Tag Archives | Photon


Physicists map conductivity change in transition from 3 to 2 dimensions

Scientists from the Moscow Institute Of Physics And Technology and Tulane University (New Orleans) have for the first time described the behavior of electrons in a previously unstudied analogue of graphene, two-dimensional niobium telluride, and, in the process, uncovered the nature of two-dimensionality effects on conducting properties. Their findings will help pave the way for […]

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Image captures light as both a particle and a wave

Quantum mechanics tells us that light can behave simultaneously as a particle or a wave, but it’s only possible to see one of these attributes at any given moment. Even though a variety of experiments have successfully observed both behaviors of light, they have never been able to observe both at the same time. Now, […]

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Quantum camera takes pic using only entangled photons

Using a new quantum imaging technique, a picture has been captured without the camera detecting the light that was used to illuminate the subject. Instead, the detector relies on entangled photons that have never touched the subject (in this case, a silhouette of a cat). Normally, an image of an object is obtained by sensing […]

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Researchers go beyond quantum limit

Scientists are capable of measuring the position of an object with unprecedented accuracy, but the Heisenberg uncertainty principle ultimately places a fundamental limit on such measurements (known as the standard quantum limit). Now, however, Caltech researchers have found a way to filter this quantum background “noise” and make measurements that go beyond the limits imposed […]

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Taming The Photon

In recent times, new types of light sources have been developed that emit photons one by one. Experiments with such emitters are motivated by plans for quantum computers or quantum information networks that use the quantum states of photons to process and transfer information. To work reliably, these quantum processing schemes require emission and absorption […]

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