Local operation on identical particles systems

Systems of Identical Particles

1 States 1 1.

Entanglement of Identical Particles

Criteria for the entanglement of composite systems of identical particles ∗

We identify a general criterion for detecting entanglement of pure bipartite quantum states describing a system of two identical particles. Such a criterion is based both on the consideration of the Slater-Schmidt number of the fermionic and bosonic analog of the Schmidt decomposition and on the evaluation of the von Neumann entropy of the one-particle reduced statistical operators.

Distinguishable-and Indistinguishable-particle Descriptions of Systems of Identical Particles

The problem of distinguishability of identical particles is considered from both experimental and theoretical points ofview. It is argued that distinguishability has to be defined relative to a definite set of experiments and that the criterion by which the particies are distinguished should be specified. Faiiure to do so may cause mismatching between theory and experiment. On the theoretical l...

Dissipative quantum metrology in manybody systems of identical particles

Estimation of physical parameters is essential in almost any part of science and technology. The enhancement of performance in this task (e.g. beating the standard classical shot-noise limit) using available physical resources is a major goal in metrology. Quantum metrology in closed systems has indicated that entanglement in such systems may be a useful resource. However, whether in open quant...