Spatial Entanglement of Fermions in One-Dimensional Quantum Dots

The time-dependent quantum Monte Carlo method for fermions is introduced and applied in the calculation of entanglement electrons one-dimensional dots with several spin-polarized spin-compensated electron configurations. rich statistics wave functions provided by this allow one to build reduced density matrices each electron, quantify spatial using measures such as entropy treating identical or distinguishable particles. Our results indicate that parallel-spin configurations rather small, determined mostly nonlocality ground state. By contrast, case, outermost opposite-spin interact like bosons, which prevails their entanglement, while inner-shell remain largely at Hartree–Fock geometry. findings are close correspondence numerically exact results, wherever comparison possible.