Chen Qinghu et al 1996 J. Phys.: Condens. Matter 8 3391 doi:10.1088/0953-8984/8/19/014
Polaron effective masses with extended coherent states
Chen Qinghu
, Fang Minghu
, Zhang Qirui, Wang Kelin§ and Wan Shaolong§
The effective mass of a large polaron is calculated using the extended phonon coherent state proposed in our previous paper. In the weak-coupling limit, the mass expansion obtained can reproduce the fourth-order perturbative result. Moreover, in the intermediate-coupling range, the calculated results are in good agreement with those of other approaches.
- PACS
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71.38.Fp Large or Fröhlich polarons
71.18.+y Fermi surface: calculations and measurements; effective mass, g factor
- Subjects
- Dates
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Issue 19 (6 May 1996)
Received 26 September 1995, in final form 6 December 1995
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Polaron effective masses with extended coherent states
Chen Qinghu et al 1996 J. Phys.: Condens. Matter 8 3391
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