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5 papers · 1 filter
Line defects in the 3d Ising model
M. Billó, M. Caselle, D. Gaiotto +3
We investigate the properties of the twist line defect in the critical 3d Ising model using Monte Carlo simulations. In this model the twist line defect is the boundary of a surfac…
On the theory of composition in physics
Lucien Hardy
We develop a theory for describing composite objects in physics. These can be static objects, such as tables, or things that happen in spacetime (such as a region of spacetime with…
Scale Anomaly as the Origin of Time
Julian Barbour, Matteo Lostaglio, Flavio Mercati
We explore the problem of time in quantum gravity in a point-particle analogue model of scale-invariant gravity. If quantized after reduction to true degrees of freedom, it leads t…
New Dirac points and multiple Landau level crossings in biased trilayer graphene
Maksym Serbyn, Dmitry A. Abanin
Recently a new high-mobility Dirac material, trilayer graphene, was realized experimentally. The band structure of ABA-stacked trilayer graphene consists of a monolayer-like and a…
Symmetry protected topological orders in interacting bosonic systems
Xie Chen, Zheng-Cheng Gu, Zheng-Xin Liu +1
Symmetry protected topological (SPT) states are bulk gapped states with gapless edge excitations protected by certain symmetries. The SPT phases in free fermion systems, like topol…