Quantum lattice dynamical effects on single-particle excitations in one-dimensional Mott and Peierls insulators

Physical Review B - Condensed Matter and Materials Physics

Volumn 69, Issue 16, 2004, Pages

  Fehske, H ^a   Wellein, G ^b   Hager, G ^b   Weisse A ^c   Bishop, A R ^d  

^a UNIVERSITY OF GREIFSWALD   (Germany)

^b UNIVERSITY OF ERLANGEN NUREMBERG   (Germany)

^c UNIVERSITY OF NEW SOUTH WALES   (Australia)

^d LOS ALAMOS NATIONAL LABORATORY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ARTICLE; CALCULATION; DYNAMICS; ELECTRON; EXCITATION; MODEL; PHONON; QUANTUM MECHANICS;

EID: 42749099268     PISSN: 01631829     EISSN: None     Source Type: Journal    
DOI: 10.1103/PhysRevB.69.165115     Document Type: Article

References (35)

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26. 9. The effect of the Q = 0 phonon mode in the (I) PE spectra can be easily calculated and, of course, is included in the data shown.
27. nb (Ref. 16). Computational Resources ranged up to 10 GB of memory and 250 CPU hours on a current Itanium 2 machine (SGI Altix) for the 128-site PI cases.
28. The ground-state calculation in the MI case with PBC shows a peculiar behavior when going beyond 32 sites. At 64 sites and larger it coincides exactly with the OPC ground state, showing a vanishing bond order at site 64. PBC are hard to establish in our algorithm because of the particular way the DMRG sweeps are performed. Modifications which do not show these deficiencies are under investigation.
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