Device for realizing quantum operation

The utility model discloses a device for realizing quantum operation, and the device comprises a vacuum cavity which comprises a vacuum window, a first optical element is arranged in the vacuum cavity, a second optical element is arranged outside the vacuum cavity, and the first optical element and the second optical element form an optical system for executing the quantum operation; the more than one first optical element and/or the more than one second optical element are/is fixedly connected with the vacuum window; the first optical element comprises a first lens closest to the particle in the optical system. According to the embodiment of the utility model, the first optical element including the first lens is arranged in the vacuum cavity, so that the working distance for executing quantum operation is shortened, and the numerical aperture of the system is improved; a second optical element is arranged outside the vacuum cavity, so that incompatibility of the optical elements in a vacuum environment is a