A method for quantum computing uses entangled resource states which include in particular a class of highly entangled multi-particle states. The requirements testing system generates test artifacts from the requirement statements. The base further comprises an elastic body made of a plastic material having a hardness smaller than the hardness of the plastic material of which the main body is made. The method comprises varying the thickness of the last optical element, changing the refractive index of the space between the exit surface and the image plane by introducing or removing an immersion medium, and preferably axial displacement of the last optical element in order to set a suitable working distance.