title: Robust signatures detection of Majorana fermions in superconducting iron chains.
abstract: We theoretically propose an optical means to detect Majorana fermions in superconducting iron (Fe) chains with a hybrid quantum dot-nanomechanical resonator system driven by two-tone fields, which is very different from the current tunneling spectroscopy experiments with electrical means. Based on the scheme, the phenomenon of Majorana modes induced transparency is demonstrated and a straightforward method to determine the quantum dot-Majorana fermions coupling strength is also presented. We further investigate the role of the nanomechanical resonator, and the resonator behaving as a phonon cavity enhances the exciton resonance spectrum, which is robust for detecting of Majorana fermions. The coherent optical spectrum affords a potential supplement to detecte Majorana fermions and supports Majorana fermions-based topological quantum computation in superconducting iron chains.
authors.affiliation: School of Science, Anhui University of Science and Technology, Huainan Anhui, 232001, China.
authors.forename: Hua-Jun
authors.initials: HJ
authors.lastname: Chen
authors.affiliation: School of Science, Anhui University of Science and Technology, Huainan Anhui, 232001, China.
authors.forename: Xian-Wen
authors.initials: XW
authors.lastname: Fang
authors.affiliation: School of Science, Anhui University of Science and Technology, Huainan Anhui, 232001, China.
authors.forename: Chang-Zhao
authors.initials: CZ
authors.lastname: Chen
authors.affiliation: School of Science, Anhui University of Science and Technology, Huainan Anhui, 232001, China.
authors.forename: Yang
authors.initials: Y
authors.lastname: Li
authors.affiliation: School of Science, Anhui University of Science and Technology, Huainan Anhui, 232001, China.
authors.forename: Xu-Dong
authors.initials: XD
authors.lastname: Tang