A Breakthrough in Optical Tweezers Technology: Capturing an Erbium Atom with 14 Valence Electrons Opens New Avenues for Quantum Science Research
A Breakthrough in Optical Tweezers Technology: Capturing an Erbium Atom with 14 Valence Electrons Opens New Avenues for Quantum Science ResearchA research team at the University of Innsbruck, Austria, has achieved a significant breakthrough in quantum science. They have, for the first time, successfully trapped a single erbium atom with 14 valence electrons using optical tweezers, publishing their findings in the November 26th issue of Physical Review Letters...
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Phonon Coupling - Electrons in CdSe, CdS Cores, and Shell Quantum Dots
Xu Chenyuan's StudyEditor | Xu Chenyuan's StudyWe found that peak CdS frequency affects excitationStrong dependence on energyBetween the experimental frequency of the CdSe+CdS combination band and the sum of the corresponding fundamental frequencyThere is still a huge differenceThis indicates that the main transition at high excitation energy is limited to the CdSe core or CdS shell, and therefore cannot enhance the binding band transition between the core and shellThe Raman intensity ratio of CdS to CdSe further supports this viewpoint. The Phonon of CdSeLO in the Lowest Exciton TransitionElectron phonon coupling is slightly weaker in core/shell structures than in pure CdSe quantum dotsThis is contrary to the expectation of the Frehlich coupling mechanism...
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Why is there such a significant difference in value between gold and iron, which are both composed of the same protons, neutrons, and electrons?
Gold and iron are metals with different values, but even children know that gold is relatively expensive. Otherwise, how could one say that an inch of time is an inch of gold? These two values have a huge difference, but the true essence is not much different, because there is no difference between the protons, neutrons, and electrons that make up gold and iron atoms!What are substances composed of?The electron should be the earliest particle found in the atom...
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