Kumar Ranjith R, Sarkar Sujit
Theoretical Sciences Division, Poornaprajna Institute of Scientific Research, Bidalur, Bengaluru, 562164, India.
Graduate Studies, Manipal Academy of Higher Education, Madhava Nagar, Manipal, 576104, India.
Sci Rep. 2022 Jul 13;12(1):11951. doi: 10.1038/s41598-022-15834-y.
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 give the emergence of different quantum phases for non-interacting and interacting topological state of quantum matter. We show explicitly electron-electron interaction can turn a topologically trivial phase into a topologically nontrivial one and also topologically nontrivial phase to topologically trivial phase. We show that physics of emergence goes beyond the quantum Berezinskii-Kosterlitz-Thouless transition. We also present the analysis of fixed point and show the behaviour of fixed point changes in presence and absence of interaction. This work provides a new perspective not only from the topological state of interacting quantum matter and but also for the correlated quantum many -body physics.
人们试图为相互作用的量子物质拓扑态找到不同的涌现量子相。我们的研究基于量子场论重整化群（RG）计算。RG流线的行为给出了非相互作用和相互作用的量子物质拓扑态不同量子相的涌现情况。我们明确表明，电子 - 电子相互作用可以将拓扑平凡相转变为拓扑非平凡相，也可以将拓扑非平凡相转变为拓扑平凡相。我们表明，涌现的物理现象超越了量子贝雷津斯基 - 科斯特利茨 - Thouless 转变。我们还给出了不动点分析，并展示了在有相互作用和无相互作用情况下不动点行为的变化。这项工作不仅从相互作用量子物质的拓扑态，而且为相关量子多体物理提供了一个新的视角。
