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Effect of inter-subsystem couplings on the evolution of composite systems

X. X. Yi·H. T. Cui·Y. H. Lin·H. S. Song
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Abstract

The effect of inter-subsystem coupling on the adiabaticity of composite systems and that of its subsystems is investigated. Similar to the adiabatic evolution defined for pure states, non-transitional evolution for mixed states is introduced; conditions for the non-transitional evolution are derived and discussed. An example that describes two coupled qubits is presented to detail the general presentation. The effects due to non-adiabatic evolution on the geometric phase are also presented and discussed.

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X. X. Yi, H. T. Cui, Y. H. Lin, H. S. Song. 2004-05-08. Effect of inter-subsystem couplings on the evolution of composite systems. https://doi.org/10.1103/physreva.71.022107

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