Quantum Theory: a Pragmatist Approach

While its applications have made quantum theory arguably the most successful theory in physics, its interpretation continues to be the subject of lively debate within the community of physicists and philosophers concerned with conceptual foundations. This situation poses a problem for a pragmatist for whom meaning derives from use. While disputes about how to use quantum theory have arisen from time to time, they have typically been quickly resolved, and consensus reached, within the relevant scientific sub-community. Yet rival accounts of the meaning of quantum theory continue to proliferate . In this article I offer a diagnosis of this situation and outline a pragmatist solution to the problem it poses, leaving further details for subsequent articles

Domain Tasting Is Taking Over the Internet as a Result of ICANN’s “Add Grace Period”

When a domain name is registered, the registrant is given five days to cancel for a full refund. While the purpose of this grace period is to protect those who innocently err in the registration process, speculators have taken advantage of the grace period through a process called domain tasting. These domain tasters register hundreds of thousands of domain names and cancel the vast majority of them within the five-day grace period, keeping only those that may be valuable as placeholder advertising websites or to holders of trademark rights. This iBrief will outline the domain tasting process, analyze why it is a problem, and discuss solutions to the problem. Ultimately, it concludes that the five-day grace period is unnecessary because it serves little, if any, legitimate purpose

Quantum decoherence in a pragmatist view: Resolving the measurement problem

This paper aims to show how adoption of a pragmatist interpretation permits a satisfactory resolution of the quantum measurement problem. The classic measurement problem dissolves once one recognizes that it is not the function of the quantum state to describe or represent the behavior of a quantum system. The residual problem of when, and to what, to apply the Born Rule may then be resolved by judicious appeal to decoherence. This can give sense to talk of measurements of photons and other particles even though quantum field theory does not describe particles

Is UK transnational education 'one of Britain's great growth industries of the future'?

Against the backdrop of unprecedented growth in the global demand for higher education, the UK government has recognised that there is a huge potential market beyond conventional ‘export education ’, if its universities can find ways of providing ‘transnational education’ (TNE) to the millions of foreign students unable or unwilling to travel to the UK. This paper tests the thesis that TNE represents ‘one of Britain’s great growth industries of the future’. For TNE to flourish, three conditions need to be satisfied, namely: that there is already a strong base of UK TNE activity and expertise on which to build; second, that there will be continuing growth in demand for UK TNE; and finally, that UK universities have the capability and willingness to expand supply to meet any future growth in demand. It finds little evidence to support the thesis that TNE is, in fact, likely to be a great growth industry and highlights the dangers for policymakers of setting objectives in the absence of a strong evidence base about current capabilities and future market trends

Quantum decoherence in a pragmatist view: Part I

The quantum theory of decoherence plays an important role in a pragmatist interpretation of quantum theory. It governs the descriptive content of claims about values of physical magnitudes and offers advice on when to use quantum probabilities as a guide to their truth. The content of a claim is to be understood in terms of its role in inferences. This promises a better treatment of meaning than that of Bohr. Quantum theory models physical systems with no mention of measurement: it is decoherence, not measurement, that licenses application of Born's probability rule. So quantum theory also offers advice on its own application. I show how this works in a simple model of decoherence, and then in applications to both laboratory experiments and natural systems. Applications to quantum field theory and the measurement problem will be discussed elsewhere