Fractional time crystals
نویسندگان
چکیده
منابع مشابه
Time Crystals
In this talk we will discuss the new idea of "Time Crystals" †. The most important idea in physics is that physics laws are governed by symmetry. Equally important is the result of symmetry breaking. A standard example of symmetry breaking is the existence of crystals: the symmetry breaking of the continuous spatial translation symmetry to the discrete spatial translation symmetry gives the var...
متن کاملFloquet Time Crystals.
We define what it means for time translation symmetry to be spontaneously broken in a quantum system and show with analytical arguments and numerical simulations that this occurs in a large class of many-body-localized driven systems with discrete time-translation symmetry.
متن کاملQuantum time crystals.
Some subtleties and apparent difficulties associated with the notion of spontaneous breaking of time-translation symmetry in quantum mechanics are identified and resolved. A model exhibiting that phenomenon is displayed. The possibility and significance of breaking of imaginary time-translation symmetry is discussed.
متن کاملTime crystals: a review.
Time crystals are time-periodic self-organized structures postulated by Frank Wilczek in 2012. While the original concept was strongly criticized, it stimulated at the same time an intensive research leading to propositions and experimental verifications of discrete (or Floquet) time crystals-the structures that appear in the time domain due to spontaneous breaking of discrete time translation ...
متن کاملCrystals of Time
Spontaneous symmetry breaking is ubiquitous in nature. It occurs when the ground state (classically, the lowest energy state) of a system is less symmetrical than the equations governing the system. Examples in which the symmetry is broken in excited states are common—one just needs to think of Kepler’s elliptical orbits, which break the spherical symmetry of the gravitational force. But sponta...
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ژورنال
عنوان ژورنال: Physical Review A
سال: 2019
ISSN: 2469-9926,2469-9934
DOI: 10.1103/physreva.99.033626