### Is the universe a hologram?

Describing the universe requires fewer dimensions than we might think. New calculations show that this may not just be a mathematical trick, but a fundamental feature of space itself.

Describing the universe requires fewer dimensions than we might think. New calculations show that this may not just be a mathematical trick, but a fundamental feature of space itself.

Apr 27, 2015
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Mathematics

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In the quantum world, the famous Heisenberg uncertainty principle bounds the product of the variances of two incompatible observables such as the position and the momentum of a particle by the Planck constant. Heisenberg, ...

Jan 05, 2015
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Quantum Physics

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Here's a nice surprise: quantum physics is less complicated than we thought. An international team of researchers has proved that two peculiar features of the quantum world previously considered distinct ...

Dec 19, 2014
in
Quantum Physics

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An international team of physicists has shown that the mass ratio between protons and electrons is the same in weak and in very strong gravitational fields. Their study, which was partly funded by the FOM ...

Sep 19, 2014
in
General Physics

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In Innsbruck, Austria, a team of physicists led by Francesca Ferlaino experimentally observed how the anisotropic properties of particles deform the Fermi surface in a quantum gas. The work published in Science provid ...

Sep 18, 2014
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Quantum Physics

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(Phys.org) —Einstein's equivalence principle states that an object in gravitational free fall is physically equivalent to an object that is accelerating with the same amount of force in the absence of gravity. ...

(Phys.org) —In quantum physics, momentum and position are an example of conjugate variables. This means they are connected by Heisenberg's Uncertainty Principle, which says that both quantities cannot be ...

Jun 27, 2014
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Quantum Physics

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(Phys.org) —Caltech researchers have found a way to make measurements that go beyond the limits imposed by quantum physics.

May 15, 2014
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Quantum Physics

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Nearly 90 years after Werner Heisenberg pioneered his uncertainty principle, a group of researchers from three countries has provided substantial new insight into this fundamental tenet of quantum physics ...

Apr 29, 2014
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Quantum Physics

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(Phys.org) —One of the defining properties of metals is that, the hotter the metal, the worse it conducts electricity. But while most metals obey this inverse relationship between temperature and conductivity ...

(Phys.org) —A team of researchers working in Australia has used "squeezed light" to enhance the sharpness of images produced using photonic force microscopy. In their paper published in Physical Review Le ...

(Phys.org) —A team of physicists is challenging the very limits of Heisenberg's famous uncertainty principle by measuring quantum particles with unprecedented accuracy.

Feb 05, 2014
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Quantum Physics

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Researchers at the Georgia Institute of Technology want to put your signature up in lights – tiny lights, that is. Using thousands of nanometer-scale wires, the researchers have developed a sensor device ...

Aug 11, 2013
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Optics & Photonics

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Researchers at the University of Southampton have taken a significant step in a project to unravel the secrets of the structure of our Universe.

May 30, 2013
in
General Physics

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