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4 papers · 2 filters
Particle resonance in the (1+1)-dimensional Dirac equation with kink-like vector potential and delta interaction
M. Eshghi, H. Mehraban, Sameer M. Ikhdair
The relativistic problem of spin- fermions subject to vector hyperbolic (kink-like) potential tanh (kx) is investigated by using the parametric Nikiforov-Uvarov method. The energy…
Dynamics of Entanglement and Nonclassical Correlation for Four-Qubit GHZ State
P. Espoukeh, R. Rahimi, S. Salimi +1
Many-qubit entanglement is crucial for quantum information processing although its exploitation is hindered by the detrimental effects of the environment surrounding the many-qubit…
Quantum Secret Sharing and Random Hopping; Using single states instead of entanglement
Vahid Karimipour, Marzieh Asoudeh
Quantum protocols for secret sharing usually rely on multi-party entanglement which with present technology is very difficult to achieve. Recently it has been shown that sequential…
The lower bound to the concurrence for four-qubit W state under noisy channels
Pakhshan Espoukeh, Pouria Pedram
We study the dynamics of four-qubit W state under various noisy environments by solving analytically the master equation in the Lindblad form in which the Lindblad operators corres…