Quantum Tomography of Entangled Spin-Multiphoton States
Quantum Tomography of Entangled Spin-Multiphoton States
We present a method for quantum tomography of multiqubit states. We apply the method to spin-multiphoton states, which we generate using a quantum dot based device. Periodic excitation of a quantum dot confined spin deterministically generates strings of entangled photons in a cluster state, threefold faster than previously demonstrated. Our …