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Connection between decoherence and excited state quantum phase transitions

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Pérez Fernández, P. and Relaño Pérez, Armando and Arias, J. M. and Dukelsky, J. and García Ramos, J. E. (2010) Connection between decoherence and excited state quantum phase transitions. In La Rabida 2009: International Scientific Meeting on Nuclear Physics: Basic Concepts in Nuclear Physics: Theory, Experiments, And Applications. AIP Conference proceedings (1231). American Institute of Physics (AIP), pp. 233-234. ISBN 978-0-7354-0776-3

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Official URL: http://dx.doi.org/10.1063/1.3428940


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Abstract

In this work we explore the relationship between an excited state quantum phase transition (ESQPT) and the phenomenon of quantum decoherence. For this purpose, we study how the decoherence is affected by the presence of a continuous ESQPT in the environment. This one is modeled as a two level boson system described by a Lipkin Hamiltonian. We will show that the decoherence of the system is maximal when the environment undergoes a continuous ESQPT.


Item Type:Book Section
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© 2010 American Institute of Physics.
La Rabida 2009: International Scientific Meeting on Nuclear Physics: Basic Concepts in Nuclear Physics: Theory, Experiments, And Applications (2009. La Rábida (España).

Uncontrolled Keywords:Quantum decoherence; Excited quantum phase transition
Subjects:Sciences > Physics
ID Code:35527
Deposited On:04 Feb 2016 14:35
Last Modified:04 Feb 2016 14:35

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