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Flipping an Egg Carton of Light Traps Giant Atoms

By Guest PostDecember 27, 2011Scienceadvanced applications, airport scanners, egg carton, electrons, georg raithel, kelly younge, laser beams, laser light, lattice hills, optical lattice, quantum computing, rydberg atoms, sarah anderson, solve a problem, terahertz imaging, trapping efficiency, unique way, university of michigan

ANN ARBOR, Mich.— In an egg carton of laser light, University of Michigan physicists can trap giant Rydberg atoms with up to 90 percent efficiency, an achievement that could advance quantum computing and terahertz imaging, among other applications.

Highly excited Rydberg atoms can be 1,000 times larger than their ground state counterparts. Nearly ionized, they cling to faraway electrons almost beyond their reach. Trapping them efficiently is an important step in realizing their potential, the researchers say.

Here’s how they did it: (more…)

For the First Time Ever, Scientists Watch an Atom’s Electrons Moving in Real Time

By Guest PostAugust 7, 20106 commentsScienceabdallah azzeer, atom, attosecond absorption spectroscopy, berkeley lab, electron motion, electrons, eleftherios goulielmakis, garching, graham fleming, krypton atom, laser light, lawrence berkeley national laboratory, max planck institute, mpq, oscillations, quantum optics, robin santra, stephen leone, zhi-heng loh

An international team of scientists led by groups from the Max Planck Institute of Quantum Optics (MPQ) in Garching, Germany, and from the U.S. Department of Energy’s Lawrence Berkeley National Laboratory and the University of California at Berkeley has used ultrashort flashes of laser light to directly observe the movement of an atom’s outer electrons for the first time.

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Flipping an Egg Carton of Light Traps Giant Atoms

For the First Time Ever, Scientists Watch an Atom’s Electrons Moving in Real Time