Quantum control on entangled bipartite qubits

Abstract

Ising interaction between qubits could produce distortion in entangled pairs generated for engineering purposes (as in quantum computation) in presence of parasite magnetic fields, destroying or altering the expected behavior of process in which is projected to be used. Quantum control could be used to correct that situation in several ways. Sometimes the user should be make some measurement upon the system to decide which is the best control scheme; other posibility is try to reconstruct the system using similar procedures without perturbate it. In the complete pictures both schemes are present. We will work first with pure systems studying advantages of different procedures. After, we will extend these operations when time of distortion is uncertain, generating a mixed state, which needs to be corrected by suposing the most probably time of distortion.

10 pages, 5 figures

References in corpus (6)

• Quantum Control of a Single Qubit
• Coulomb scattering in a 2D interacting electron gas and production of EPR pairs
• Discriminating multi-partite entangled states
• Elliptic functions and efficient control of Ising spin chains with unequal couplings
• Fidelity, entanglement, and information complementarity relation
• Entanglement and control operations in Ising interactions of bipartite qubits

Cited by in corpus (5)

• Algebraic and group structure for bipartite three dimensional anisotropic Ising model on a non-local basis
• Characterization process of emission sources of spin entangled pairs with several species
• Measurement in control and discrimination of entangled pairs under self-distortion
• Generation of non-local evolution loops and exchange operations for quantum control in three dimensional anisotropic Ising model
• Teleportation algorithm using two species of entangled pairs