Difference between revisions of "Mustafa Altun"
Line 58: | Line 58: | ||
{|align="center" | {|align="center" | ||
| | | | ||
[[Image:2-switch.png| | [[Image:2-switch.png|center|thumb|none|400px|Shannon's model: '''two-terminal switches'''. Each switch is either ON (closed) or OFF (open). A Boolean function is implemented in terms of connectivity across a network of switches, arranged in a series/parallel configuration. This network implements the function <math>f = x_1 x_2 x_3 + x_1 x _2 x_5 x_6 + x_4 x_5 x_2 x_3 + x_4 | ||
x_5 x_6</math>.]] | x_5 x_6</math>.]] | ||
|| | || | ||
|| [[Image:4-switch.png| | || [[Image:4-switch.png|center|thumb|none|375px|Our model: '''four-terminal switches'''. Each switch is either mutually connected to its neighbors (ON) or disconnected (OFF). A Boolean function is implemented in terms of connectivity between the top and bottom plates. This network implements the same function, <math>f = x_1 x_2 x_3 + x_1 x _2 x_5 x_6 + x_4 x_5 x_2 x_3 + x_4 | ||
x_5 x_6</math>.]] | x_5 x_6</math>.]] | ||
|} | |} |
Latest revision as of 11:39, 4 August 2014
I received my Ph.D. degree in electrical engineering with a Ph.D. minor in mathematics at the University of Minnesota, Twin Cities Campus in 2012. My Ph.D. studies include research on emerging computing models, reliability of nanoscale circuits, and combinatorics.
Currently I am an assistant professor at Istanbul Technical University (ITU). For up-to-date information please check my group's website at ITU.
Research at the U
As current CMOS-based technology is approaching its anticipated limits, research is shifting to novel forms of nanoscale technologies including molecular-scale self-assembled systems. Unlike conventional CMOS that can be patterned in complex ways with lithography, self-assembled nanoscale systems generally consist of regular structures. Logical functions are achieved with crossbar-type switches. Our model, a network of four- terminal switches, corresponds to this type of switch in a variety of emerging technologies, including nanowire crossbar arrays and magnetic switch-based structures.
Switching Networks
In his seminal Master's Thesis, Claude Shannon made the connection between Boolean algebra and switching circuits. He considered two-terminal switches corresponding to electromagnetic relays. A Boolean function can be implemented in terms of connectivity across a network of switches, often arranged in a series/parallel configuration. We have developed a method for synthesizing Boolean functions with networks of four-terminal switches, arranged in rectangular lattices.
|
|
Percolation for Robust Computation
We have devised a novel framework for digital computation with lattices of nanoscale switches with high defect rates, based on the mathematical phenomenon of percolation. With random connectivity, percolation gives rise to a sharp non-linearity in the probability of global connectivity as a function of the probability of local connectivity. This phenomenon is exploited to compute Boolean functions robustly, in the presence of defects.
|
|

Contact Information
- Email Address: altu0006@umn.edu
- Cell Phone: 612-978-2955
- Address: 200 Union St. S.E., Room 4-136, Minneapolis, MN 55455