In recent years, a number of theoretical and experimental demonstrations regarding the use of photonic entangled states based on many qubits, spanning a large size Hilbert space has been provided. The entanglement of two particles in more than one degree of freedom, namely hyperentanglement, is a useful technique which allows to take full advantage of the possibilities offered by quantum mechanics. Compared to multiphoton entangled states, hyperentangled states offer important advantages as far as purity and generation/detection rate are concerned. The present work is intended to survey the most relevant examples of hyperentangled multiqubit photon states aimed at the verification of fundamental tests of quantum mechanics and the realization of important quantum information protocols.
Generation and Applications of n-Qubit Hyperentangled Photon States
VALLONE, GIUSEPPE;
2011
Abstract
In recent years, a number of theoretical and experimental demonstrations regarding the use of photonic entangled states based on many qubits, spanning a large size Hilbert space has been provided. The entanglement of two particles in more than one degree of freedom, namely hyperentanglement, is a useful technique which allows to take full advantage of the possibilities offered by quantum mechanics. Compared to multiphoton entangled states, hyperentangled states offer important advantages as far as purity and generation/detection rate are concerned. The present work is intended to survey the most relevant examples of hyperentangled multiqubit photon states aimed at the verification of fundamental tests of quantum mechanics and the realization of important quantum information protocols.Pubblicazioni consigliate
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