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Quantum Information is Physical
David P. DiVincenzo, Daniel Loss
We discuss a few current developments in the use of quantum mechanically coherent systems for information processing. In each of these developments, Rolf Landauer has played a cruc…
Macroscopic Quantum Coherence in Molecular Magnets
Alain Chiolero, Daniel Loss
We study macroscopic quantum coherence in antiferromagnetic molecular magnets in the presence of magnetic fields. Such fields generate artificial tunnel barriers with externally tu…
Macroscopic Quantum Coherence in Ferrimagnets
Alain Chiolero, Daniel Loss
We study macroscopic quantum coherence (MQC) in small ferrimagnets. Through semi-classical calculations we show that even a small uncompensated moment has a drastic effect on MQC.…
Quantum Computation with Quantum Dots
Daniel Loss, David P. DiVincenzo
We propose a new implementation of a universal set of one- and two-qubit gates for quantum computation using the spin states of coupled single-electron quantum dots. Desired operat…