Emerging (2+1) D massive graviton in graphene-like systems

Unlike the fundamental forces of the Standard Model the quantum effects of gravity are still experimentally inaccessible. Rather surprisingly quantum aspects of gravity, such as massive gravitons, can emerge in experiments with fractional quantum Hall liquids. These liquids are analytically intracta...

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Bibliographic Details
Published in:New journal of physics 2023-03, Vol.25 (3), p.33019
Main Authors: Salgado-Rebolledo, Patricio, Pachos, Jiannis K
Format: Article
Language:English
Subjects:
Astronomical models
Cosmology
fermion fields in curved space
Fermions
Graphene
Gravitational effects
Gravitons
Gravity
Lattice vibration
Liquids
massive gravitons
optical lattice simulation
Optical lattices
Physics
Quantum gravity
quantum simulation
three-dimensional gravity
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Summary:Unlike the fundamental forces of the Standard Model the quantum effects of gravity are still experimentally inaccessible. Rather surprisingly quantum aspects of gravity, such as massive gravitons, can emerge in experiments with fractional quantum Hall liquids. These liquids are analytically intractable and thus offer limited insight into the mechanism that gives rise to quantum gravity effects. To thoroughly understand this mechanism we employ a graphene-like system and we modify it appropriately in order to realise simple ( 2 + 1 ) -dimensional massive gravity model. More concretely, we employ ( 2 + 1 ) -dimensional Dirac fermions, emerging in the continuous limit of a fermionic honeycomb lattice, coupled to massive gravitons, simulated by bosonic modes positioned at the links of the lattice. The quantum character of gravity can be determined directly by measuring the correlations on the bosonic atoms or by the interactions they effectively induce on the fermions. The similarity of our approach to current optical lattice configurations suggests that quantum signatures of gravity can be simulated in the laboratory in the near future, thus providing a platform to address question on the unification theories, cosmology or the physics of black holes.
ISSN:1367-2630
1367-2630
DOI:10.1088/1367-2630/acc124