We investigate a new class of entangled states, which we call 'hyperentangled',that have EPR correlations identical to those in the vacuum state of a relativistic quantum field. We show that whenever hyperentangled states exist in any quantum theory, they are dense in its state space. We ...
We investigate a new class of entangled states, which we call 'hyperentangled',that have EPR correlations identical to those in the vacuum state of a relativistic quantum field. We show that whenever hyperentangled states exist in any quantum theory, they are dense in its state space. We als...
Two-photon multiqubit hyperentangled/cluster states.doi:10.1063/1.3131293We describe the realization of a 6-qubit hyperentangled state by entangling two photons in three degrees of freedom. These correspond to the polarization, the longitudinal momentum and the indistinguishable emission produced by a 2...
The Rydberg states are formed by exciting the atoms to higher energy levels, where the lifetime of the excited states increases (∼ms). Due to the larger effective atom size, the dipole moment of the atoms also increases, which in turn enhances the atom–light interaction56....
However, if the sender (Alice) and the receiver (Bob) already share an entangled pair of qubits, then they may use a number of techniques to transfer quantum states using only classical information channels. In single-qubit quantum teleportation (QT, Fig. 1a)3, Alice performs a measurement ...
Sergienko A V, Atature M, Di Giuseppe G, Jaeger G, Saleh B E A and Teich M C, "Hyper-entangled states and free-space quantum cryptography", Free-Space Laser Communication and Laser Imaging II: Proc. SPIE 4821, pp. 352-362, 2002...
entangled statesquantum statesBell inequalitiesnonlocalityparametric down-conversionEntangled states are central to the new field of quantum information, including quantum dense coding, teleportation, and computation. However, only a relatively small class of entangled states has been discussed extensively, ...
These states, which double the extension of the available qubits, are engineered by a simple experimental method which uses linear optics and a single Type I nonlinear crystal. The AVN test of local realism represents a generalization of the GHZ to the case of two entangled particles and two ...
The realization of an entangled state of two photons encoded in six (or even more) qubits, which can be transformed in a cluster state by suitable C-Phase gates, may represent a significant step towards the realization of efficient quantum computation based on the one-way model....
Hyper-entangled stateBell-state measurementWe propose the symmetry bidirectional quantum teleportation scheme by using a bi-photon Bell-class hyper-entangled state as quantum channel. Two distant parties, Alice and Bob can simultaneously teleport the desired one-qubit states each other via Bell-state ...