Physics – Quantum Physics
Scientific paper
2008-05-14
Phys. Rev. A 78, 022328 (2008)
Physics
Quantum Physics
5 pages, 2 figures. New title, improved explanation of the algorithm. To appear in Phys. Rev. A
Scientific paper
10.1103/PhysRevA.78.022328
We review the generation of random pure states using a protocol of repeated two qubit gates. We study the dependence of the convergence to states with Haar multipartite entanglement distribution. We investigate the optimal generation of such states in terms of the physical (real) time needed to apply the protocol, instead of the gate complexity point of view used in other works. This physical time can be obtained, for a given Hamiltonian, within the theoretical framework offered by the quantum brachistochrone formalism. Using an anisotropic Heisenberg Hamiltonian as an example, we find that different optimal quantum gates arise according to the optimality point of view used in each case. We also study how the convergence to random entangled states depends on different entanglement measures.
Borras A.
Casas M.
Majtey A.
No associations
LandOfFree
Efficient generation of random multipartite entangled states using time optimal unitary operations does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Efficient generation of random multipartite entangled states using time optimal unitary operations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Efficient generation of random multipartite entangled states using time optimal unitary operations will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-55912