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» The Quantum Communication Complexity of Sampling
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STOC
2006
ACM
149views Algorithms» more  STOC 2006»
14 years 6 months ago
Bounded-error quantum state identification and exponential separations in communication complexity
We consider the problem of bounded-error quantum state identification: given either state 0 or state 1, we are required to output `0', `1' or `?' ("don't ...
Dmitry Gavinsky, Julia Kempe, Oded Regev, Ronald d...
CORR
2004
Springer
114views Education» more  CORR 2004»
13 years 5 months ago
Quantum Communication Cannot Simulate a Public Coin
We study the simultaneous message passing model of communication complexity. Building on the quantum fingerprinting protocol of Buhrman et al., Yao recently showed that a large cl...
Dmitry Gavinsky, Julia Kempe, Ronald de Wolf
ALGORITHMICA
2010
92views more  ALGORITHMICA 2010»
13 years 5 months ago
Quantum Separation of Local Search and Fixed Point Computation
In this paper, we give a lower bound of (n(d-1)/2 ) on the quantum query complexity for finding a fixed point of a discrete Brouwer function over grid [1 : n]d . Our bound is near...
Xi Chen, Xiaoming Sun, Shang-Hua Teng
CORR
2010
Springer
225views Education» more  CORR 2010»
13 years 5 months ago
Analysis of the Security of BB84 by Model Checking
Quantum Cryptography or Quantum key distribution (QKD) is a technique that allows the secure distribution of a bit string, used as key in cryptographic protocols. When it was note...
Mohamed Elboukhari, Mostafa Azizi, Abdelmalek Aziz...
STOC
2007
ACM
84views Algorithms» more  STOC 2007»
14 years 6 months ago
Lower bounds in communication complexity based on factorization norms
We introduce a new method to derive lower bounds on randomized and quantum communication complexity. Our method is based on factorization norms, a notion from Banach Space theory....
Nati Linial, Adi Shraibman