Porta lógica de Fredkin e C-NOT externamente clássica baseada em dinâmica quântica reversível composta por pontos quânticos de um nível, respectivo somador completo e método de operação do mesmo
Omar, Y.
; Costa, A. T.
; Bose, S.
; Pezzutto, M.
; Moutinho, J. M.
Instituto de Telecomunicações, Instituto Superior Técnico
Invention Title: Externally classical Fredkin and C-NOT gate based on reversible quantum dynamics comprising single-level quantum dots, respective full adder and operation method thereof
Patent Nr.: PT116602
Type: Patent
Regional Coverage: National
Grant Status: Granted
Priority Date: 24-07-2020
Filing Date: 24-07-2020
Granting Date: 23-01-2024
Country: Portugal
External Links:
Tech Offer: Full-adder based on coherent quantum dynamics for energy efficient computing
Abstract
Externally classical Fredkin gate device and operation method thereof, based on reversible quantum dynamics comprising: a control bit quantum dot (QDO), a first target bit quantum dot (QD1) and a second target bit quantum dot (QD2), and a Circuit configured for: applying a voltage to a first control contact (Bl) for preventing tunnel coupling between the control bit quantum dot and the first target bit quantum dot; applying a voltage to a second control contact (B2) for enabling tunnel coupling between the first target bit quantum dot and the second target bit quantum dot; applying voltage to biasing contacts (El, E2) for matching energy leveis and enable tunnelling between the first and the second target bit quantum dot when and only when the control bit is in the zero-charge State. The device comprises output contacts (QPCO, QPC1, QPC2). Also, an externally classical full adder with energetic advantage to existing devices.
