Practical Schrodinger's cats
Article Abstract:
A microwave field can be induced to exist in two separate states with the possibility of verifying that it remains in that condition as an application of Schrodinger's cat. This cat was Schrodinger's metaphor for a paradox of quantum mechanics: a quantum cat in a box, though it may have been poisoned, will remain neither dead nor alive until someone opens the box and looks at it. M. Brune and colleagues have suggested a means for investigating this quantum nondemolition aspect of quantum optics that uses a beam of highly excited 'Rydberg' states of alkali atoms to control trapped radiation.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1992
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Discrete charm of the photon
Article Abstract:
The discreteness of the quantum field can visualized by studying the effects of the discreetness using Rydberg atoms. The atoms are used to study the field in a cavity driven by a weak, coherent photon field. This allows the determination of the effects of the field on the collapse-revival dynamics. An alternative is to use single laser-cooled trapped ions. The discreetness is determined by the quantum vibrational movement of the ions. Regulation of the environment of the ions allows the regulation of the nature of the quantum state that is in equilibrium with the outer environment.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1996
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Where the weirdness comes from
Article Abstract:
Durr, Nonn and Rempe have reported on the use of an atom interferometer to show that the Shrodinger concept of particle entanglement is the key to wave-particle duality. This differs from the usual explanations of duality, and confirms that entanglement is necessary in establishing quantum weirdness. The experiments involved the study of interference fringes and the demonstration of fringes of high contrast.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1998
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