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quant-ph2004
Entanglement in a Two-Qubit Ising Model Under a Site-Dependent External Magnetic Field
Andreas F. Terzis, Emmanuel Paspalakis
We investigate the ground state and the thermal entanglement in the two-qubit Ising model interacting with a site-dependent magnetic field. The degree of entanglement is measured b…
quant-ph2003
Arbitrary rotation and entanglement of flux SQUID qubits
Z. Kis, E. Paspalakis
We propose a new approach for the arbitrary rotation of a three-level SQUID qubit and describe a new strategy for the creation of coherence transfer and entangled states between tw…
quant-ph2003
Enhanced Nonlinear Generation in a Three-Level Medium with Spatially Dependent Coherence
E. Paspalakis, Z. Kis
We consider a method for efficient parametric generation of a laser pulse. A single laser field is injected to a three-level medium which has two lower states and one excited state…