Open AccessEmergence of parity time symmetric quantum critical phenomena
Author(s) -
Ranjith R Kumar,
Rahul Sinha,
Y R Kartik,
Sujit Sarkar
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2038/1/012016
Subject(s) - asymptotic freedom , physics , renormalization group , parity (physics) , scaling , quantum , quantum mechanics , quantum phase transition , symmetry (geometry) , statistical physics , mathematical physics , mathematics , geometry , quantum chromodynamics
Emergence of different interesting and insightful phenomena at different length scale is the heart of quantum many-body system. We show that the physics of parity-time (PT) symmetry is one new addition to them. We show explicitly that the emergence of different topological excitation at different length scale for the PT symmetry system through the analysis of renormalization group (RG) flow lines. We observe that the higher order RG process favour the emergence of asymptotic freedom like behaviour and also show the effect of strong correlation on the emergent phases. Interestingly, the asymptotic freedom like behaviour is favoured by PT symmetry phase of the system. Moreover, we also derive the scaling relation for the couplings in RG equations. These findings can be tested experimentally in ultracold atoms.