Signature of special behaviours of 1/r super(2) interaction in the quantum entanglement entropy

We study the bipartite von Neumann entropy of two particles interacting via a long-range scale-free potential V(r) ~ -g/r super(2) in three dimensions, close to the unbinding transition. The nature of the quantum phase transition changes from critical (-3/4 < g < 1/4) to first order (g < -3...

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Veröffentlicht in:	Journal of physics. A, Mathematical and theoretical Mathematical and theoretical, 2012-10, Vol.45 (42), p.1-13
Hauptverfasser:	Sadhukhan, Poulomi, Bhattacharjee, Somendra M
Format:	Artikel
Sprache:	eng
Schlagworte:	Entanglement Entropy Mathematical analysis Particles (of physics) Phase transformations Quantum mechanics Signatures Three dimensional
Online-Zugang:	Volltext
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