Entanglement in a 3-spin Heisenberg-XY chain with nearest-neighbor interactions, simulated in an NMR quantum simulator

Rao, Rama Koteswara K ; Kumar, Anil (2012) Entanglement in a 3-spin Heisenberg-XY chain with nearest-neighbor interactions, simulated in an NMR quantum simulator International Journal of Quantum Information, 10 (04). 1250039_1-1250039_15. ISSN 0219-7499

Full text not available from this repository.

Official URL: http://www.worldscientific.com/doi/abs/10.1142/S02...

Related URL: http://dx.doi.org/10.1142/S0219749912500396

Abstract

The evolution of entanglement in a 3-spin chain with nearest-neighbor Heisenberg-XY interactions for different initial states is investigated here. In an NMR experimental implementation, we generate multipartite entangled states starting from initial separable pseudo-pure states by simulating nearest-neighbor XY interactions in a 3-spin linear chain of nuclear spin qubits. For simulating XY interactions, we follow algebraic method of Zhang et al. [Phys. Rev. A72 (2005) 012331]. Bell state between end qubits has been generated by using only the unitary evolution of the XY Hamiltonian. For generating W-state and GHZ-state a single qubit rotation is applied on second and all the three qubits, respectively after the unitary evolution of the XY Hamiltonian.

Item Type:Article
Source:Copyright of this article belongs to World Scientific Publishing Company.
Keywords:Entanglement Generation; Heisenberg-XY Spin Chain; NMR Quantum Information Processing
ID Code:95811
Deposited On:26 Nov 2012 07:35
Last Modified:26 Nov 2012 07:35

Repository Staff Only: item control page