A record quantum entanglement: 103 dimensions. An example of intensity distributions belonging to different modes of photons.
Each of these modes corresponds to one of the distinguishable states that were entangled in the experiment. (Credit: Krenna et al.) An international team of researchers has created an entanglement of 103 dimensions with only two photons, beating the previous record of 11 dimensions. The discovery could represent an advance toward toward better encryption of information and quantum computers with much higher processing speeds, according to a statement by the researchers. Until now, to increase the “computing” capacity of these particle systems, scientists have mainly turned to increasing the number of qubits (entangled particles), up to 14 particles. The research team was directed by Anton Zeilinger and Mario Krenn from the Institute for Quantum Optics and Quantum Information of the Austrian Academy of Sciences. “This high dimension quantum entanglement offers great potential for quantum information applications. - Simple Harmonic (and non-harmonic) Motion § Harvard Natural Sciences Lecture Demonstrations.
[S | t | ★★★★] keywords: simple harmonic motion, periodic motion, quantum revival, aliasing What it shows: Fifteen uncoupled simple pendulums of monotonically increasing lengths dance together to produce visual traveling waves, standing waves, beating, and random motion.
One might call this kinetic art and the choreography of the dance of the pendulums is stunning! PHYS 101/102 #1: Electromagnetic Waves. The Electromagnetic Spectrum.
Wave propagation. Making Waves. Synchronized waves. Harmonic motion. Oscillations. Pendulum Waves. Microwaves. Cosmic waves. How Bacteria Could Generate Radio waves. Can bacteria generate radio waves?
On the face of it, this seems an unlikely proposition. Natural sources of radio waves include lightning, stars and pulsars while artificial sources include radar, mobile phones and computers. This is a diverse list. So it’s hard to see what these things might have in common with bacteria that could be responsible for making radio waves. But today, Allan Widom at Northeastern University in Boston and a few pals, say they’ve worked out how it could be done.
They point out that many types of bacterial DNA take the form of circular loops. Widom and co calculate that the transition frequencies between these energy levels correspond to radio signals broadcast at 0.5, 1 and 1.5 kilohertz. Let’s make one thing clear: this is a controversial area of science. However, one of the criticisms of the work was that there is no known mechanism by which bacteria can generate radio waves. That means Widom and co may be able to kickstart more work in this area.
Shock-waves. Adaptive waves. Resonance Physics. Wave patterns. Wave anomalies. Quantum waves. Electromagnetic waves. Wave art > Esthetics. Brain waves. Wave feedback. Particle waves. Waves in fluids. Sound Waves.