Ground states of fermionic Hamiltonians limited to M-body interactions cannot achieve maximal M-body entanglement.
Entropy and entanglement bounds for reduced density matrices of fermionic states
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abstract
Unlike bosons, fermions always have a non-trivial entanglement. Intuitively, Slater determinantal states should be the least entangled states. To make this intuition precise we investigate entropy and entanglement of fermionic states and prove some extremal and near extremal properties of reduced density matrices of Slater determinantal states.
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quant-ph 1years
2026 1verdicts
UNVERDICTED 1representative citing papers
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Many-Body Entanglement Properties of Finite Interacting Fermionic Hamiltonians
Ground states of fermionic Hamiltonians limited to M-body interactions cannot achieve maximal M-body entanglement.