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Please use this identifier to cite or link to this item: http://hdl.handle.net/10481/32293

Title: Characterization of a quantum phase transition in Dirac systems by means of the wavepacket dynamics
Authors: Romera Gutiérrez, Elvira
Torres, J. J.
Issue Date: 2012
Abstract: We study the signatures of phase transitions in the time evolution of wave-packets by analyzing two simple model systems: a graphenequantum dot model in a magnetic field and a Diracoscillator in a magnetic field. We have characterized the phase transitions using the autocorrelation function. Our work also reveals that the description in terms of Shannon entropy of the autocorrelation function is a clear phase transition indicator.
Sponsorship: This work was supported by Spanish MICINN projects FIS2011-24149 and FIS2009-08451, CEI BioTic UGR project 20F12.41 and Junta de Andalucia projects FQM-165/0207 and FQM219.
Publisher: AIP Publishing
Keywords: Dirac systems
Wave-packets
Fractional revivals
Graphene
URI: http://hdl.handle.net/10481/32293
ISSN: 2158-3226
Rights : Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License
Citation: Romera, E.; Torres, J.J. Characterization of a quantum phase transition in Dirac systems by means of the wavepacket dynamics. AIP Advances, 2: 042121 (2012). [http://hdl.handle.net/10481/32293]
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