Times of Execution of the CCNOT and CCCNOT Quantum Gates in a Quantum Computer based on a Quantum Dots Technology



Document title: Times of Execution of the CCNOT and CCCNOT Quantum Gates in a Quantum Computer based on a Quantum Dots Technology
Journal: Computación y Sistemas
Database: PERIÓDICA
System number: 000456950
ISSN: 1405-5546
Authors: 1
Institutions: 1Universidad Autónoma del Estado de México, Toluca, Estado de México. México
Year:
Season: Oct-Dic
Volumen: 23
Number: 4
Pages: 1241-1247
Country: México
Language: Inglés
Document type: Artículo
Approach: Aplicado, descriptivo
English abstract It is considered a quantum computer consisting of a system of quantum dots (electrons) which are described by a Hamiltonian having rotation, inversion, and exchange symmetries. We consider exclusively the cases of both n = 3 and n = 4 quantum dots. In order to neglect their mutual Coulomb-like interactions, the electron dots are allocated very far way one of each other. In quantum dot technologies the figure of merit is the structure of the confinement potential. Thus, a realistic confinement potential of an electron dot which is composed of a very high rectangular potential well of width approximately equal to three orders of magnitude of the electron dot Compton wavelength (one nanometer) is proposed here. In order to verify the consistence of the present approach, the times of execution of the CCNOT and CCCNOT gates are calculated. It is found that in the case of a soft tunneling through the walls of the potential, the times of execution of such a gates are drastically small
Disciplines: Ciencias de la computación
Keyword: Análisis de sistemas,
Programación,
Puntos cuánticos,
Potencial de confinamiento,
Tiempo de ejecución,
Puertas cuánticas
Keyword: Systems analysis,
Programming,
Quantum dots,
Confinement potential,
Execution time,
Quantum gates
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