Patent ID: 8987703
Filing Date: 2015-03-24
Classification: G06N,H01L

Abstract:
1. An apparatus comprising: a substrate having a planar top surface; a sequence of crystalline semiconductor layers being located on the planar surface and having a two-dimensional quantum well therein; a first set of electrodes being located over the sequence, bordering opposite sides of a lateral region thereof, and being controllable to vary a width of a non-depleted portion of the quantum well along the top surface; a second set of electrodes being located over the sequence, bordering first and second channels between the lateral region and first and second adjacent lateral areas of the sequence, and being controllable to vary widths of non-depleted segments of the quantum well; and wherein the electrodes are located such that any straight line connecting the first and second lateral areas via the channels either passes between one of the electrodes and the substrate or is misaligned to an effective [1