Disentanglement of Three-qubit States Coupled to an XY Spin Chain with Multisite Interaction

Xie, Li-Jun; Zhang, Deng-Yu; Wang, Xin-Wen; Tang, Shi-Qing; Zhan, Xiao-Gui; Gao, Feng
October 2011
International Journal of Theoretical Physics;Oct2011, Vol. 50 Issue 10, p3096
Academic Journal
The entanglement dynamics of three-qubit states coupled to a general XY spin-chain with a three-site interaction environment is investigated. By using negativity as entanglement measure, we find that the entanglement evolution depends on not only the system-environment couplings but also the strength of three-site interaction. In the strong-coupling region, the three-site interaction can remarkably enhance the decay of the entanglement of three-qubit states. However, in the weak-coupling region, the process of disentanglement depends on the strength of the three-site interaction.


Related Articles

  • NUMERICAL SIMULATION OF A MACRO-QUANTUM EXPERIMENT:: OSCILLATING WAVE PACKET. NOTTALE, LAURENT; LEHNER, THIERRY // International Journal of Modern Physics C: Computational Physics;May2012, Vol. 23 Issue 5, p1250035-1 

    We perform numerical simulations of a new proposal of laboratory experiment that would allow the transformation of a classical fluid into a quantum-type (super)fluid through the application of a generalized quantum potential. This quantum potential is simulated by using a real time retroactive...

  • Wigner function description of a qubit-oscillator system. Allen, James; Zagoskin, A. M. // Low Temperature Physics;Mar2013, Vol. 39 Issue 3, p289 

    We derive Bloch-type equations of motion for the Wigner function of a qubit nonlinearly coupled to a linear oscillator, and investigate their application to the quantum-classical transition.

  • The Geometry and Dynamics of Lifelogs: Discovering the Organizational Principles of Human Experience. Sreekumar, Vishnu; Dennis, Simon; Doxas, Isidoros; Zhuang, Yuwen; Belkin, Mikhail // PLoS ONE;May2014, Vol. 9 Issue 5, p1 

    A correlation dimension analysis of people’s visual experiential streams captured by a smartphone shows that visual experience is two-scaled with a smaller dimension at shorter length scales than at longer length scales. The bend between the two scales is a phase transition point where...

  • Quantum correlation dynamics of a three-qubit system coupled to an XY spin chain. Guo, Jin-Liang; Long, Gui-Lu // European Physical Journal D -- Atoms, Molecules, Clusters & Opti;Mar2013, Vol. 67 Issue 3, p1 

    We study the dynamics of multipartite quantum correlations measured by the lower bound of concurrence and quantum discord in a three-qubit system coupled to an XY spin chain. For the initial pure GHZ and W state, we find the lower bound of entanglement is more robust than the quantum discord...

  • Quantum dynamical structure factor of liquid neon via a quasiclassical symmetrized method. Monteferrante, Michele; Bonella, Sara; Ciccotti, Giovanni // Journal of Chemical Physics;2/7/2013, Vol. 138 Issue 5, p054118 

    We apply the phase integration method for quasiclassical quantum time correlation functions [M. Monteferrante, S. Bonella, and G. Ciccotti, Mol. Phys. 109, 3015 (2011)] to compute the dynamic structure factor of liquid neon. So far the method had been tested only on model systems. By comparing...

  • Effective dynamics for two-atom entanglement and quantum information processing by coupled cavity QED systems. Yang, Z. B.; Wu, H. Z.; Xia, Y.; Zheng, S. B. // European Physical Journal D -- Atoms, Molecules, Clusters & Opti;Feb2011, Vol. 61 Issue 3, p737 

    We propose a scheme for deterministic generation of entanglement embodied by two $\Lambda $-type atoms distributed in two coupled cavities. We study such a system in the dispersive atom-field interactions, where the dynamics of the system operates through the virtual population of both the...

  • Semiclassical theory in phase space for molecular processes. III. Electronically nonadiabatic transitions in multidimensional systems. Takatsuka, Kazuo; Nakamura, Hiroki // Journal of Chemical Physics;11/15/1986, Vol. 85 Issue 10, p5779 

    A theory for electronically nonadiabatic transition in a multidimensional system is presented in the scheme of phase space quantum theory. The previously proposed phase space distribution function called DCF (dynamical characteristic function) is generalized to this case and coupled equations of...

  • Quantum Phase Transition and Engineering in Two-Component BEC in Optical Lattices. Yong-Shi Wu // Modern Physics Letters B;7/10/2003, Vol. 17 Issue 16, p847 

    In this paper we review recent progress in studying quantum phase transitions in one- and two-component Bose–Einstein condensates (BEC) in optical lattices. These phase transitions involve the emergence and disappearance of quantum coherence over the whole optical lattice and of linear...

  • Conformal Invariance and Critical Exponents in Two Dimensions. Friedan, Daniel; Shenker, Stephen // Physics Today;Jan87, Vol. 40 Issue 1, p117 

    Focuses on the aspects of phase transitions. Changes of boiling point of water from liquid to gas. Molecular spaces of water; Rotational symmetry of quantum mechanics.


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics