review of the background and current state of the use of reduced density matrices (also known as quantum marginals) to convert the analysis of pair-interacting single species stationary Fermion systems to operations involving only few-particle intermediates. Emphasis is placed on bounds on low-lying energy levels in particular, and on few-particle expectations in general.

GRAPHICAL ABSTRACT

Keywords:

• Fermion fluid
• reduced density matrix
• universal inequalities
• interaction-dependent expectations

Disclosure statement

There is no potential conflict of interest.

Notes

* Elaboration of a lecture given at the 2015 Guelph Conference on Quantum Marginals.