Competing many-body interactions in systems of trapped ions



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Bermúdez, A. and Porras Torres, Diego and Martin-Delgado Alcántara, Miguel Ángel (2009) Competing many-body interactions in systems of trapped ions. Physical review A, 79 (6). ISSN 1050-2947

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We propose and theoretically analyze an experimental configuration in which lasers induce three-spin interactions between trapped ions. By properly choosing the intensities and frequencies of the lasers, three-spin couplings may be dominant or comparable to two-spin terms and magnetic fields. In this way, trapped ions can be used to study exotic quantum phases which do not have a counterpart in nature. We study the conditions for the validity of the effective three-spin Hamiltonian and predict qualitatively the quantum phase diagram of the system.

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©2009 The American Physical Society.
A.B. and M.A.M.D acknowledge financial support from the Spanish MEC Project FIS2006-04885, CAM-UCM/ 910758, and the ESF Science Programme INSTANS 2005-2010. A.B. acknowledges support from a FPU MEC grant.

Uncontrolled Keywords:Phase diagrams; Quantum optics; Spin hamiltonians; Trapped ions
Subjects:Sciences > Physics
ID Code:47444
Deposited On:09 May 2018 10:38
Last Modified:09 May 2018 15:06

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