Teleportation via decay
Pramana - Journal of Physics 56:2-3 (2001) 383-391
Abstract:
We present a rare example of a decay mechanism playing a constructive role in quantum information processing. We show how the state of an atom trapped in a cavity can be teleported to a second atom trapped in a distant cavity by the joint detection of photon leakage from the cavities. The scheme, which is probabilistic, requires only a single three level atom in a cavity. We also show how this scheme can be modified to a teleportation with insurance.Thermal concurrence mixing in a one-dimensional Ising model
Physical Review A. Atomic, Molecular, and Optical Physics 64:4 (2001) 423021-423027
Abstract:
The natural thermal entanglement in an Ising ring in an external magnetic field was studied. The interactions of two qubits via the Ising interaction in a magnetic field orthogonal to the z direction was analyzed. A theorem for the concurrence mixing due to occupation of the ground and the excited state was formulated. The variation of entanglement with the orientation of magnetic field was numerically considered.Foundations and Interpretation of Quantum Mechanics Gennaro Auletta, World Scientific, Singapore, 2000
Progress in Quantum Electronics Elsevier 25:4 (2001) 191
Entanglement in a 1D Ising model
Optica Publishing Group (2001) pa16
Subsystem purity as an enforcer of entanglement (Phys. Rev. Lett. 87, art. no. 050401, 2001)
PHYSICAL REVIEW LETTERS 87:27 (2001) ARTN 279901