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ISVLSI
2002
IEEE
129views VLSI» more  ISVLSI 2002»
15 years 11 months ago
Accelerating Retiming Under the Coupled-Edge Timing Model
Retiming has been shown to be a powerful technique for improving the performance of synchronous circuits. However, even though retiming algorithms of polynomial time complexity ha...
Ingmar Neumann, Kolja Sulimma, Wolfgang Kunz
FOCS
2000
IEEE
15 years 11 months ago
Fast parallel circuits for the quantum Fourier transform
We give new bounds on the circuit complexity of the quantum Fourier transform (QFT). We give an upper bound of Ç´ÐÓ Ò · ÐÓ ÐÓ ´½ µµ on the circuit depth for computin...
Richard Cleve, John Watrous
APAL
2007
131views more  APAL 2007»
15 years 6 months ago
Bounded fixed-parameter tractability and reducibility
We study a refined framwork of parameterized complexity theory where the parameter dependendence of fixed-parameter tractable algorithms is not arbitrary, but restricted by a fu...
Rod Downey, Jörg Flum, Martin Grohe, Mark Wey...
ECCC
2008
98views more  ECCC 2008»
15 years 6 months ago
Closed Timelike Curves Make Quantum and Classical Computing Equivalent
While closed timelike curves (CTCs) are not known to exist, studying their consequences has led to nontrivial insights in general relativity, quantum information, and other areas....
Scott Aaronson, John Watrous
AUTOMATICA
2006
142views more  AUTOMATICA 2006»
15 years 6 months ago
Stability regions in the parameter space: D-decomposition revisited
The challenging problem in linear control theory is to describe the total set of parameters (controller coefficients or plant characteristics) which provide stability of a system....
Elena N. Gryazina, Boris T. Polyak