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We propose a three-terminal structure to probe robust signatures of Majoranazero modes. This structure consists of a quantum dot coupled to the normalmetal, s-wave superconducting and Majorana Y-junction leads. The zero-biasdifferential conductance at zero temperature of the normal-metal lead peaks at$2e^{2}/h$, which will be deflected after Majorana braiding. This quantizedconductance can entirely arise from the Majorana-induced crossed Andreevreflection, protected by the energy gap of the superconducting lead. We findthat the effect of thermal broadening is significantly suppressed when the dotis on resonance. In the case that the energy level of the quantum dot is muchlarger than the superconducting gap, tunneling processes are dominated byMajorana-induced crossed Andreev reflection. Particularly, a novel kind ofcrossed Andreev reflection equivalent to the splitting of charge quanta $3e$occurs after Majorana braiding.

Probing Robust Majorana Signatures by Crossed Andreev Reflection with a Quantum Dot