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5 papers · 1 filter
Lorentz invariance with an invariant energy scale
Joao Magueijo, Lee Smolin
We propose a modification of special relativity in which a physical energy, which may be the Planck energy, joins the speed of light as an invariant, in spite of a complete relativ…
A new wrinkle on the enhancon
Dumitru Astefanesei, Robert C. Myers
We generalize the basic enhancon solution of Johnson, Peet and Polchinski by constructing solutions without spherical symmetry. A careful consideration of boundary conditions at th…
NMR Quantum Information Processing and Entanglement
Raymond Laflamme, David G. Cory, Camille Negrevergne +1
In this essay we discuss the issue of quantum information and recent nuclear magnetic resonance (NMR) experiments. We explain why these experiments should be regarded as quantum in…
Substituting a qubit for an arbitrarily large number of classical bits
Ernesto F. Galvao, Lucien Hardy
We show that a qubit can be used to substitute for an arbitrarily large number of classical bits. We consider a physical system S interacting locally with a classical field phi(x)…
Superstars and Giant Gravitons
Robert C. Myers, Oyvind Tafjord
We examine a family of BPS solutions of ten-dimensional type IIb supergravity. These solutions asymptotically approach AdS_5 X S^5 and carry internal `angular' momentum on the five…