Quantum theory of dissipative topological systems
| Autor: | Pei Yun Yang, Wei-Min Zhang, Yu Wei Huang |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Physics
Superconductivity 02 engineering and technology 021001 nanoscience & nanotechnology Topology 01 natural sciences MAJORANA Quantum mechanics Topological insulator Hybrid system 0103 physical sciences Thermal Master equation Dissipative system 010306 general physics 0210 nano-technology Wave function |
| Zdroj: | Physical Review B. 102 |
| ISSN: | 2469-9969 2469-9950 |
| DOI: | 10.1103/physrevb.102.165116 |
| Popis: | We develop a quantum theory for topological systems incorporating dissipations, noises, and thermal effects with strong non-Markovian dynamics, while other approaches in the literature may not be applicable. We derive the exact master equation and transient quantum transport for the study of dissipative topological systems, mainly focusing on noninteracting topological insulators and topological superconductors. The resulting exact master equation is also applicable to systems initially entangled with environments. In this theory, dissipations and topological states can be related to each other through spectral densities which tie up the reservoir spectra and topological-state wave functions in the system-reservoir couplings when either the system or environment is a topological system. We also apply the theory to study quantized Majorana conductance in superconductor-semiconductor hybrid systems incorporating different dissipations, noises, and thermal effects. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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