Calculation and Generalization of Non-Adiabatic Geometric Phase of Isotonic Oscillator with Operator Decomposition

An Nan; YANG Xin-E

Chinese Physics C> 2005, Vol. 29> Issue(4) : 350-353

Calculation and Generalization of Non-Adiabatic Geometric Phase of Isotonic Oscillator with Operator Decomposition

An Nan ^, ,
YANG Xin-E

Department of physics,School of Science,Tianjin University,Tianjin 300072,China

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Abstract：
Operator decomposition approach is used to calculate the non-adiabatic geometric phase of anharmonic oscillator. As an example we focus on isotonic oscillator, a type of anharmonic oscillator. The Aharonov-Anandan phase is derived when we choose base state and the first excitation state as cyclic initial states. Then we generalize our result by choosing three states or more states as cyclic initial states. Finally we give an general formula of Aharonov-Anandan phase for time-independent systems and discuss its applicability.

References

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An Nan and YANG Xin-E. Calculation and Generalization of Non-Adiabatic Geometric Phase of Isotonic Oscillator with Operator Decomposition[J]. Chinese Physics C, 2005, 29(4): 350-353.

An Nan and YANG Xin-E. Calculation and Generalization of Non-Adiabatic Geometric Phase of Isotonic Oscillator with Operator Decomposition[J]. Chinese Physics C, 2005, 29(4): 350-353. shu

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Received: 2004-07-12
Revised: 2004-08-07

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Calculation and Generalization of Non-Adiabatic Geometric Phase of Isotonic Oscillator with Operator Decomposition

An Nan ^,
YANG Xin-E

Corresponding author: An Nan,

Department of physics,School of Science,Tianjin University,Tianjin 300072,China

Received Date: 2004-07-12
Accepted Date: 2004-08-07
Available Online: 2005-04-05

Abstract: Operator decomposition approach is used to calculate the non-adiabatic geometric phase of anharmonic oscillator. As an example we focus on isotonic oscillator, a type of anharmonic oscillator. The Aharonov-Anandan phase is derived when we choose base state and the first excitation state as cyclic initial states. Then we generalize our result by choosing three states or more states as cyclic initial states. Finally we give an general formula of Aharonov-Anandan phase for time-independent systems and discuss its applicability.