26 citations · 90 across the 12 of their papers we have counts for
12 papers
Scaling of Quantum Geometry Near the Non-Hermitian Topological Phase Transitions
Y R Kartik, Jhih-Shih You, H. H. Jen
The geometry of quantum states can be an indicator of criticality, yet it remains less explored under non-Hermitian topological conditions. In this work, we unveil diverse scalings…
Unconventional quantum criticality in a non-Hermitian extended Kitaev chain
S Rahul, Nilanjan Roy, Ranjith R Kumar +2
We investigate the nature of quantum criticality and topological phase transitions near the critical lines obtained for the extended Kitaev chain with next nearest neighbor hopping…
Multi-criticality and long-range effects in non-Hermitian topological models
Y R Kartik, Sujit Sarkar
Long-range effects induce some interesting behavior and considered as a gateway to understand the non-local behavior in the quantum systems. Especially, the long-range topological…
Topological phase transition between non-high symmetry critical phases and curvature function renormalization group
Ranjith R Kumar, Y R Kartik, Sujit Sarkar
The interplay between topology and criticality has been a recent interest of study in condensed matter physics. A unique topological transition between certain critical phases has…
Signatures of topological phase transition on a quantum critical line
Ranjith R Kumar, Nilanjan Roy, Y R Kartik +2
Recently topological states of matter have witnessed a new physical phenomenon where both edge modes and gapless bulk coexist at topological quantum criticality. The presence and a…
A study of topological characterization and symmetries for a quantum simulated Kitaev chain
Y R Kartik, Ranjith R Kumar, S Rahul +1
An attempt is made to quantum simulate the topological classification, such as winding number, geometric phase and symmetry properties for a quantum simulated Kitaev chain. We find…
Topological quantum phase transitions and criticality in a longer-range Kitaev chain
Y R Kartik, Ranjith R Kumar, S Rahul +2
In an attempt to theoretically investigate the quantum phase transition and criticality in topological models, we study Kitaev chain with longer-range couplings (finite number of n…
Multi-critical topological transition at quantum criticality
Ranjith R Kumar, Y R Kartik, S Rahul +1
The investigation and characterization of topological quantum phase transition between gapless phases is one of the recent interest of research in topological states of matter. We…
A Study of Berry Connection and Complex Analysis for Topological Characterization
Y R Kartik, Rahul S, Ranjith Kumar R +1
We study and present the results of Berry connection for the topological states in quantum matter. The Berry connection plays a central role in the geometric phase and topological…
Majorana Zero Modes and Bulk-Boundary Correspondence at Quantum Criticality
S Rahul, Ranjith R Kumar, Y R Kartik +1
Majorana zero modes are well studied in the gapped phases of topological systems. We investigate Majorana zero modes at the topological quantum criticality in one dimensional topol…
A Study of Curvature Theory for Different Symmetry Classes of Hamiltonian
Y R Kartik, Ranjith R Kumar, S Rahul +1
We study and present the results of curvature for different symmetry classes (BDI, AIII and A) model Hamiltonians and also present the transformation of model Hamiltonian from one…
An Interplay of Topology and Quantized Geometric Phase for two Different Symmetry-Class Hamiltonians
Rahul S, Ranjith Kumar R, Y R Kartik +2
Study of symmetry, topology and geometric phase can reveal many new and interesting results on the topological states of matter. Here we present a completely new and interesting re…