Spontaneous symmetry breaking in a driven-dissipative system
arXiv:2103.03748 · doi:10.1103/PhysRevA.104.023318
Abstract
Spontaneous symmetry breaking (SSB) is a key concept in physics that for decades has played a crucial role in the description of many physical phenomena in a large number of different areas, like particle physics, cosmology, and condensed-matter physics. SSB is thus an ubiquitous concept connecting several, both "high" and "low" energy, areas of physics and many textbooks describe its basic features in great detail. However, to study the dynamics of symmetry breaking in the laboratory is extremely difficult. In condensed-matter physics, for example, tiny external disturbances cause a preference for the breaking of the symmetry in a particular configuration and typically those disturbances cannot be avoided in experiments. Notwithstanding these complications, here we describe an experiment, in which we directly observe the spontaneous breaking of the temporal phase of a driven system with respect to the drive into two distinct values differing by .
arXiv comment8 pages, 9 figures, methods included
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- Discrete time crystals enhanced by Stark potentials in Rydberg atom arrays
- Relevant Analytic Spontaneous Magnetization Relation for the Face-Centered-Cubic Ising Lattice
- Faraday Waves in strongly interacting superfluids
- Parametric pair production of collective excitations in a Bose-Einstein condensate
- Controlled bit-flip of period-doubling and discrete time crystalline states in open systems
- Dynamics of spontaneous symmetry breaking in a space-time crystal