Abstract: Described is a scalable quantum computer that includes at least two classical to quantum interface devices, with each being connected to a distinct quantum processing unit (QPU). An Einstein-Podolsky-Rosen pair generator (EPRPG) is included for generating an entangled Einstein-Podolsky-Rosen pair that is sent to the QPUs. Each QPU is quantumly connected with the EPRPG and is configured to receive a mobile qubit from the EPRPG and perform a sequence of operations such that the mobile qubit interacts with a source qubit when a teleportation algorithm is initiated, leaving a second mobile qubit in the original quantum state of the source qubit.

Abstract: An artificial impedance structure and a method for manufacturing same. The structure contains a dielectric layer having generally opposed first and second surfaces, a conductive layer disposed on the first surface, and a plurality of conductive structures disposed on the second surface to provide a preselected impedance profile along the second surface.

Abstract: A spin coherent, single photon detector has a body of semiconductor material with a quantum well region formed in barrier material in the body. The body has a first electrode forming an isolation electrode for defining, when negatively energized, an extent of the quantum well in the body and a second electrode positioned above a location where an electrostatic quantum dot is defined in said quantum well when positively energized. The quantum well occurs in three layers of material: a central quantum well layer and two outer quantum well layers, the two outer quantum well layers having a relatively low conduction band minimum and the barrier having a relatively high conduction band minimum while the central quantum well layer having a conduction band minimum between the relatively high and relatively low conduction band minimums.

Abstract: A spin coherent, single photon detector has a body of semiconductor material with a quantum well region formed in barrier material in the body. The body has first and second electrodes formed thereon, the first electrode forming an isolation electrode for defining, when negatively energized, an extent of the quantum well in the body and the second electrode being positioned above a location where an electrostatic quantum dot is defined in said quantum well in response to positive energization of the second electrode.

Abstract: A method for guiding waves over objects, a method for improving a performance of an antenna, and a method for improving a performance of a radar are disclosed. The methods disclosed teach how an impedance structure can be used to guide waves over objects.