Zobrazeno 1 - 10
of 285
pro vyhledávání: '"Sarkar, Sujit"'
Publikováno v:
Sci Rep 13, 12121 (2023)
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 parameters and non-Hermitian chemical potential. We surprisingly find
Externí odkaz:
http://arxiv.org/abs/2307.11996
Autor:
Kartik, Y R, Sarkar, Sujit
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 models became a platform for the realization of new quasi-particles, w
Externí odkaz:
http://arxiv.org/abs/2211.05358
Publikováno v:
New J. Phys. 25, 083027 (2023)
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 been observed as a consequence of the edge modes living at criticaliti
Externí odkaz:
http://arxiv.org/abs/2211.03320
Autor:
Kumar, Ranjith R, Sarkar, Sujit
An attempt is made to find different emergent quantum phases for interacting topological state of quantum matter. Our study is based on the quantum field theoretical renormalization group (RG) calculations. The behaviour of the RG flow lines gives th
Externí odkaz:
http://arxiv.org/abs/2112.03627
Publikováno v:
Phys. Rev. B 107, 205114 (2023)
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 absence of edge modes on a critical line can lead to an unusual class o
Externí odkaz:
http://arxiv.org/abs/2112.02485
Autor:
Kumar, Ranjith R, Sarkar, Sujit
The physics of quantum Ising model (qIm) plays an important role in quantum many body system. We study and present the results of qIm and longer range quantum Ising model (lqIm) in presence of strong correlation. We do the quantum field theoretical r
Externí odkaz:
http://arxiv.org/abs/2111.04369
Autor:
Rahul, S, Sarkar, Sujit
An Attempt is made to study the non-Hermitian effect on the topological quantum criticality and also in the physics of Majroana zero mode (MZMs). In this work, the effects and modifications done by the non-Hermitian factor $\gamma$ on the topological
Externí odkaz:
http://arxiv.org/abs/2109.10519
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, {\alpha} (ratio between the spin-orbit coupling and magnetic field)
Externí odkaz:
http://arxiv.org/abs/2009.04673
Publikováno v:
Phys. Rev. B 104, 075113 (2021)
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 neighbors) as well as truly long-range couplings (infinite number of ne
Externí odkaz:
http://arxiv.org/abs/2009.04111
Publikováno v:
Scientific Reports, 11, 1004 (2021)
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 consider transverse field Ising model with three spin interaction in o
Externí odkaz:
http://arxiv.org/abs/2008.08019