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...
Here we propose two schemes for the generation of entangled Bell states in the polarization degree of freedom (DOF) and hyperentangled Bell states in both the polarization and spatial-mode DOFs on two-photon systems, assisted by diamond nitrogen-vacancy (NV) centers coupled with whispering-gallery...
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...
These hyper-entangled states have been distributed over a long distance39,40 and also have been applied to quantum teleportation experiments41,42. Beyond work generating such hyper-entangled pairs, there are also protocols for purifying their entanglement, which helps to deterministically obtain ...
In the process of distinguishing the 64 hyperentangled Bellstates in three DOFs, the weak cross-Kerr nonlinearity and self-assisted mechanism areboth utilized, which can make our scheme simple and realizable. We also discuss theapplication of this complete HBSA scheme in quantum teleportation that ...
www.nature.com/scientificreports OPEN received: 12 November 2015 accepted: 05 February 2016 Published: 25 February 2016 Complete nondestructive analysis of two-photon six-qubit hyperentangled Bell states assisted by cross-Kerr nonlinearity Qian Liu, Guan-Yu Wang, Qing Ai, Mei Zhang & Fu...
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 ...