Exact Solution to Spin Squeezing of the Arbitrary-Range Spin Interaction and Transverse Field Model
| Autor: | Wang Nuanrang, Feng Keming, Zhao Huan, Yang Renfu, Chen Xing, Zhang Zhenwei |
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| Rok vydání: | 2016 |
| Předmět: |
Physics
Range (particle radiation) Spin polarization General Physics and Astronomy Interaction model Zero field splitting 01 natural sciences 010305 fluids & plasmas Ion Exact solutions in general relativity Spin wave Quantum mechanics 0103 physical sciences Condensed Matter::Strongly Correlated Electrons 010306 general physics Spin-½ |
| Zdroj: | Chinese Physics Letters. 33:104203 |
| ISSN: | 1741-3540 0256-307X |
| Popis: | We investigate spin squeezing effects of trapped ions in an off-resonance optical potential system using the arbitrary range spin—spin interaction and transverse field model. The collective spin noises at any time are analyzed exactly. The general expression of spin squeezing factor is presented for arbitrary-range spin interaction. For the nearest-neighbor and next-nearest neighbor spin interaction model, the analytic solutions are reduced from the general expressions. It is shown that the maximum spin squeezing is enhanced for the general arbitrary-range spin interaction compared with the nearest-neighbor interaction model as the long-range interaction with arbitrary sites enforces stronger correlation. |
| Databáze: | OpenAIRE |
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