Modern Physics: Quantum Theory, Relativity, String Theory, and Beyond....

[fritzd]

---

Recent Progress in Quantum Physics more specifically in Quantum Optics.

Some really cool advances in Quantum Optics!
Anybody familiar with Quantum Entanglement and Quantum Mirrors?
No, sorry this has nothing to with the so called Quantum Pendant or any other similar radical hoaxes! This is the real stuff.

Trapped ions smash entanglement record
Trapped ions smash entanglement record - physicsworld.com



Physicists create a quantum mirror image
Physicists create a quantum mirror image - physicsworld.com



Trapped ions are one of the leading candidates for quantum computers. Quantum entanglement is within the interactions of these atoms is the key for quantum computation. The next progress is in quantum mirrors. It's even more interesting for me because of the authors of the Nature Physics publication that led to this news is the boss of the laboratory where i work in. Single spontaneous photon as a coherent beamsplitter for an atomic matter-wave : Nature Physics : Nature Publishing Group

Both developments, move us closer to quantum computers. The days of classical binary computation are numbered. Well, at lest, figuratively. Someday quantum computers will rule our computing technology. I couldn't even imagine what we would have when that time comes. I just hope I can live to witness the transition event. And more than that, I hope that my current research (Quantum Memory) will have a part/contribution to the technology.

[neshem]

ai naa ra diay thread for string theory..

Anyone who is not shocked of quantum theory does not understand it.
- Niels Bohr

[iTheo1875]

let's resurrect this thread. this is very interesting.

[iTheo1875]

I have a question here...

its about Quantum Superposition, di ba it says ... electrons exists in all its particular, theoretically possible states (or, configuration of its properties) simultaneously; but, when measured or observed, it gives a result corresponding to only one of the possible configurations (as described in interpretation of quantum mechanics).-wikipedia.

then why is it nga naa man siyay SPECIFIC location like why can't i see the object in other locations?

[fritzd]

I have a question here...

its about Quantum Superposition, di ba it says ... electrons exists in all its particular, theoretically possible states (or, configuration of its properties) simultaneously; but, when measured or observed, it gives a result corresponding to only one of the possible configurations (as described in interpretation of quantum mechanics).-wikipedia.

then why is it nga naa man siyay SPECIFIC location like why can't i see the object in other locations?

Because the normal macroscopic objects are too hot as a whole to display quantum effects. If you want to see quantum effects at a macroscopic scale, you have 2 options.

First, you can use the statistical nature of quantum mechanics. Have of your heard of quantum tunneling? This is very easy for atoms, electrons or anything sub-atomic but for huge objects, like cars, it's nearly impossible. Let's take for example, you want to tunnel a cow quantum mechanically through a wall. And take for example, there is 0.00000001% chance of tunneling a cow on a certain wall, then you need to through 100 billions cows on the wall to see at least one cow tunneling event.

Second, you can cool everything down. When matter gets very cold (close to 0 Kelvin), it's wavefunction extends drastically. At room temperature (300K), our(humans, cars, etc..) wavefunction localize into a particle like excitation, which is why we cannot observed exactly what you are pointing out in your question. https://www.istorya.net/forums/scienc...d-physics.html