COCO
14 years 1 months ago
2004 Springer 
Abstract: Although a quantum state requires exponentially many classical bits to describe, the laws of quantum mechanics impose severe restrictions on how that state can be accesse...
COCO
14 years 3 months ago
2004 Springer
We investigate coin-flipping protocols for multiple parties in a quantum broadcast setting: • We propose and motivate a definition for quantum broadcast. Our model of quantum ...
COCO
14 years 1 months ago
2004 Springer 
We initiate the study of the computational complexity of the covering radius problem for point lattices, and approximation versions of the problem for both lattices and linear cod...
COCO
14 years 3 months ago
2004 Springer
We prove a parameterized analog of Schaefer’s Dichotomy Theorem: we show that for every finite boolean constraint family F, deciding whether a formula containing constraints fr...
COCO
14 years 3 months ago
2004 Springer 
We prove a very general lower bound technique for quantum and randomized query complexity, that is easy to prove as well as to apply. To achieve this, we introduce the use of Kolm...
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Algorithms