- #1
Mal Cevalo
Hello,
In my free time, I've been learning about an eclectic range of topics (ie. French History, Kinetic Theory etc.). Most recently I've been focused on Quantum Mechanics, which happens to be most complex topic I've ever looked at. Typically I write up summaries after reading from various sources, however this time I'm a little worried my summary might not be accurate.
Would it be possible to run through my summary below and point out any factual errors? (not so worried about bad grammar or spelling as its only for me)
In 1905, Albert Einstein devised the Special Theory of Relativity, which postulates:
By 1935, it had become evident to Einstein, along with his colleagues Podolsky and Rosen, that Quantum Mechanics appeared to conflict with Special Relativity; with the trio expressing their concerns in the paper “Can Quantum-Mechanical Description of Physical Reality be Considered Complete?”
Their key concern was regarding a phenomenon now known as Quantum Entanglement. For entangled particles interact instantaneously with each other, when one is measured for its spin, resulting in the latter’s measurement having the opposite spin, if both are measured along the same axis.
Einstein et al referred to this as “spooky action at a distance” as Quantum Mechanics implied entangled particles could be separated by astronomical distances, without any impact on its instantaneity. This seems to breach the second postulate of Special Relativity, as it appears information is transmitted between the two particles faster than the speed of light.
To avoid what they saw as a breach of the Second Postulate. It was proposed that prior to separation, these entangled particles effectively pre-plan to have opposite spins when measured along the same axis, in what is referred to as “hidden information”.
It wasn’t until 1964, that John Bell devised a test, which could rule out “hidden information” as being the mechanism behind “spooky action at a distance”. All credible Bell test experiments that have since been undertaken have contradicted the "hidden information" explanation.
While instantaneous interaction between entangled particles seems to defy Special Relativity. Orthodox interpretations of Quantum Mechanics, do not consider this interaction to count as true information exchange, as the spin of the particle measured first is random.
All help is much appreciated : )
In my free time, I've been learning about an eclectic range of topics (ie. French History, Kinetic Theory etc.). Most recently I've been focused on Quantum Mechanics, which happens to be most complex topic I've ever looked at. Typically I write up summaries after reading from various sources, however this time I'm a little worried my summary might not be accurate.
Would it be possible to run through my summary below and point out any factual errors? (not so worried about bad grammar or spelling as its only for me)
In 1905, Albert Einstein devised the Special Theory of Relativity, which postulates:
1. There is no variation in laws of physics for all inertial frames of reference.
2. The speed of light in a vacuum is the universal speed limit of all objects and information.
2. The speed of light in a vacuum is the universal speed limit of all objects and information.
By 1935, it had become evident to Einstein, along with his colleagues Podolsky and Rosen, that Quantum Mechanics appeared to conflict with Special Relativity; with the trio expressing their concerns in the paper “Can Quantum-Mechanical Description of Physical Reality be Considered Complete?”
Their key concern was regarding a phenomenon now known as Quantum Entanglement. For entangled particles interact instantaneously with each other, when one is measured for its spin, resulting in the latter’s measurement having the opposite spin, if both are measured along the same axis.
Einstein et al referred to this as “spooky action at a distance” as Quantum Mechanics implied entangled particles could be separated by astronomical distances, without any impact on its instantaneity. This seems to breach the second postulate of Special Relativity, as it appears information is transmitted between the two particles faster than the speed of light.
To avoid what they saw as a breach of the Second Postulate. It was proposed that prior to separation, these entangled particles effectively pre-plan to have opposite spins when measured along the same axis, in what is referred to as “hidden information”.
It wasn’t until 1964, that John Bell devised a test, which could rule out “hidden information” as being the mechanism behind “spooky action at a distance”. All credible Bell test experiments that have since been undertaken have contradicted the "hidden information" explanation.
While instantaneous interaction between entangled particles seems to defy Special Relativity. Orthodox interpretations of Quantum Mechanics, do not consider this interaction to count as true information exchange, as the spin of the particle measured first is random.
All help is much appreciated : )