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CORR
2004
Springer
94views Education» more  CORR 2004»
13 years 10 months ago
Quantum Computing, Postselection, and Probabilistic Polynomial-Time
I study the class of problems efficiently solvable by a quantum computer, given the ability to "postselect" on the outcomes of measurements. I prove that this class coin...
Scott Aaronson
CORR
2004
Springer
114views Education» more  CORR 2004»
13 years 10 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
CORR
2004
Springer
166views Education» more  CORR 2004»
13 years 10 months ago
A Process Algebraic Approach to Concurrent and Distributed Quantum Computation: Operational Semantics
Full formal descriptions of algorithms making use of quantum principles must take into account both quantum and classical computing components and assemble them so that they commu...
Marie Lalire, Philippe Jorrand
CCR
2004
102views more  CCR 2004»
13 years 10 months ago
Infrastructure for the quantum internet
A team of researchers from the Massachusetts Institute of Technology (MIT) and Northwestern University (NU) is developing a system for long-distance, high-fidelity qubit teleporta...
Seth Lloyd, Jeffrey H. Shapiro, Franco N. C. Wong,...
ALGORITHMICA
2002
121views more  ALGORITHMICA 2002»
13 years 10 months ago
Sharp Quantum versus Classical Query Complexity Separations
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 querie...
J. Niel de Beaudrap, Richard Cleve, John Watrous
AI
2002
Springer
13 years 10 months ago
QUANTUM: A Function-Based Question Answering System
Abstract In this paper, we describe our Question Answering (QA) system called QUANTUM. The goal of QUANTUM is to find the answer to a natural language question in a large document ...
Luc Plamondon, Leila Kosseim
ISCA
2007
IEEE
94views Hardware» more  ISCA 2007»
13 years 10 months ago
Tailoring quantum architectures to implementation style: a quantum computer for mobile and persistent qubits
In recent years, quantum computing (QC) research has moved from the realm of theoretical physics and mathematics into real implementations [9]. With many different potential hardw...
Eric Chi, Stephen A. Lyon, Margaret Martonosi
TCAD
2008
102views more  TCAD 2008»
13 years 10 months ago
Quantum Circuit Simplification and Level Compaction
Abstract--Quantum circuits are time-dependent diagrams describing the process of quantum computation. Usually, a quantum algorithm must be mapped into a quantum circuit. Optimal sy...
Dmitri Maslov, Gerhard W. Dueck, D. Michael Miller...
SLOGICA
2008
101views more  SLOGICA 2008»
13 years 10 months ago
A Dynamic-Logical Perspective on Quantum Behavior
In this paper we show how recent concepts from Dynamic Logic, and in particular from Dynamic Epistemic logic, can be used to model and interpret quantum behavior. Our main thesis ...
Alexandru Baltag, Sonja Smets
MSCS
2006
106views more  MSCS 2006»
13 years 10 months ago
LQP: the dynamic logic of quantum information
We present a dynamic logic for reasoning about information flow in quantum programs. In particular, we give a finitary syntax and a relational semantics for a Logic of Quantum Pro...
Alexandru Baltag, Sonja Smets