News tagged with wave mechanics
Does the quantum wave function represent reality?
(Phys.org) -- At the heart of quantum mechanics lies the wave function, a probability function used by physicists to understand the nanoscale world. Using the wave function, physicists can calculate a system's ...
Apr 25, 2012 |
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Mechanical motion rectifier leads to better energy harvesting
(Phys.org) -- Mechanical energy is all around us, whether in the form of a vehicle's vibrations, ocean waves, or vibrating train tracks. However, much of this energy is irregular and oscillatory - for example, road bumps ...
Apr 25, 2012 |
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Exerting better control over matter waves
(PhysOrg.com) -- “The concept of matter waves is at the heart of quantum mechanics,” Oliver Morsch tells PhysOrg.com. “At the beginning of the last century, scientists discovered that solid particles could exhibit proper ...
Mar 27, 2009 |
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Rice lab mimics Jupiter's Trojan asteroids inside a single atom
Rice University physicists have gone to extremes to prove that Isaac Newton's classical laws of motion can apply in the atomic world: They've built an accurate model of part of the solar system inside a single ...
Jan 24, 2012 |
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Primordial weirdness: Did the early universe have 1 dimension?
(PhysOrg.com) -- Did the early universe have just one spatial dimension? That's the mind-boggling concept at the heart of a theory that University at Buffalo physicist Dejan Stojkovic and colleagues proposed in 2010.
Apr 20, 2011 |
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Photons led astray: Investigating the random motion of quantum particles
(PhysOrg.com) -- Life would sometimes be so much easier if we were quantum particles. For example, if we were trying to find our way out of a strange town allowing chance telling us which way to go at every ...
Feb 23, 2010 |
5 / 5 (9) |
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Most precise test yet of Einstein's gravitational redshift
(PhysOrg.com) -- While airplane and rocket experiments have proved that gravity makes clocks tick more slowly - a central prediction of Albert Einstein's general theory of relativity - a new experiment in ...
Feb 17, 2010 |
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Scientists first to trap light and sound vibrations together in nanocrystal
(PhysOrg.com) -- Researchers at the California Institute of Technology have created a nanoscale crystal device that, for the first time, allows scientists to confine both light and sound vibrations in the ...
Oct 26, 2009 |
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Catching the lightwave: Nano-mechanical sensors 'wired' by photonics
As researchers push towards detection of single molecules, single electron spins and the smallest amounts of mass and movement, Yale researchers have demonstrated silicon-based nanocantilevers, smaller than ...
Apr 26, 2009 |
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Paper stirs up controversy over the nature of the quantum wave function
(Phys.org) -- Back in November, a paper posted to a preprint server arXiv by three British physicists prompted some heated debate regarding the nature of the quantum wave function, a probability function that p ...
May 09, 2012 |
4.3 / 5 (23) |
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A new 'lens' for looking at quantum behavior
(PhysOrg.com) -- In a paper published in Physical Review Letters, researchers Daniel Terno (Macquarie University, Australia) and Radu Ionicioiu (Institute of Quantum Computing, Canada) provide a new perspe ...
Dec 14, 2011 |
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Seeing sound: Team develops noninvasive method to visualise sound propagation
High-performance loudspeaker manufacturers have been able to improve sound quality dramatically over the years, but still face the issue of dead spots.
Nov 08, 2011 |
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How long does a tuning fork ring? 'Quantum-mechanics' solve a very classical problem
Austrian and German researchers at the University of Vienna and Technische Universitaet Muenchen have solved a long-standing problem in the design of mechanical resonators: the numerical prediction of the ...
Mar 08, 2011 |
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Healthy ears hear the first sound, ignoring the echoes
Voices carry, reflect off objects and create echoes. Most people rarely hear the echoes; instead they only process the first sound received. For the hard of hearing, though, being in an acoustically challenging ...
Medicine & Health / Neuroscience
Aug 26, 2010 |
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Quantum dynamics of matter waves reveal exotic multibody collisions
At extremely low temperatures atoms can aggregate into so-called Bose Einstein condensates forming coherent laser-like matter waves. Due to interactions between the atoms fundamental quantum dynamics emerge ...
May 14, 2010 |
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