Correlation in states of two identical particles
arXiv:0805.3867 · doi:10.1209/0295-5075/88/10006
Abstract
We identify the correlation in a state of two identical particles as the residual information beyond what is already contained in the 1-particle reduced density matrix, and propose a correlation measure based on the maximum entropy principle. We obtain the analytical results of the correlation measure, which make it computable for arbitrary two-particle states. We also show that the degrees of correlation in the same two-particle states with different particle types will decrease in the following order: bosons, fermions, and distinguishable particles.
3.6 pages
References in corpus (5)
- On the quantum, classical and total amount of correlations in a quantum state
- General criterion for the entanglement of two indistinguishable particles
- Quantum mutual information and the one-time pad
- Irreducible multi-particle correlations in states without maximal rank
- Geometric phase of an atom in a magnetic storage ring