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Hidden Variables and the LargeScale Structure of Spacetime
, 2005
"... We discuss how to embed quantum nonlocality in an approximately classical spacetime background, a question which must be answered irrespective of any underlying microscopic theory of spacetime. We argue that, in deterministic hiddenvariables theories, the choice of spacetime kinematics should be di ..."
Abstract

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We discuss how to embed quantum nonlocality in an approximately classical spacetime background, a question which must be answered irrespective of any underlying microscopic theory of spacetime. We argue that, in deterministic hiddenvariables theories, the choice of spacetime kinematics should be dictated by the properties of generic nonequilibrium states, which allow nonlocal signalling. Such signalling provides an operational definition of absolute simultaneity, which may naturally be associated with a preferred foliation of classical spacetime. The argument applies to any deterministic hiddenvariables theory, and to both flat and curved spacetime backgrounds. We include some critical discussion of Einstein’s 1905 ‘operational ’ approach to relativity, and compare it with that of Poincaré.
Hidden Variables and the LargeScale Structure
, 2005
"... We discuss how to embed quantum nonlocality in an approximately classical spacetime background, a question which must be answered irrespective of any underlying microscopic theory of spacetime. We argue that, in deterministic hiddenvariables theories, the choice of spacetime kinematics should be di ..."
Abstract
 Add to MetaCart
We discuss how to embed quantum nonlocality in an approximately classical spacetime background, a question which must be answered irrespective of any underlying microscopic theory of spacetime. We argue that, in deterministic hiddenvariables theories, the choice of spacetime kinematics should be dictated by the properties of generic nonequilibrium states, which allow nonlocal signalling. Such signalling provides an operational definition of absolute simultaneity, which may naturally be associated with a preferred foliation of classical spacetime. The argument applies to any deterministic hiddenvariables theory, and to both flat and curved spacetime backgrounds. We include some critical discussion of Einstein’s 1905 ‘operational ’ approach to relativity, and compare it with that of Poincaré.