Volume 97, Number 2, January 2012
|Number of page(s)||5|
|Published online||19 January 2012|
Entropic uncertainty and the quantum phase transition in the Dicke model
Departamento de Física Atómica, Molecular y Nuclear and Instituto Carlos I de Física Teórica y Computacional, Universidad de Granada - Fuentenueva s/n, 18071 Granada, Spain, EU
2 Departamento de Matemática Aplicada, Universidad de Granada - Fuentenueva s/n, 18071 Granada, Spain, EU
3 Department of Theoretical Physics, University of Debrecen - H-4010 Debrecen, Hungary, EU
Accepted: 7 December 2011
We show that the description of the quantum phase transition in terms of the entropic uncertainty relation turns out to be more suitable than in terms of the standard variance-based uncertainty relation. The entropic uncertainty relation detects the quantum phase transition in the Dicke model and it provides a correct description of the quantum fluctuations or quantum uncertainty of the system.
PACS: 05.30.Rt – Quantum phase transitions / 42.50.Lc – Quantum fluctuations, quantum noise, and quantum jumps / 64.70.Tg – Quantum phase transitions
© EPLA, 2012
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.