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Home
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[["minutes", "Minutes"], ["notes", "Notes"], ["paper", "Paper"], ["poster", "Poster"], ["slides", "Slides"], ["summary", "Summary"]]
Dr.
CSIC
47e79b14e098d3ace08896a117611a25
3
The 35th International Symposium on Lattice Field Theory
The 35th International Symposium on Lattice Field Theory gathers a large community of theoretical particle physics researchers, experts in the study of strongly interacting systems – primarily Quantum Chromodynamics, the theory describing the strong interactions of quarks and gluons. The Symposium will be held from the 18th to the 24th of June 2017 in an exceptional location, Granada, a jewel of multicultural architecture and heritage. The Conference venue, the Granada Exhibition and Conference Centre, is very well situated in the centre of this historic city. The Symposium will take place for the first time in Spain and is jointly organised by the Spanish Lattice Field Theory community.
False
Palacio de Congresos
PALACIO DE CONGRESOS
Paseo del Violón s/n, 18006
Granada, SPAIN
2017-06-18T17:00:00
2017-06-24T14:00:00
2016-06-09T17:36:25
2018-01-02T17:41:17
Europe/Madrid
Dr.
University of Granada
85b9574eda063bd3959ba5ae65d73175
Dr.
CSIC
47e79b14e098d3ace08896a117611a25
Mr.
UGR
13fe955382e001a4eecbcf6d44e29096
Prof.
Universidad Autónoma de Madrid and IFT UAM-CSIC
a88d8baccb3514d985aa08b6796aba4b
CP3-Origins
32458b18e04a926e7c97b6464987dfae
CERN
2fdcccfe3858f5bf05592a7f4fe7b422
408
false
[["minutes", "Minutes"], ["notes", "Notes"], ["paper", "Paper"], ["poster", "Poster"], ["slides", "Slides"], ["summary", "Summary"]]
2
Poster
Charge-density-wave phases of one-dimensional model with long-range repulsive interactions
Dr.
Lancaster University
2031007ed8c130d9e1af5ca2d9ec5617
Dr.
Lancaster University
2031007ed8c130d9e1af5ca2d9ec5617
Palacio de Congresos
None
2017-06-20T20:30:00
2017-06-20T21:30:00
01:00
The one-dimensional extended t-V model on a lattice describes fermions with repulsive interactions of finite range and exhibits a quantum phase transition between a Luttinger liquid conducting phase and a Mott insulating phase. Its properties make it useful in the description of candidate materials for Mott transistor devices. It is known that by tailoring the potential energy of the insulating system, one can force a phase transition into a different insulating phase [1, 2]. We show how to construct all possible charge-density-wave phases of the system at low critical densities in the atomic limit. Higher critical densities are investigated by a brute-force analysis of the possible finite unit cells of the Fock states. We present example phase diagrams of the system.
We construct a matrix product operator representation of the Hamiltonian of the t-V model. Using the matrix product states (MPS) approach we go beyond the atomic limit, where the phase diagrams are much richer. MPS method is especially problematic near the transition between two different charge-density-wave phases and we show how the bond dimension must be increased in order to converge the results.
Our results indicate that the number of possible insulating phases grows with both the maximum interaction range and the fermion density and may cause the loss of insulating properties of the material at finite temperatures.
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**References**
1. P. Schmitteckert and R. Werner, Phys. Rev. B, 69, 195115 (2004).
2. T. Mishra, J. Carrasquilla, and M. Rigol, Phys. Rev. B, 84, 115135 (2011).