Sentences with phrase «matter wave»

And with recent advances in laser and matter wave technology, the science is finally at the stage at which experimentation can verify theory.

«Frst demonstration of matter wave technique that could cool molecules.»

The team at Southampton has demonstrated the principle of using matter wave interference to cool atoms.

A directional beam of recoiling atoms was built up by matter wave amplification.

Matter wave tractor beams could be made with beams of electrons, Novitsky says.

Novitsky and colleagues performed theoretical calculations to show that such matter waves could produce a pulling effect similar to light or sound waves.

But «the idea of doing this with matter waves is really groovy,» says physicist David Grier of New York University, who was not involved with the research.

«So these molecules would no longer run around like billiard balls, but move as quantum mechanical matter waves.

The pulsed output coupling can be run at such a rate that the extracted atomic wave packets strongly overlap, forming a highly directional, quasi-continuous matter wave.

The difference in force imparts a measurable shift in the final state of the two matter waves when they recombine, creating an interference pattern.

«This Bose - Einstein - condensate moves as a gigantic matter wave.»

«These are the thinnest possible diffraction masks for matter wave optics.

Using the new approach, which harnesses the quantum interference of matter waves, the team was able to cool a sample of already - cold Rubidium down close to the fundamental temperature limit of laser cooling.

In response, U.S. scientists are developing new ways to circumvent blocked GPS signals using matter waves to measure acceleration.

But rather than light or sound, «we have something more elusive» — namely, matter waves.

Thus imprinted, the BEC's atoms formed a matter wave that traveled 160 microns before hitting the second BEC, which absorbed the atoms.

The cooling technique is based on matter wave interferometry, in which an atom (the matter wave) is placed into a superposition of states by a laser pulse.

Researchers from the University of Southampton have demonstrated for the first time a new laser cooling method, based upon the interference of matter waves, that could be used to cool molecules.

As a result, the BEC enters a so - called superposition, meaning the matter wave is simultaneously there and not there.

The laser caused the matter wave to coalesce (dump atoms) inside the second BEC, forcing the surrounding atoms to radiate like antennas and reproduce the original pulse.

By changing where the matter wave coalesced, Hau's group could alter the properties of the restored pulse, suggesting the technology could be used to manipulate optical signals, perhaps helping to realize quantum schemes for ultrasecure communications, Hau says.

The matter wave can not distinguish between the BECs, because the superposition of the first BEC means that it is partly in the same pristine, undisturbed condition as the second one, says Michael Fleischhauer of the Technical University of Kaiserslautern in Germany in an editorial accompanying the Harvard team's report, published online February 7 by Nature.

The devices split these matter waves in two and send each part in opposite directions before bringing them back together.

The pulses split the «matter wave» associated with each atom into a superposition of two energy states, each of which has a different velocity and reaches a different height — 60 or 90 centimeters — before falling back.

The matter wave that rises farthest has a greater separation from the tungsten cylinders, and thus senses a slightly different gravitational pull.

Their matter waves will spread out and overlap with one another, eventually coordinating themselves to behave as if they were one big «superatom.»