Quantum Physics

   

Ultrashort-Pulse Laser Oscillators

Authors: George Rajna

With the demonstration of a sub-picosecond thin-disk laser oscillator delivering a record-high 350-watt average output power, physicists at ETH Zurich set a new benchmark and pave the path toward even more powerful lasers. [28] But in new experiments by physicists at MIT and elsewhere, the opposite happens: When a pattern called a charge density wave in a certain material is hit with a fast laser pulse, a whole new charge density wave is created-a highly ordered state, instead of the expected disorder. [27] Scientists from Universität Hamburg have united the two research fields and succeeded in observing the emergence of ions in ultracold atoms. [26] Researchers at the Kirchhoff Institute for Physics of Heidelberg University recently succeeded in verifying so-called non-local quantum correlations between ultracold clouds of rubidium atoms. [25] Four decades after it was predicted, scientist create a skyrmion, and take one step towards efficient nuclear fusion. [24] While standard quantum hardware entangles particles in two states, the team has found a way to generate and entangle pairs of particles that each has 15 states. [23]

Comments: 41 Pages.

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[v1] 2019-11-13 07:55:01

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