Sentences with word «ultracold»

To explore this question, researchers at the Center for Quantum Dynamics performed experiments in which they confined a gas of ultracold atoms in two - dimensional traps which they created using focused laser beams.

A paper describing the research appears January 4, 2018 in the journal Nature along with a paper from a separate group from Germany that shows that a similar mechanism can be used to make a gas of ultracold atoms exhibit four - dimensional quantum Hall physics as well.

Such spin - polarized, dilute, and ultracold gases are important for spectroscopy, metrology, and atom optics.

And with ultracold molecules, you can get a huge variety of different states of matter, like superfluid crystals, which are crystalline, yet feel no friction, which is totally bizarre.

A team of physicists from MPQ, Caltech, and ICFO proposes the combination of nano - photonics with ultracold atoms for simulating quantum many - body systems and creating new states of matter.

The matter was a pair of ultracold atomic gases called Bose - Einstein condensates (BECs).

A Bose - Einstein condensate is a state of matter created by atoms at ultracold temperatures, close to absolute zero.

A very sensitive force - measuring technique uses ultracold rubidium atoms in an optical cavity as a mechanical oscillator.

Rice University atomic physicist Joe Whalen works on a laser cooling system for ultracold strontium gas.

Rydberg polarons are a new class of polarons in which the high - energy, far - orbiting electron gathers hundreds of atoms within its orbit as it moves through a dense, ultracold cloud.

In experiments with ultracold rubidium atoms MPQ scientists create magnetic quantum crystals made of gigantic Rydberg atoms.

Zwierlein's group sought to create ultracold molecules of sodium potassium, each consisting of a single sodium and potassium atom.

Quantum effects are necessarily at work at ultracold temperatures in the nano - kelvin regime.

Thousands of ultracold strontium atoms vibrate in a lattice of laser light inside this record - setting atomic clock, designed by researchers at the Joint Institute for Lab Astrophysics in partnership with the National Institute of Standards and Technology.

The latest analysis of measurements of the electrical properties of ultracold neutrons published in the scientific journal Physical Review X has led to surprising conclusions.

Scientists create JILA's quantum crystal by precisely overlapping two dense gases of ultracold potassium and rubidium atoms (left) to produce molecules that form an interconnected system (right), in which «spin» properties can migrate between molecules.

They then essentially glued the atoms together to form ultracold molecules, applying a magnetic field to prompt the atoms to bond — a mechanism known as a «Feshbach resonance,» named after the late MIT physicist Herman Feshbach.

Without meaning to, Esslinger's team created what amounts to an atomic analogue of this using optical trapping, in which criss - crossing laser beams are used to corral ultracold atoms.

We established superfluidity in a two - state mixture of ultracold fermionic atoms with imbalanced state populations.

This is sufficiently cheap» compared with ultracold reservoirs of gas, he says.

The trapping approach uses very cold particles, so - called ultracold neutrons, or UCNs.

This optical tour de force, reported in today's Nature, relies upon a weird quantum - mechanical trick induced by cross-hatched laser beams, as well as ultracold temperatures that force atoms in a tiny gas cloud to a virtual standstill.

One candidate for such a computer is a so - called optical lattice, in which ultracold atoms are coaxed by strategically placed laser beams into a grid arrangement,...

Because they have no internal resistance to flow, ultracold helium - 4 or helium - 3 slips through microscopic holes, flows effortlessly uphill, and flouts efforts to contain for study.

Quantum effects, the criticism went, are notoriously difficult to maintain in the lab, requiring ultracold temperatures and shielding to protect against even the mildest interference.

Although there are more traditional approaches to answering these questions — using particle accelerators, astrophysical observations, numerical simulations, and tools of condensed matter physics and chemistry — the extreme tunability and relative simplicity of ultracold matter experiments make them a compelling alternative.

LRO's early results have already caused a stir: The Diviner Lunar Radiometer Experiment sent back the first global temperature maps of the moon, revealing ultracold pockets in permanently shadowed portions of craters near the south pole.

When passing through the peculiar, ultracold collection of atoms known as a Bose - Einstein condensate, light can slow to a mere 38 miles an hour.

He carried out his research in the Laboratoire Kastler Brossel with 1997 Nobel Prize co-recipient Claude Cohen - Tannoudji, this time studying the hydrodynamics of ultracold quantum gases.

Within this science of ultracold chemistry, there is a sub-field that deals with «Efimov states,» named for Russian physicist Vitaly Efimov.

She and fellow U.C.B. physicist Jun Ye recently succeeded in making a gas of ultracold polar molecules of potassium and rubidium near the temperature of the quantum regime where Jin previously observed a fermionic condensate.

«One of the nice things about ultracold atoms is that you can think of them as model systems where you can play with quantum mechanics,» Jin says.

Using lasers, U.S. and Austrian physicists have coaxed ultracold strontium atoms into complex structures unlike any previously seen in nature.

I wonder once the front has retreated from salt water and sea mist that ultracold deep ice could refreeze fresh water and slow the breakup.

Now a team of theorists around Prof. Ignacio Cirac (MPQ, Garching) and Prof. Jeff Kimble (California Institute of Technology, Pasadena, USA) suggests a new set - up that integrates the advantages of ultracold atomic physics and nano - photonics to circumvent these limitations predicting lattice constants about ten times smaller than in a free space optical lattices and the possibility to mediate longer range interactions.

«Our observations, taken together with the observations using ultracold atoms, provide the first demonstration of higher - dimensional quantum Hall physics,» said Rechtsman.

JILA scientists first created ultracold molecules in 2008 and several years ago formed the first molecular crystal, in which the molecules swapped spins.

In a recent research, an international team of experimental and theoretical physicists at the Hong Kong University of Science and Technology (HKUST) and Peking University (PKU) reported the observation of an SPT phase for ultracold atoms using atomic quantum simulation.

A three - atom collision leading to diatomic rubidium is elucidated quantum mechanically at ultracold temperature.

Zwierlein's group chose to create ultracold molecules of sodium potassium, as this molecule is chemically stable and naturally resilient against reactive molecular collisions.

Worldwide unique new process for the generation and storage of ultracold neutrons developed using the TRIGA research reactor at Mainz University

«Our work predicted in theory a new type of SPT phase, which is beyond the traditional classification based on ten-fold ways, and observed in experiment such an exotic state in an engineered synthetic crystal with ultracold atoms,» said Xiong - Jun Liu, assistant professor at Peking University and co-author of the paper.

Another way of controlling inter-particle collisions at ultracold temperatures is to turn on an external magnetic field.

Now, scientists are taking the clouds of ultracold atoms into space.

The study of ultracold molecules is a science of its own.

He and his colleagues pointed two laser beams, each controlling an ultracold atom of sodium or caesium, at the same...

To create the molecules, JILA's Cornell and Peter Engels and Maren Mossman of Washington State University in Pullman will apply a magnetic field to ultracold atoms of potassium - 39.

«Physicists quantum simulate topological materials with ultracold atoms.»

«Moreover, owing to the advantages of the full controllability, we expect that the present work shall push forward future studies in ultracold atom experiments of interacting SPT phases, which are broadly discussed in theory but very hard to investigate in solid - state materials,» explained Gyu - Booong Jo, assistant professor at the HKUST Department of Physics and co-author of the paper.

«This work is indeed the first experimental realization of an SPT phase for ultracold atoms, which opens a great deal of possibilities to simulate and probe novel SPT physics.,» Prof Liu added.