Title :
A quantum-dot cellular automata shift register
Author :
Kummamura, R. ; Orlov, A.O. ; Timler, J.P. ; Ramasubramaniam, R. ; Lent, C.S. ; Bernstein, Gary H. ; Snider, G.L.
Author_Institution :
Dept. of Electr. Eng., Notre Dame Univ., IN, USA
Abstract :
Presents a more advanced device in the family of clocked QCA systems - a two cell shift register. The device consists of two capacitively coupled QCA latches The QCA latch consists of three micron-sized aluminum islands, or dots separated by tunnel junctions. Multiple tunnel junctions are used between dots to increase the charge retention time of the latches. Two single-electron electrometers measure the state of the shift register.
Keywords :
cellular arrays; cellular automata; quantum gates; semiconductor quantum dots; shift registers; capacitively coupled QCA latches; charge retention time; clocked QCA systems; micron-sized islands; quantum-dot cellular automata; single-electron electrometers; tunnel junctions; two cell shift register; Clocks; Electrons; Latches; Pipeline processing; Quantum cellular automata; Quantum computing; Quantum dots; Shift registers; Temperature; Testing;
Conference_Titel :
Device Research Conference, 2001
Conference_Location :
Notre Dame, IN, USA
Print_ISBN :
0-7803-7014-7
DOI :
10.1109/DRC.2001.937893
