UNSPECIFIED (2005) Communicating Quantum Processes. In: 32nd ACM SIGPLAN-SIGACT Symposium on Principles of Programming Languages, JAN 12-14, 2005, Long Beach, CA.

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Abstract

We define a language CQP (Communicating Quantum Processes) for modelling systems which combine quantum and classical communication and computation. CQP combines the communication primitives of the pi-calculus with primitives for measurement and transformation of quantum state; in particular; quantum bits (qubits) can be transmitted from process to process along communication channels. CQP has a static type system which classifies channels, distinguishes between quantum and classical data, and controls the use of quantum state. We formally define the syntax, operational semantics and type system of CQP, prove that the semantics preserves typing; and prove that typing guarantees that each qubit is owned by a unique process within a system. We illustrate CQP by defining models of several quantum communication systems; and outline our plans for using CQP as the foundation for formal analysis and verification of combined quantum and classical systems.

Item Type:	Conference Item (UNSPECIFIED)
Subjects:	Q Science > QA Mathematics > QA76 Electronic computers. Computer science. Computer software
Journal or Publication Title:	ACM SIGPLAN NOTICES
Publisher:	ASSOC COMPUTING MACHINERY
ISSN:	0362-1340
Date:	January 2005
Volume:	40
Number:	1
Number of Pages:	13
Page Range:	pp. 145-157
Publication Status:	Published
Title of Event:	32nd ACM SIGPLAN-SIGACT Symposium on Principles of Programming Languages
Location of Event:	Long Beach, CA
Date(s) of Event:	JAN 12-14, 2005
URI:	http://wrap.warwick.ac.uk/id/eprint/7196

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