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» Complexity Limitations on Quantum Computation
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ENTCS
2007
108views more  ENTCS 2007»
13 years 7 months ago
Simulating and Compiling Code for the Sequential Quantum Random Access Machine
We present the SQRAM architecture for quantum computing, which is based on Knill’s QRAM model. We detail a suitable instruction set, which implements a universal set of quantum ...
Rajagopal Nagarajan, Nikolaos Papanikolaou, David ...
ICALP
2005
Springer
14 years 1 months ago
All Quantum Adversary Methods Are Equivalent
Abstract: The quantum adversary method is one of the most versatile lower-bound methods for quantum algorithms. We show that all known variants of this method are equivalent: spect...
Robert Spalek, Mario Szegedy
SIAMCOMP
2002
153views more  SIAMCOMP 2002»
13 years 7 months ago
A Decision Procedure for Unitary Linear Quantum Cellular Automata
Linear quantum cellular automata were introduced recently as one of the models of quantum computing. A basic postulate of quantum mechanics imposes a strong constraint on any quan...
Christoph Dürr, Miklos Santha
BIOSYSTEMS
2007
95views more  BIOSYSTEMS 2007»
13 years 7 months ago
Physical limits of computation and emergence of life
The computational process is based on the activity linking mathematical equations to a materialized physical world. It consumes energy which lower limit is defined by the set of ...
Abir U. Igamberdiev
DAGSTUHL
2006
13 years 9 months ago
Semidefinite programming characterization and spectral adversary method for quantum complexity with noncommuting unitary queries
Generalizing earlier work characterizing the quantum query complexity of computing a function of an unknown classical "black box" function drawn from some set of such bl...
Howard Barnum