Spin Filtering and Entanglement Swapping through Coherent Evolution of a Single Quantum Dot
Spin Filtering and Entanglement Swapping through Coherent Evolution of a Single Quantum Dot
We exploit the nondissipative dynamics of a pair of electrons in a large square quantum dot to perform singlet-triplet spin measurement through a single charge detection and show how this may be used for entanglement swapping and teleportation. The method is also used to generate the Affleck-Kennedy-Lieb-Tasaki ground state, a …