Archives for Physics
Group Velocity and Phase Speed in deBrogle
Also read - deBroglie phase speed for material particle's wave
Time Travel Into the Future
There are two ways that one can legitimately travel into the future. Method 1 - Moving Objects Age Slower Thanks to Einstein's work on the nature of time, there is…
deBroglie Matter Waves–Some calculations utilizing the wavelike nature of matter
Probably the most startling revelation of Quantum Theory was the postulate that all particles have a waviness to them. Initially, when this was proposed for photons, physicist were more open…
What quantum entanglement is not
Quantum Entanglement and the Sock Pair I recently found a ‘highly upvoted’ answer on quora around the question – How exactly does entanglement work? How can a (measurement on a)…
How does an alpha particle get out of the nucleus?
Alpha particles do not have enough energy to leave the nucleus of an ; Yet, they somehow are able to set themselves free. This is due to the uncertainty energy…
The Failure of Ether, Constancy of the speed of light
Light, it was already known, moved at a constant speed. If light was moving at a constant speed, it begged the question - constant relative to what? That something was…
Quantum Computer Calculations, Quantum Computing Executive Workshop
As discussed in our live quantum computing workshop, the result of a quantum computation is probabilistic. However, in certain cases, it is fully deterministic , as in the case of…
Cloning Quantum Information
Classical information can be easily cloned. When you xerox something, or forward an email, you are effectively cloning classical information. Quantum information, in contrast, is inherently private. There is no…
The physics may be theoretical, but the fun is real–Teaching Physics to Medical Students
I was fortunate enough to teach physics this summer to advanced undergraduates making their way to medical ; One thing that struck me was how how much teaching has so…
Alternative explanations for the redshift of galaxies
The ‘Tired Photons’ Hypothesis The 'tired photons' hypothesis is in direct contrast to the Doppler hypothesis. It states that as photons travel through space, they experience collisions with interstellar matter…