Abstract: Techniques regarding tiling a CR gate configuration to one or more lattices characterizing quantum circuit topologies are provided. For example, one or more embodiments described herein can comprise a system, which can comprise a memory that can store computer executable components. The system can also comprise a processor, operably coupled to the memory, and that can execute the computer executable components stored in the memory. The computer executable components can comprise a tiling component that can generate a cross-resonance gate configuration that delineates a control qubit assignment and a target qubit assignment in conjunction with a frequency allocation onto a lattice characterizing a quantum circuit topology.

Abstract: An expansion joint includes a pair of tubular fittings joined together by a bellows for accommodating differential movement therebetween. The fittings include balls at respective distal ends thereof which engage complementary sockets fixedly joined to opposite ends of the bellows. The respective ball and sockets additionally accommodate pivotal and rotary movement. The bellows allows pressure and spring forces to engage the sockets against their respective balls for continuously seating the balls in the sockets during operation and maintaining effective seals against leakage.

Abstract: The syringe is comprised of an external cylindrical body (1) and a suction and ejection piston (2) displaceable within said body, the piston including at its internal end the corresponding seal (3). According to the invention, said seal is held at the extremity of the piston by means of one of a plurality of arms (4) hinged at said end of the piston, said arm or arms traversing the side wall of the seal to retain the latter. The arms have a sharpened free end (6) and a cutting front edge (7), so that, during the advance movement of the piston during the ejection phase, the wall of the external cylindrical body is cut, no cut being done during the suction displacement. The syringe is disposable and not reusable after its first and single use.

Abstract: A protector for self-retractile hypodermic needles, the purpose of which is to hide and protect the needle used in injections, both before and after its use. Its basic features are a tubular body opened on both ends and cylindrical, at least inside, including an inner ring-shaped projection with minimum width and thickness, which holds the needle-holder. The body includes as well an expansion spring placed between the end projection of the needle-holder provided to be held against the inner projection of the tubular body, and the strangled front end of the latter. The spring pushes the needle-holder in, hiding the needle, once the syringe has been used for an injection. The tubular body is provided with elongated side windows to simultaneously hold both the tubular body and the syringe during use.