Document Type
Conference Proceeding
Publication Date
1-1-2005
Abstract
We discuss various definitions of decoherence and how it can be measured. We compare and contrast decoherence in quantum systems with an infinite number of eigenstates (such as the free particle and the oscillator) and spin systems. In the former case, we point out the essential difference between assuming "entanglement at all times" and entanglement with the reservoir occuring at some initial time. We also discuss optimum calculational techniques in both arenas.
Publication Source (Journal or Book title)
IEEE Transactions on Nanotechnology
First Page
77
Last Page
82
Recommended Citation
O'Connell, R. (2005). Decoherence in quantum systems. IEEE Transactions on Nanotechnology, 4 (1), 77-82. https://doi.org/10.1109/TNANO.2004.840158
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