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Optical conductivity of the Hubbard chain away from half filling

Abstract:

We consider the optical conductivity σ1(ω) in the metallic phase of the one-dimensional Hubbard model. Our results focus on the vicinity of half filling and the frequency regime around the optical gap in the Mott insulating phase. By means of a density-matrix renormalization group implementation of the correction-vector approach, σ1(ω) is computed for a range of interaction strengths and dopings. We identify an energy scale Eopt above which the optical conductivity shows a rapid increase. We ...

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Publication status:
Published
Peer review status:
Peer reviewed
Version:
Accepted manuscript

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Publisher copy:
10.1103/PhysRevB.93.125108

Authors


Tiegel, AC More by this author
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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Theoretical Physics
Dargel, PE More by this author
Honecker, A More by this author
Pruschke, T More by this author
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Grant:
EP/I032487/1, EP/J014885/1
Publisher:
American Physical Society Publisher's website
Journal:
Physical Review B Journal website
Volume:
93
Issue:
12
Publication date:
2016-03-03
DOI:
EISSN:
1550-235X
ISSN:
2469-9950
URN:
uuid:a2209cde-e409-4d55-a1ef-633c22143c81
Source identifiers:
612229
Local pid:
pubs:612229
Keywords:

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