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Free keywords:
ATOMIC ENSEMBLES; SINGLE-PHOTON; ENTANGLEMENT; DISTANCE; CREATION; STATEOptics; Physics; eigenvalues and eigenfunctions; ground states; Hilbert spaces; quantum
computing; quantum entanglement; quantum optics;
Abstract:
We propose a scheme enabling the universal coupling of angular momentum of N remote noninteracting qubits using linear optical tools only. Our system consists of N single-photon emitters in a Lambda configuration that are entangled among their long-lived ground-state qubits through suitably designed measurements of the emitted photons. In this manner, we present an experimentally feasible algorithm that is able to generate any of the 2(N) symmetric and nonsymmetric total angular momentum eigenstates spanning the Hilbert space of the N-qubit compound.
