From Thought Experiments to Quantum Information
For the first time it is feasible to suggest that we could follow quantum weirdness as far as everyday dimensions, and find out whether anything new intrudes.
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Quantum Gravity as an Ordinary Gauge Theory
In order to get a consistent picture of nature we need to use quantum mechanics to describe the geometry of spacetime. In other words, we should construct a quantum theory of gravity.
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How Come Quantum Theory?
A possible answer to John Wheeler’s question: Why the quantum?
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Information at the Quantum-Classical Frontier
Find out more about how quantum computing might be done.
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Measurement and the Quantum-Classical Transition
As a theoretical physicist, one would really like to elucidate the mathematical structure of this transition and to identify the essential features of quantum mechanics that make it so robust and inevitable.
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(Quantum) Erasing the Nature of Reality
By throwing away information in a particular way, we are then able to alter the quantum mechanical outcomes.
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The Shape of Gravity
New insights into theories with extra dimensions have the potential to address outstanding issues in cosmology.
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Parallel Universes
Could there be a universe in which gravity is a bit stronger, or the electron a bit heavier?
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True Complexity and the Associated Ontology
Dear Colleagues, Science & Ultimate Reality In recent years much attention has been given to the possibility of unifying the various forces of nature within a quantum mechanical framework and to the formulation of a so-called theory of everything. (See the paper posted in this thread by Lee Smolin.) The quest being carried on by…
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Toward a Unified Theory of Quantum Gravity
There is a hope that there will appear a sort of meta-unification, in which the welter of unified theories are themselves unified, and shown to be merely alternate languages for the same underlying structure.