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Journal articles
Pure and Random Quantum Ising Chain : Shannon and Renyi entropies of the ground state via real space renormalization
Abstract : The Shannon and the Renyi entropies of the ground state wavefunction in the pure and in the random quantum Ising chain are studied via the self-dual Fernandez-Pacheco real-space renormalization procedure. In particular, we analyze the critical behavior of the leading extensive term at the quantum phase transition : the derivative with respect to the control parameter is found to be logarithmically divergent in the pure case, and to display a cusp singularity in the random case. This cusp singularity for the random case is also derived via the Strong Disorder Renormalization approach.
Cited literature [28 references]
https://hal-cea.archives-ouvertes.fr/cea-01322501
Contributor : Emmanuelle de Laborderie Connect in order to contact the contributor
Submitted on : Friday, May 27, 2016 - 11:29:22 AM
Last modification on : Wednesday, April 14, 2021 - 12:12:25 PM
Long-term archiving on: : Sunday, August 28, 2016 - 10:27:30 AM
Contributor : Emmanuelle de Laborderie Connect in order to contact the contributor
Submitted on : Friday, May 27, 2016 - 11:29:22 AM
Last modification on : Wednesday, April 14, 2021 - 12:12:25 PM
Long-term archiving on: : Sunday, August 28, 2016 - 10:27:30 AM
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1501.05416v2.pdf
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