Please use this identifier to cite or link to this item: http://hdl.handle.net/10497/16982
Title: 
An experimental observation of geometric phases for mixed states using NMR interferometry
Authors: 
Issue Date: 
2003
Citation: 
Du, J., Zou, P., Shi, M., Kwek, L. C., Pan, J. -W., Oh, C. H., Ekert, A., ... & Ericsson, M. (2003). An experimental observation of geometric phases for mixed states using NMR interferometry. Physical Review Letters, 91(10), 100403.
Abstract: 
Examples of geometric phases abound in many areas of physics. They offer both fundamental
insights into many physical phenomena and lead to interesting practical implementations. One of
them, as indicated recently, might be an inherently fault-tolerant quantum computation. This,
however, requires to deal with geometric phases in the presence of noise and interactions between
different physical subsystems. Despite the wealth of literature on the subject of geometric phases
very little is known about this very important case. Here we report the first experimental study
of geometric phases for mixed quantum states. We show how different they are from the well
understood, noiseless, pure-state case.
Description: 
This is the original draft, prior to peer-review, of a manuscript published in Physical Review Letters. The published version is available online at http://dx.doi.org/10.1103/PhysRevLett.91.100403.
URI: 
ISSN: 
0031-9007
Other Identifiers: 
10.1103/PhysRevLett.91.100403.
Appears in Collections:Journal Articles

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