Solid-state qubits under control
Article Abstract:
The proof that macroscopic systems can behave quantum mechanically has changed the earlier view that there is no fundamental difference in microscopic systems obeying quantum mechanics and macroscopic systems in classical physics. Nakamura and colleagues have reported on a step towards the realization of macroscopic quantum coherence, providing evidence of quantum superposition of charge states of a single-Cooper-pair box.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1999
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Putting an electron to rest
Article Abstract:
S Peil and G. Gabrielse have studied the fundamental quantum limit of the cyclotron motion of a single electron isolated from its surroundings. Gabrielse and colleagues developed a cylindrical Penning trap which reduces spontaneous emission by a factor of 140. The ability to control the cyclotron motion provides increased accuracy when measuring the electron magnetic moment.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1999
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