Sentences with phrase «hole pairs»

That could help reveal how the black holes paired up in the first place.

It was already known that light is able to create an electron - hole pair in this class of materials.

How two black holes paired should show through in their spins.

The study posits that the center of the Milky Way contains hundreds of black holes paired with stars and 10,000 isolated black holes.

Scouting out the locales where black hole pairs live allows astronomers to look for light produced in the collision.

But the gravitational disturbance from the black hole pair distorted spacetime, slightly squeezing one arm of the detector while stretching the other -LRB-

But some researchers question whether the clusters can produce as many black hole pairs as LIGO seems to see.

In this artist's conception, the newfound black hole pair appears in the foreground, emitting jets of matter that have been colored blue, while a third black hole emits jets that have been colored red.

For this reason, the galaxy - hole pairings seen by Carilli's team might not be representative of the ancient universe, in which case the question of which came first remains unanswered.

«When sunlight is absorbed, photo - excited electron − hole pairs are generated in the silicon and titanium oxide nanowires, which absorb different regions of the solar spectrum.

This device was first reported in the paper titled «Long - range coupling of electron - hole pairs in spatially separated organic donor - acceptor layers» written by H. Nakanotani at Kyushu University's Center for Organic Photonics and Electronics Research (OPERA) in Fukuoka, Japan, and colleagues and published online Feb. 26, 2016 in the journal Science Advances.

The most common explanation for black hole pairs with such «spin misalignment» is that they did not form from the binary evolution of isolated twin stars.

Various processes could contribute to the formation of black hole pairs, Berti says.

Observations of the trio demonstrate that swirling jets can help astronomers find hidden black hole pairs.

This field generated electron - hole pairs in the adjacent dots; these pairs recombine, producing photons, the team reports in the 10 June issue of Nature.

The energy costs associated with separating tightly bound excitons (photoinduced electron - hole pairs) and extracting free charges from highly disordered low - mobility networks represent fundamental losses for many low - cost photovoltaic technologies.

The excited electron and the resulting hole attract each other through the electrostatic Coulomb force, and if that attraction is strong enough, the electron - hole pair can be viewed as a quasiparticle — an «exciton» is born.

With only one tight pair known, he says, it was difficult to assess how common even tighter black hole pairs are, which are crucial in the hunt for gravitational waves — a subtle type of radiation predicted by Einstein's general theory of relativity.

When light shines on a semiconducting material such as TiO2, it generates either free negative (electrons) and positive (holes) charges or a bound neutral electron - hole pair, called an exciton.

«Researchers amplify the pulse and measure its height and from that figure out how much energy created the electron - hole pairs,» ORNL's David Radford said.

The light creates an electron - hole pair that subsequently migrates in opposing directions.

When a high - energy electron (a beta particle) is created during a double - beta decay, that electron will scatter off other electrons and create electron - hole pairs that move inside the germanium and create a pulse of charge inside the detector.

Making LIGO's merging black hole pairs, one conventional theory goes, would then require the «binary evolution» of two massive, low - metallicity stars that form as a pair.

Light creates an electron - hole pair.

«The number of electron - hole pairs that are created is proportional to the energy that was released.»

Very heavy, misaligned black hole pairs could prove to be very rare, strengthening the case that most mergers come from isolated systems of binary stars — or they could prove common, suggesting denser, more dynamical origins.

The spontaneous conversion of excitons (bound electron - hole pairs) to free carriers via these layer - edge states appears to be the key to improving the photovoltaic and light - emitting thin - film layered materials.

They were able to show that thin films have an intrinsic mechanism for dissociation of the strongly bound electron - hole pairs (excitons) to long - lived free - carriers provided by lower energy states at the edges of the layered perovskites.

This would be the case only if the closest stars were scattering off a black hole pair and slingshotted away, just as NASA slingshots space probes around other planets to move them more quickly through the solar system.

NGC 1600 suggests that a key characteristic of a galaxy with binary black holes at its core is that the central, star - depleted region is the same size as the sphere of influence of the central black hole pair, Ma said.

These electron - hole pairs are called bright excitons.

«If you design your molecule in such a way that, instead of cooling to a lower state, you generate two electron - hole pairs, you don't lose as much energy as you would if you let the molecules relax and release the energy as heat,» said Johnson.

The electron - hole pairing is called an exciton.

In the splitting process, a composite particle composed of an electron, which has a negative charge, and its partner hole — a vacant electron position in a material's atomic structure that behaves like a particle in carrying a positive charge — rapidly converts into two electron - hole pairs.

In these images, the initial spin - singlet exciton state (left), which features electron - hole pairs, splits into a pair of spin - triplet excitons (right).

Those predictions can only be possible, though, if the electron - hole pairs in the sample behave as wavelike objects moving throughout the whole crystal like waves in an ocean.

The study concludes that in order to efficiently double these electron - hole pairs, the sampled material should display a specific kind of symmetry, or repeated combinations of molecules, within its crystal structure — just as a room's floor can display a multitude of simple, repeating patterns using the same tiles.

«In all known semiconductors and semiconductor nanostructures, the lowest energy state for a bound electron - hole pair is a «dark» state,» said Efros.

Simulations showed that had that black hole pair been spiraling inward for 13.7 billion years (the age evolutionists claim for the universe), they must have started out only 0.2 of an astronomical unit apart.30 They would have been even closer if the universe is younger.

Where the two semiconductor layers met, they formed an atomically sharp heterostructure called a p — n junction, which generated a photovoltaic response by separating electron — hole pairs that were generated by light.

In this paper an electron — hole pair is created by band - gap excitation of NiO nanoparticles and the dynamics of the electron and the hole is followed until their recombination.

Recently he discovered that single photons can create multiple electron - hole pairs in carbon - nanotube photodiodes, suggesting a new strategy for enhancing efficiency in photovoltaic devices.