期刊
PHYSICAL REVIEW LETTERS
卷 114, 期 14, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.114.146401
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资金
- Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan [24224009]
- Japan Science and Technology Agency
- ImPACT Program of the Council for Science, Technology and Innovation (Cabinet Office, Government of Japan)
We present the first unbiased results for the mobility mu of a one-dimensional Holstein polaron obtained by numerical analytic continuation combined with diagrammatic and worldline Monte Carlo methods in the thermodynamic limit. We have identified for the first time several distinct regimes in the lambda-T plane including a band conduction region, incoherent metallic region, an activated hopping region, and a high-temperature saturation region. We observe that although mobilities and mean free paths at different values of lambda differ by many orders of magnitude at small temperatures, their values at T larger than the bandwidth become very close to each other.
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