Аннотация:Altermagnetism became very popular because of unique features, namely coupling between magnetic proper ties and momentum of itinerant electrons. The particular model of the altermagnetic system of our interest has already been studied in recent publications in a different context: Phys.Rev.B108, L140408 (2023). Here, we study the scattering process of an itinerant electron from the altermagnetic material on the electron localized in a GaAs quantum dot doped on the altermagnetic material. We found a spatially inhomogeneous distribution of quantum entanglement in the postscattering state. An interesting observation is the spatially anisotropic distribution of concurrence which depends on the values of the altermagnetic spin-orbit interaction constant. We also studied Rényi entropy and the effect of disorder in the system leading to randomness in the spin-orbit constant. Our main finding is that, due to the unique properties of an altermagnetic system, tuning the applied external magnetic field allows tailoring of the desired entangled state. Thus the scattering process, in essence, mimics the Hadamard-CNOT gate transformation, converting the initial disentangled state into the entangled state of Bell’s state. In particular, we achieved more than 70% fidelity between the postscattering and Bell’s states.
