Classical and Quantum Correlations in Thermal Jaynes-Cummings Model
Institute of Electrical and Electronics Engineers (IEEE) (2001) 102-103
Entangling capacity of global phases and implications for the Deutsch-Jozsa algorithm
Physical Review A Atomic Molecular and Optical Physics 64:6 (2001) 062308/9
Abstract:
The generation of entanglement through global phase functions was studied. Necessary and sufficient conditions for the application of global phases to the pure product state to result in entanglement were obtained. The maximum entanglement creation by global phases was considered as well as its corresponding examples.Maximally Entangled Mixed States for Two Qubits
Optics InfoBase Conference Papers (2001)
Abstract:
The recent developments in quantum information have lead to a renewed interest in multi particle quantum mechanics. A two-qubit system displays many of the paradoxical features of quantum mechanics such as superposition and entanglement. Such states can be partially characterized by their degree of impurity and degree of entanglement. We specifically examine the class of states that have the maximum amount of entanglement (EOF) for a given degree of impurity. We show how these states are more entangled than the Werner like state for a given degree of mixture for several measures of entanglement.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