Decoherence of interacting Majorana modes
| Autor: | Ng, H. T. |
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| Rok vydání: | 2014 |
| Předmět: | |
| Zdroj: | Scientific Reports 5:12530 (2015) |
| Druh dokumentu: | Working Paper |
| Popis: | We study the decoherence of Majorana modes of a fermion chain, where the fermions interact with their nearest neighbours. We investigate the effect of dissipation and dephasing on the Majorana modes of a fermionic chain. The dissipative and dephasing noises induce the non-parity- and parity-preserving transitions between the eigenstates of the system, respectively. Therefore, these two types of noises lead to the different decoherence mechanisms. In each type of noise, we discuss the low- and high-frequency regimes to describe the different environments. We numerically calculate the dissipation and dephasing rates in the presence of long-range interactions. We find that the decoherence rate of interacting Majorana modes is different to that of non-interacting modes. We show the examples that the long-range interactions can reduce the decoherence rate. It is advantageous to the potential applications of quantum information processing. Comment: 11 pages, 14 figures |
| Databáze: | arXiv |
| Externí odkaz: |
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