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CONDENSED MATTER PHYSICS. “We consider the case of a Bose-Einstein condensate (BEC) of ultracold atoms bouncing resonantly on an oscillating atom mirror.” https://lnkd.in/e5UXiem5 View in LinkedIn

VALIDATION. “A number of experiments providing evidence of discrete time crystals have been reported.” https://lnkd.in/e5UXiem5 View in LinkedIn

OPTIONS. “To create such a ‘discrete time crystal’, a range of experimental platforms have been proposed, including a periodically driven Bose-Einstein condensate, driven spin-based systems, and driven open dissipative systems.” https://lnkd.in/e5UXiem5 View in LinkedIn

BREAKING SYMMETRY. “In particular, it was shown that a periodically driven many-body system can spontaneously break discrete time-translation symmetry and self-reorganize its motion so that it evolves with a period longer than the drive.” https://lnkd.in/e5UXiem5 View in LinkedIn

IMPETUS. “However, his idea inspired further proposals in time-independent and time-dependent quantum systems.” https://lnkd.in/e5UXiem5 View in LinkedIn

TOO FAR OUT. “While a classical particle can perform periodic motion even if its energy is the lowest possible and a classical time crystal can form, the quantum time crystal proposed by Wilczek turned out not to be feasible.” https://lnkd.in/e5UXiem5 View in LinkedIn

PHOTONIC CRYSTALS. “For example, by imposing periodic behavior of the refractive index in space in dielectric materials, one obtains photonic crystals in which the propagation of electromagnetic waves possesses similar properties to the transport of an electron in a space crystal.” https://lnkd.in/e5UXiem5 View in LinkedIn

QED. “We will demonstrate that quantum fluctuations in the scale factor modify the Friedmann equations, giving rise to the late-time accelerated expansion of the universe, and they may also considerably modify the effective universe potential.” https://www.mdpi.com/2218-1997/7/6/164/htm View in LinkedIn

HYPOTHESIS. “In addition, it was demonstrated that fast scale factor oscillations modify the current sign and magnitude of the average cosmological force, thus making it one of the potential probable causes of the modification of Newtonian dynamics in galaxy-scale systems.” https://www.mdpi.com/2218-1997/7/6/164/htm View in LinkedIn

CONFIRMATION. “Experimental evidence of relatively fast scale factor oscillations started to emerge very recently.” https://www.mdpi.com/2218-1997/7/6/164/htm View in LinkedIn