activity
19972005
most citedExponential algorithmic speedup by quantum walk

836 citations · 837 across the 2 of their papers we have counts for

collaborators

10 papers

quant-ph20051 cited

Classical and quantum fingerprinting with shared randomness and one-sided error

Rolf T. Horn, A. J. Scott, Jonathan Walgate +3

Within the simultaneous message passing model of communication complexity, under a public-coin assumption, we derive the minimum achievable worst-case error probability of a classi…

quant-ph2002836 cited

Exponential algorithmic speedup by quantum walk

Andrew M. Childs, Richard Cleve, Enrico Deotto +3

We construct an oracular (i.e., black box) problem that can be solved exponentially faster on a quantum computer than on a classical computer. The quantum algorithm is based on a c…

quant-ph2001

A quantum Goldreich-Levin theorem with cryptographic applications

Mark Adcock, Richard Cleve

We investigate the Goldreich-Levin Theorem in the context of quantum information. This result is a reduction from the computational problem of inverting a one-way function to the p…

quant-ph2000

Sharp Quantum vs. Classical Query Complexity Separations

J. Niel de Beaudrap, Richard Cleve, John Watrous

We obtain the strongest separation between quantum and classical query complexity known to date -- specifically, we define a black-box problem that requires exponentially many quer…

quant-ph2000

Fast parallel circuits for the quantum Fourier transform

Richard Cleve, John Watrous

We give new bounds on the circuit complexity of the quantum Fourier transform (QFT). We give an upper bound of O(log n + log log (1/epsilon)) on the circuit depth for computing an…

quant-ph1999

The query complexity of order-finding

Richard Cleve

We consider the problem where P is an unknown permutation on {0,1,...,2^n - 1}, y is an element of {0,1,...,2^n - 1}, and the goal is to determine the minimum r > 0 such that P^r(y…