Abstract
AbstractThe physical properties of the unconventional complex–real transformation of eigenenergies which is manifested by the multiple degenerate plat bulk bands in the energy spectrum and the topological properties characterized by robust edge states are investigated in the square‐root non‐Hermitian topolectrical circuits. Such a flat bulk band captures all the imaginary eigenenergies of the system, which also determines its destiny as an indicator of complex–real transformation. In addition, its degeneracy is twice the number of unit cells and its possible generation mechanism has also been explored. The existence of robust topological edge states with non‐zero real energy is hinted by a strong impedance resonance peak displayed on the boundary in a modified disordered circuit system. The non‐Bloch theorem is introduced to renovate the broken bulk‐boundary correspondence confirmed by theoretical analysis and numerical calculations. Finally, the entire phase diagram of the system is presented to perfectly show all the intriguing physics. This work further enriches the study of physical characteristics and other exotic topological phenomena on an accessible electronic circuit platform.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
