P T -invariant Weyl semimetals in gauge-symmetric systems

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P T -invariant Weyl semimetals in gauge-symmetric systems. / Lepori, L.; Fulga, I. C.; Trombettoni, A.; Burrello, M.

In: Physical Review B, Vol. 94, No. 8, 01.08.2016, p. 85107.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Lepori, L, Fulga, IC, Trombettoni, A & Burrello, M 2016, 'P T -invariant Weyl semimetals in gauge-symmetric systems', Physical Review B, vol. 94, no. 8, pp. 85107. https://doi.org/10.1103/PhysRevB.94.085107

APA

Lepori, L., Fulga, I. C., Trombettoni, A., & Burrello, M. (2016). P T -invariant Weyl semimetals in gauge-symmetric systems. Physical Review B, 94(8), 85107. https://doi.org/10.1103/PhysRevB.94.085107

Vancouver

Lepori L, Fulga IC, Trombettoni A, Burrello M. P T -invariant Weyl semimetals in gauge-symmetric systems. Physical Review B. 2016 Aug 1;94(8):85107. https://doi.org/10.1103/PhysRevB.94.085107

Author

Lepori, L. ; Fulga, I. C. ; Trombettoni, A. ; Burrello, M. / P T -invariant Weyl semimetals in gauge-symmetric systems. In: Physical Review B. 2016 ; Vol. 94, No. 8. pp. 85107.

Bibtex

@article{e2f3446d9d854fdb8720ba736908c11a,
title = "P T -invariant Weyl semimetals in gauge-symmetric systems",
abstract = "Weyl semimetals typically appear in systems in which either time-reversal (T ) or inversion (P ) symmetry is broken. Here we show that in the presence of gauge potentials these topological states of matter can also arise in fermionic lattices preserving both T and P . We analyze in detail the case of a cubic lattice model with π fluxes, discussing the role of gauge symmetries in the formation of Weyl points and the difference between the physical and the canonical T and P symmetries. We examine the robustness of this P T -invariant Weyl semimetal phase against perturbations that remove the chiral sublattice symmetries, and we discuss further generalizations. Finally, motivated by advances in ultracold-atom experiments and by the possibility of using synthetic magnetic fields, we study the effect of random perturbations of the magnetic fluxes, which can be compared to a local disorder in realistic scenarios.",
author = "L. Lepori and Fulga, {I. C.} and A. Trombettoni and M. Burrello",
year = "2016",
month = aug,
day = "1",
doi = "10.1103/PhysRevB.94.085107",
language = "English",
volume = "94",
pages = "85107",
journal = "Physical Review B",
issn = "2469-9950",
publisher = "American Physical Society",
number = "8",

}

RIS

TY - JOUR

T1 - P T -invariant Weyl semimetals in gauge-symmetric systems

AU - Lepori, L.

AU - Fulga, I. C.

AU - Trombettoni, A.

AU - Burrello, M.

PY - 2016/8/1

Y1 - 2016/8/1

N2 - Weyl semimetals typically appear in systems in which either time-reversal (T ) or inversion (P ) symmetry is broken. Here we show that in the presence of gauge potentials these topological states of matter can also arise in fermionic lattices preserving both T and P . We analyze in detail the case of a cubic lattice model with π fluxes, discussing the role of gauge symmetries in the formation of Weyl points and the difference between the physical and the canonical T and P symmetries. We examine the robustness of this P T -invariant Weyl semimetal phase against perturbations that remove the chiral sublattice symmetries, and we discuss further generalizations. Finally, motivated by advances in ultracold-atom experiments and by the possibility of using synthetic magnetic fields, we study the effect of random perturbations of the magnetic fluxes, which can be compared to a local disorder in realistic scenarios.

AB - Weyl semimetals typically appear in systems in which either time-reversal (T ) or inversion (P ) symmetry is broken. Here we show that in the presence of gauge potentials these topological states of matter can also arise in fermionic lattices preserving both T and P . We analyze in detail the case of a cubic lattice model with π fluxes, discussing the role of gauge symmetries in the formation of Weyl points and the difference between the physical and the canonical T and P symmetries. We examine the robustness of this P T -invariant Weyl semimetal phase against perturbations that remove the chiral sublattice symmetries, and we discuss further generalizations. Finally, motivated by advances in ultracold-atom experiments and by the possibility of using synthetic magnetic fields, we study the effect of random perturbations of the magnetic fluxes, which can be compared to a local disorder in realistic scenarios.

U2 - 10.1103/PhysRevB.94.085107

DO - 10.1103/PhysRevB.94.085107

M3 - Journal article

VL - 94

SP - 85107

JO - Physical Review B

JF - Physical Review B

SN - 2469-9950

IS - 8

ER -

ID: 184607130