2 research outputs found
Skyrmion Logic System for Large-Scale Reversible Computation
Computational reversibility is necessary for quantum computation and inspires
the development of computing systems in which information carriers are
conserved as they flow through a circuit. While conservative logic provides an
exciting vision for reversible computing with no energy dissipation, the large
dimensions of information carriers in previous realizations detract from the
system efficiency, and nanoscale conservative logic remains elusive. We
therefore propose a non-volatile reversible computing system in which the
information carriers are magnetic skyrmions, topologically-stable magnetic
whirls. These nanoscale quasiparticles interact with one another via the
spin-Hall and skyrmion-Hall effects as they propagate through ferromagnetic
nanowires structured to form cascaded conservative logic gates. These logic
gates can be directly cascaded in large-scale systems that perform complex
logic functions, with signal integrity provided by clocked synchronization
structures. The feasibility of the proposed system is demonstrated through
micromagnetic simulations of Boolean logic gates, a Fredkin gate, and a
cascaded full adder. As skyrmions can be transported in a pipelined and
non-volatile manner at room temperature without the motion of any physical
particles, this skyrmion logic system has the potential to deliver scalable
high-speed low-power reversible Boolean and quantum computing.Comment: 24 pages, 7 figures, 3 table
ANALYTICAL BAND STRUCTURE AND TRANSPORT STUDY OF STRAINED GRAPHENE AND SILICENE SYSTEMS
Master'sMASTER OF ENGINEERING (CDE