Seminar: Konstantin K. Likharev
Konstantin K. Likharev
Distinguished Professor of Physics
Stony Brook University (SUNY)
Reversible Computing: Possibilities and Challenges
May 7, 2012 | 2:00pm | 1132 Harold Frank Hall
Co-presented with the Computer Engineering Department
Abstract
I
will review physics of the so-called "thermodynamic limit" on the energy
consumption at computation, and C.Bennett's idea of reversible computing,
which allows that limit to be avoided. Unfortunately, even if implemented in
hardware virtually free of static power consumption (such as Parametric
Quantron circuits), a genuinely reversible computation would require
exponentially large resources. Selective reversibility sacrifices may sharply
reduce this hardware overhead, but still leave the circuit speed and defect
tolerance relatively low. The implementation of reversible computing in CMOS
circuits, with their final static power consumption, adds additional
challenges. I believe that the future of this concept will depend on the
progress of IC patterning and 3D integration.
Biography
Konstantin
K. Likharev received the Candidate (Ph.D.) degree from the Department of
Physics of Lomonosov Moscow State University, Russia in 1969, and the
habilitation degree of Doctor of Sciences from the Higher Attestation Committee
of the U.S.S.R. in 1979. From 1969 to 1988 Dr. Likharev was a Member of
Research Staff of Moscow State University, and from 1989 to 1991 the Head of
the Laboratory of Cryoelectronics of that University. In 1991 he assumed a
Professorship at Stony Brook University (Distinguished Professor since 2002).
During his research career, Dr. Likharev worked in the fields of nonlinear
classical and dissipative quantum dynamics, and solid-state physics and
electronics, notably including superconductor electronics and nanoelectronics.
He is an author of more than 250 original publications, 75 review papers and
book chapters, 2 monographs, and several patents. Dr. Likharev is a Fellow of
the APS and IEEE.
