Entanglement negativity of fermions: Monotonicity, separability criterion, and classification of few-mode states
Entanglement negativity of fermions: Monotonicity, separability criterion, and classification of few-mode states
We study quantum information aspects of the fermionic entanglement negativity recently introduced in [Phys. Rev. B 95, 165101 (2017)] based on the fermionic partial transpose. In particular, we show that it is an entanglement monotone under the action of local quantum operations and classical communications--which preserves the local fermion-number parity-- …