Re-entrant phase transitions in non-commutative quantum mechanics. (January 2016)

• Record Type: Journal Article
• Authors: Panella, Orlando; Roy, Pinaki
• Is Part Of: Journal of physics. Volume 670(2016)
• Publication Date: 2016-01
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/670/1/012040
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: We discuss the (2+1)-dimensional Dirac oscillator in a magnetic field in non commutative quantum mechanics. The system is known to be characterised by a left right- chiral phase transition in ordinary Quantum mechanics. We show that the momentum noncommutativity shifts the know phase transition while the space non commutativity introduces a new right-left chiral quantum phase transition giving rise to the intriguing phenomenon of re-entrant phase transition observed in condensed matter as well as in black hole physics.