Abstract: A method for constructing a quantum gate for a unitary operation in photonic quantum information processing, comprises: providing two or more waveguides, calculating segment parameters for segments within a coupling region, said one or more parameters relating to propagation constants of respective waveguides, said one or more parameters being different for said first and second waveguides respectively and thereby providing detuning between said first and second waveguides to allow for unitary operation between said first and second waveguides with high fidelity in the presence of errors, then building the segments into the respective waveguides and optically coupling the waveguides at the coupling region using the segment parameters, thereby to construct a quantum logic gate for a unitary operation.

Abstract: Systems and methods evaluate navigation system capabilities. In one implementation, at least one processing device is programmed to acquire characteristics of one or more sensors included in the host vehicle; establish a testing domain, wherein the testing domain includes at least one mapped representation of a geographic region; and simulate operation of the one or more sensors relative to the testing domain. Based on the simulated operation of the one or more sensors, the at least one processing device may determine whether one or more regions exist within the geographic region where outputs of the one or more sensors are insufficient for ensuring that each navigational action implemented by the navigation system of the host vehicle will not result in an accident for which the host vehicle is at fault.

Abstract: It is an object of the disclosed technique to provide a novel method and system for shared concurrent access to a memory cell. In accordance with the disclosed technique, there is thus provided a system for shared concurrent access to a memory cell, which includes at least one shared memory cell, an evaluator and a plurality of processing agents coupled to the input of the evaluator. The evaluator is further coupled with the at least one memory cell. The evaluator is configured to evaluate an expression for performing multiple concurrent composite assignments on the at least one shared memory cell. The evaluator further allows each of the plurality of processing agents to perform concurrent composite assignments on the at least one shared memory cell. The composite assignments do not include a read operation of the at least one shared memory cell by the plurality of processing agents.

Abstract: It is an object of the disclosed technique to provide a novel method and system for shared concurrent access to a memory cell. In accordance with the disclosed technique, there is thus provided a system for shared concurrent access to a memory cell, which includes at least one shared memory cell, an evaluator and a plurality of processing agents coupled to the input of the evaluator. The evaluator is further coupled with the at least one memory cell. The evaluator is configured to evaluate an expression for performing multiple concurrent composite assignments on the at least one shared memory cell. The evaluator further allows each of the plurality of processing agents to perform concurrent composite assignments on the at least one shared memory cell. The composite assignments do not include a read operation of the at least one shared memory cell by the plurality of processing agents.

Abstract: A method and device for generating an accurate model of the position of a dental implant in an intraoral cavity, by using a novel shape transfer cap for attachment to the dental implant, the shape transfer cap having a negative depression or a hollow in its end remote from the end by which it is attached to the implant. Such a negative depression forms a positive protrusion in the impression generated of the patient's intraoral cavity with the shape transfer cap. The impression is scanned in order to obtain the computer model for preparing the dental prosthesis for attachment to said implant, including the position and orientation of the implant within the intraoral cavity. The advantage of such a positive protrusion is that it can be more accurately scanned than a depression, which would be formed in the impression if a conventionally shaped transfer cap were used.