پديدآورندگان :
Noorinezhad Zahra z60.noori@gmail.com Bandar Anzali Branch, Islamic Azad University, Bandar Anzali, Iran/Department of Physics, Science and Research Branch, Islamic Azad University, Tehran, Iran; , Haghdoust Behnam Behnam.haghdoust@gmail.com Department of Physics, University of Guilan, Rasht, Iran; , Mahdavifar Saeed Department of Physics, University of Guilan, Rasht, Iran;
كليدواژه :
quantum cluster model , quantum phase transition , qubit , concurrence
چكيده فارسي :
For the quantum cluster interaction model, by focusing on the entanglement, we show that there is a quantum phase transition even for three-qubit systems, while we expected it just for large systems. Then we study the effect of thermal fluctuations on the amount of entanglement and show also that at finite temperature, indication of quantum critical point is seen.
