Characterization of complex quantum dynamics with a scalable NMR information processor


Autoria(s): Ryan, CA; Emerson, J; Poulin, D; Negrevergne, C; Laflamme, R
Contribuinte(s)

George Basbas

Jack Sandweiss

Reinhardt B Schuhmann

Stanley G Brown

Data(s)

01/01/2005

Resumo

We present experimental results on the measurement of fidelity decay under contrasting system dynamics using a nuclear magnetic resonance quantum information processor. The measurements were performed by implementing a scalable circuit in the model of deterministic quantum computation with only one quantum bit. The results show measurable differences between regular and complex behavior and for complex dynamics are faithful to the expected theoretical decay rate. Moreover, we illustrate how the experimental method can be seen as an efficient way for either extracting coarse-grained information about the dynamics of a large system or measuring the decoherence rate from engineered environments.

Identificador

http://espace.library.uq.edu.au/view/UQ:77815/UQ77815.pdf

http://espace.library.uq.edu.au/view/UQ:77815

Idioma(s)

eng

Publicador

American Physical Society

Palavras-Chave #Physics, Multidisciplinary #Computation #Tomography #Systems #C1 #249999 Physical Sciences not elsewhere classified #780102 Physical sciences
Tipo

Journal Article