Research PapersNo Access

Transfer of a wave packet in double-well potential

Hai-Feng Yang

College of Physics and Electronic Information, Luoyang Normal University, Luoyang 471022, P. R. China

E-mail Address: yanghf263@163.com

Corresponding author.

Search for more papers by this author

Yao-Hua Hu

College of Physics and Electronic Information, Luoyang Normal University, Luoyang 471022, P. R. China

Search for more papers by this author

, and

Yong-Gang Tan

College of Physics and Electronic Information, Luoyang Normal University, Luoyang 471022, P. R. China

Search for more papers by this author

https://doi.org/10.1142/S021797921850131XCited by:0 (Source: Crossref)

Abstract

Energy potentials with double-well structures are typical in atoms and molecules systems. A manipulation scheme using Half Cycles Pulses (HCPs) is proposed to transfer a Gaussian wave packet between the two wells. On the basis of quantum mechanical simulations, the time evolution and the energy distribution of the wave packet are evaluated. The effect of time parameters, amplitude, and number of HCPs on spatial and energy distribution of the final state and transfer efficiency are investigated. After a carefully tailored HCPs sequence is applied to the initial wave packet localized in one well, the final state is a wave packet localized in the other well and populated at the lower energy levels with narrower distribution. The present scheme could be used to control molecular reactions and to prepare atoms with large dipole moments.

Keywords:

PACS: 02.60.Cb, 05.45.-a, 31.15.ae

You currently do not have access to the full text article.
Recommend the journal to your library today!

References

1. A. R. P. Rau, J. Phys. B 12, L193 (1979). Crossref, Web of Science, ADS, Google Scholar
2. S. K. Bhattacharya and A. R. P. Rau, Phys. Rev. A 26, 2315 (1982). Crossref, Web of Science, ADS, Google Scholar
3. V. Averbukh et al., Phys. Rev. A 59, 3695 (1999). Crossref, Web of Science, ADS, Google Scholar
4. Y. Qian, M. Gong and C. Zhang, Phys. Rev. A 87, 013636 (2011). Crossref, Web of Science, Google Scholar
5. L. Shen et al., Chin. Phys. B 18, 5277 (2009). Crossref, Web of Science, ADS, Google Scholar
6. S. Choi, R. Onofrio and B. Sundaram, Phys. Rev. E 92, 042907 (2015). Crossref, Web of Science, ADS, Google Scholar
7. A. Smerzi et al., Phys. Rev. Lett. 79, 4950 (1997). Crossref, Web of Science, ADS, Google Scholar
8. G. J. Milburn et al., Phys. Rev. A 55, 4318 (1997). Crossref, Web of Science, ADS, Google Scholar
9. P. Schmelcher, J. Ackermann and J. Shertzer, Nucl. Instr. and Meth. B 143, 202 (1998). Crossref, Web of Science, ADS, Google Scholar
10. J.-Z. Zhang, Phys. Rev. Lett. 93, 043002 (2004). Crossref, Web of Science, ADS, Google Scholar
11. J.-P. Connerade et al., Eur. Phys. J. D 46, 431 (2008). Crossref, Web of Science, ADS, Google Scholar
12. M. Fauth, H. Walther and E. Werner, Z. Phys. D 7, 293 (1987). Crossref, ADS, Google Scholar
13. F. B. Dunning et al., The Kicked Rydberg Atom, in Advances in Atomic, Molecular, and Optical Physics, eds. P. R. Berman and C. C. Lin (Academic Press, 2005); Vol. 52, p. 49. Crossref, Google Scholar
14. W. Zhao et al., Phys. Rev. Lett. 97, 253003 (2006). Crossref, Web of Science, ADS, Google Scholar
15. M. T. Frey et al., Phys. Rev. A 59, 1434 (1999). Crossref, Web of Science, ADS, Google Scholar
16. B. Schmidt and U. Lorenz, WavePacket: A Matlab package for numerical quantum dynamics. I: Closed quantum systems and discrete variable representations, arXiv:1607.01714. Google Scholar
17. T. Gonzalez-Lezana, E. J. Rackham and D. E. Manolopoulos, J. Chem. Phys. 120, 2247 (2004). Crossref, Web of Science, ADS, Google Scholar
18. X.-M. Tong and S.-I. Chu, Chem. Phys. 217, 119 (1997). Crossref, Web of Science, ADS, Google Scholar
19. M. R. Hermann and J. A. Fleck, Jr., Phys. Rev. A. 38, 6000 (1988). Crossref, Web of Science, ADS, Google Scholar
20. M. D. Feit, J. A. Fleck Jr and A. Steiger, J. Comput. Phys. 47, 412 (1982). Crossref, Web of Science, ADS, Google Scholar