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Christine M. Carmichael

Publications and source records attributed to Christine M. Carmichael.

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The fundamental importance of discourse in theoretical physics

The purpose of the following paper is to demonstrate that the "limits of physics" are in a very important way determined by the conceptual framework and language of discourse that we use to describe physical reality. In this paper we examine three areas where the structure of discourse has been particularly difficult. In this regard we examine three problems, the problem of time (which is discussed in two sections of the paper), the problem of non-locality in quantum mechanics and some related general difficulties of interpretation specific to the Copenhagen school, and the concept of maximality as it is employed with respect to cosmic inflation in general relativity and quantum cosmology.

quant-ph

Comparative Quantum Cosmology: Causality, Singularity, and Boundary Conditions

In this review article we compare the recent work of Peter Lynds, "On a finite universe with no beginning or end", with that of Stephen Hawking, primarily "Quantum Cosmology, M-Theory, and the Anthropic Principle", and two foundational works by Sean M. Carroll and Jennifer Chen, "Does Inflation Provide Natural Conditions for the Universe" and "Spontaneous Inflation and the Origin of the Arrow of Time", in order to evaluate their comparative treatments of the nature and role of causality, time ordering, thermodynamic reversibility, singularities and boundary conditions in the formation of the early universe. We briefly reference Smolin and Kauffman's recent arguments with respect to possible processes of "evolutionary selection" in early universe formation as an alternative explanation to key elements of Hawking's earlier "M-Theory", and its attendant anthropic principle. We also briefly excerpt a short section of Smolin's recent work on topology in quantum loop gravity, simply as an illustrative example of the type of complex quantum topological transformation which he offers as a theoretical alternative to string theory in quantum cosmology.

gr-qc