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4 giorni fa · The simultaneous breaking of inversion symmetry, I, and time reversal symmetry, T, can lead to the linear magnetoelectric effect (LME) 19,20, and to the magnetically-induced electric polarization ...
4 giorni fa · The planar grasshopper problem, originally introduced by Goulko and Kent [Proc. R. Soc. A 473, 20170494 (2017)], is a striking example of a model with long-range isotropic interactions whose ground states break rotational symmetry. In this paper we analyze and explain the nature of this symmetry breaking with emphasis on the importance of dimensionality. Interestingly, rotational symmetry is ...
4 giorni fa · Our findings emphasize the significance of symmetry breaking in nonlinear optics and have potential applications in the development of novel nanodevices for optical sensing, imaging, and communication technologies.
2 giorni fa · In certain limits, there is an emergent mixed 't Hooft anomaly between the quotient U ̃ (1) symmetry and the dual Z ̂ 2 symmetry. In 1D, the superfluid phase is mapped to an intrinsically gapless symmetry-protected topological (SPT) phase, as supported by density-matrix renormalization group (DMRG) calculations.
2 giorni fa · II Spatial symmetry and the oddness of the Faraday effect. Let’s discuss how the spatial symmetry causes the oddness of the Faraday rotation in the usual case and how it is modified if the spatial symmetry is broken. Figure 1 illustrates the discussed phenomenon from the point of view of what an observer might see in the real world and ...
1 giorno fa · This is because FDPT is based on the adiabatic hypothesis which excludes interacting ground states with different symmetry from the unperturbed non-interacting state around which perturbation theory is applied. More explicitly spontaneous symmetry breaking means that the perturbation series breaks down since the final ground state is orthogonal ...
1 giorno fa · Furthermore, what particularly captivates the attention of researchers is the continuous and dynamic relation between periodic and aperiodic symmetry in reality. By knowing the fluid interchange between periodic and aperiodic structures ( structures repeated infinitely in space and not respectively), one can perceive the world as an entity in constant evolution, not only through time but also ...
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