Symmetry breaking: balancing asymmetries

Bruno Garbin; Julien Fatome; Gian-Luca Oppo; Stuart G. Murdoch; Miro Erkintalo; Stéphane Coen

doi:10.1117/12.2557165

30 December 2019 Symmetry breaking: balancing asymmetries

Bruno Garbin, Julien Fatome, Gian-Luca Oppo, Stuart G. Murdoch, Miro Erkintalo, Stéphane Coen

Proceedings Volume 11200, AOS Australian Conference on Optical Fibre Technology (ACOFT) and Australian Conference on Optics, Lasers, and Spectroscopy (ACOLS) 2019; 112003V (2019) https://doi.org/10.1117/12.2557165
Event: ANZCOP, 2019, Melbourne, Australia

Abstract

Spontaneous symmetry breaking (SSB) is a ubiquitous natural phenomenon where a system characterized by certain symmetries can evolve into a state that does not exhibit those symmetries. SSB underpins many fundamental phenomena, including phase transitions in meta-materials or Bose-Einstein condensates, the emergence of the Nambu-Goldstone and Higgs modes of crucial importance in particle physics, or bifurcations in lasers, and could have significant applications, especially in photonics. Physical systems however often exhibit deviations from perfect symmetry because of naturally occurring imperfections. How small asymmetries affect SSB-related dynamics is therefore an important problem. Surprisingly, this has barely been considered in experiments, and even then restricted to situations with only one asymmetry parameter. Here, we report spontaneous breaking of a mirror symmetry in an optical experiment with two controllable asymmetry parameters. Specifically, we explore how controlled asymmetries affect the range of co-existence of two homogeneous states (HSs) with different polarizations in a driven Kerr resonator, and discover that different asymmetries can compensate for each other. In particular, we show that we can restore a standard pitchfork-like response characteristics of SSB under asymmetric conditions.

Citation Download Citation

Bruno Garbin, Julien Fatome, Gian-Luca Oppo, Stuart G. Murdoch, Miro Erkintalo, and Stéphane Coen "Symmetry breaking: balancing asymmetries", Proc. SPIE 11200, AOS Australian Conference on Optical Fibre Technology (ACOFT) and Australian Conference on Optics, Lasers, and Spectroscopy (ACOLS) 2019, 112003V (30 December 2019); https://doi.org/10.1117/12.2557165

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KEYWORDS

Polarization

Single sideband modulation

Resonators

Birefringence

Mirrors

Physics

Solids

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