scholarly journals Finite Size Effects in Topological Quantum Phase Transitions

2020 ◽  
pp. 289-307
Author(s):  
Mucio A. Continentino ◽  
Sabrina Rufo ◽  
Griffith M. Rufo
Keyword(s):  
Phase Transitions ◽  
Size Effects ◽  
Quantum Phase Transitions ◽  
Finite Size ◽  
Quantum Phase ◽  
Finite Size Effects ◽  
Topological Quantum

scholarly journals Quasiparticles as detector of topological quantum phase transitions

2020 ◽  
Vol 2 (4) ◽  
Author(s):  
Sourav Manna ◽  
N. S. Srivatsa ◽  
Julia Wildeboer ◽  
Anne E. B. Nielsen
Keyword(s):  
Phase Transitions ◽  
Quantum Phase Transitions ◽  
Quantum Phase ◽  
Topological Quantum

Probing topological quantum phase transitions via photonic spin Hall effects in spin-orbit coupled 2D quantum materials

2021 ◽  
Author(s):  
Muzamil Shah
Keyword(s):  
Phase Transitions ◽  
Hall Effect ◽  
Extreme Values ◽  
Optical Transition ◽  
Quantum Phase Transitions ◽  
Measurement Techniques ◽  
Quantum Phase ◽  
Spin Hall Effect ◽  
Radiation Fields ◽  
Topological Quantum

Abstract Topological photonics is an emerging field in photonics in which various topological and geometrical ideas are used to manipulate and control the behavior of light photons. The interplay between topological matter and the spin degree of freedom of photons provides new opportunities for achieving spin-based photonics applications. In this paper, the photonic spin Hall effect (PSHE) of reflected light from the surface of the topological silicene quantum systems subjected to external electric and radiation fields in the terahertz regime is theoretically investigated. By tuning the external electric and the applied laser fields, we can drive the silicenic system through different topological quantum phase transitions. We demonstrate that the in-plane and transverse spatial spin dependent shifts exhibit extreme values near Brewster’s angles and away from the optical transition frequencies. We reveal that the photonic spin Hall shifts are sensitive to the spin and valley indices as well as to the number of closed gaps. By incorporating the quantum weak value measurement techniques, the photonic spin Hall effect greatly impact the research in spinoptics, spintronics, and valleytronics.

Topological quantum phase transitions on the breathing kagomé lattice

2021 ◽  
Vol 33 (47) ◽  
pp. 475504
Author(s):  
Chao Yu ◽  
Ai-Lei He ◽  
Xiao-Ping Liu ◽  
Yi-Fei Wang
Keyword(s):  
Phase Transitions ◽  
Quantum Phase Transitions ◽  
Quantum Phase ◽  
Kagome Lattice ◽  
Kagomé Lattice ◽  
Topological Quantum
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