TWO-WIRE SYSTEM CNOT GATE CONSISTING OF EIGHT QUANTUM DOTS

摘要

PPROBLEM TO BE SOLVED: To provide a novel CNOS (Controlled NOT) gate or the like for realizing a quantum computer. PSOLUTION: A first layer (2), a second layer (3) and a third layer (4) are provided. The first layer has a first quantum dot (QSB1/SB:5), a first input line (aSB0/SB:6), a second quantum dot (QSB2/SB:7), and a first output line (a'SB0/SB:8). The second layer has a third quantum dot (QSB3/SB:9), a second input line (aSB1/SB:10), a fourth quantum dot (QSB4/SB:11), and a second output line (a'SB1/SB:12). The third layer has fifth to eighth quantum dots (QSB5/SB:13; QSB6/SB:14, QSB7/SB:15, QSB8/SB:16), a third input line (bSB0/SB:17), a third output line (b'SB0/SB:18), an output line (b'SB1/SB:19) and a fourth input line (bSB1/SB:20). A CNOT gate which controls flow of electron is formed by using Coulomb rebound in quantum dot. PCOPYRIGHT: (C)2005,JPO&NCIPI