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On Identifying Background-Structure in Classical Field Theories
background-structure background-independence geometric objects absolute objects space-time structures Newton Einstein Newtonian mechanics Newtonian gravitation general relativity classical field theories action-reaction principle Trautman-Anderson-Friedman programme
2016/6/15
I examine a property of theories called ‘background-independence’ that Einsteinian gravitation is thought to exemplify. This concept has figured in the work of Rovelli (2001; 2004), Smolin (2006), Giu...
The Entanglement Structure of Quantum Field Systems
relativistic quantum field theory algebraic approach ontology quantum fields quantum entanglement Reeh-Schlieder theorem non-separability ontic structural realism
2016/6/14
This essay considers the question of the ontology of relativistic quantum field theory (RQFT). It aims to discuss possible implications of the peculiarities of quantum entanglement and quantum non-loc...
Causality and Chance in Relativistic Quantum Field Theories
Local causality Microcausality Bell correlations Relativistic quantum field theories Pragmatist interpretation Causal intervention
2016/6/13
Bell appealed to the theory of relativity in formulating his principle of local causality. But he maintained that quantum field theories do not conform to that principle, even when their field equatio...
Pragmatists and Purists on CPT Invariance in Relativistic Quantum Field Theories
quantum field theory CPT theorem causal perturbation theory
2016/6/12
Philosophers of physics are split on whether foundational issues in relativistic quantum field theory (RQFT) should be framed within pragmatist approaches, which trade mathematical rigor for the abili...
Bell inequality and common causal explanation in algebraic quantum field theory
Bell inequality common cause noncommutativity algebraic quantum field theory
2016/5/30
Bell inequalities, understood as constraints between classical conditional probabilities, can be derived from a set of assumptions representing a common causal explanation of classical correlations. A...
Similarity Assessments,Spacetime,and the Gravitational Field:What Does the Metric Tensor Represent in General Relativity?
general relativity metric tensor similarity-based reasoning
2016/5/30
In this paper I explore the dialectics underlying the choice between a geometrical and a field interpretation of the metric tensor gab in general relativity. My aim is to examine the role of a specifi...
Emergence in Effective Field Theories
emergence effective field theory quantum field theory
2016/5/27
This essay considers the extent to which a concept of emergence can be associated with Effective Field Theories (EFTs). I suggest that such a concept can be characterized by microphysicalism and novel...
Evaluation of the quality of informed consent in a vaccine field trial in a developing country setting
vaccine field developing country
2008/11/14
Background
Informed consent is an ethical and legal requirement for research involving human participants. However, few studies have evaluated the process, particularly in Africa.
Aesthetics and Mobility A Short Introduction into a Moving Field
aesthetics mobility bodily experiences phenomenology
2008/11/7
Aesthetics cannot by any means be defined only as philosophy of art. Everything can be approached from an aesthetic standpoint. Aesthetically interesting ways to move about can be found in most every...
Reality, measurement and locality in Quantum Field Theory
Quantum Field Theory Standard Model Correlations Locality
2008/4/22
It is currently believed that the local causality of Quantum Field
Theory (QFT) is destroyed by the measurement process. This belief
is also based on the Einstein-Podolsky-Rosen (EPR) paradox and on...
Philosophy of mathematics for the last half-century has been dominated in one way or another by Quine’s indispensability argument. The argument alleges that our best scientific theory quantifies over,...
In defence of naivete: The conceptual status of Lagrangian quantum field theory
Quantum field theory QFT
2008/4/14
I analyse the conceptual and mathematical foundations of
Lagrangian quantum field theory (that is, the "naive" quantum field theory used in mainstream physics, as opposed to algebraic quantum field ...
This paper explores various functions of idealizations in quantum field theory. To this end it is important to first distinguish between different kinds of theories and models of or inspired by quantu...
Generating Ontology: From Quantum Mechanics to Quantum Field Theory
quantum field theory particle physics
2008/4/14
Philosophical interpretations of theories generally presuppose that a theory can be presented as a consistent mathematical formulation that is interpreted through models. Algebraic quantum field theor...
This contribution gives an overview of Einstein's work on unified field theory. It characterizes this work from four perspectives, by looking at its conceptual, representational, biographical, and phi...