G
grey eminence
- Jan 1, 1970
- 0
In quantum mechanics, all the forces of nature are mediated by the
exchange of particles such as photons, and these particles must obey
this cosmic speed limit. So an action "here" can cause no effect "over
there" any sooner than it would take light to travel there in a
vacuum.
But two entangled particles can appear to influence one another
instantaneously, whether they're in the same room or at opposite ends
of the Universe.
Einstein called this ‘spooky action at a distance' - spooky because
there is no known mechanism for such an interaction, and because it
would entail that things can be affected by events which, in some
frame of reference, haven't happened yet.
Quantum entanglement occurs when two or more particles interact in a
way that causes their fates to become linked: It becomes impossible to
consider (or mathematically describe) each particle's condition
independently of the others'. Collectively they constitute a single
quantum state.
Austrian physicist Erwin Schrödinger in 1925 showed that if two
particles are prepared in a quantum state such that there is a
matching correlation between two ‘canonically conjugate' dynamical
quantities — quantities like position and momentum whose values
suffice to specify all the properties of a classical system — then
there are infinitely many dynamical quantities of the two particles
for which there exist similar matching correlations: every function of
the canonically conjugate pair of the first particle matches with the
same function of the canonically conjugate pair of the second
particle.
Thus system No. 1 ‘does not only know these two answers but a vast
number of others, and that with no mnemotechnical help whatsoever, at
least with none that we know of.'
http://www.colossalstorage.net/
exchange of particles such as photons, and these particles must obey
this cosmic speed limit. So an action "here" can cause no effect "over
there" any sooner than it would take light to travel there in a
vacuum.
But two entangled particles can appear to influence one another
instantaneously, whether they're in the same room or at opposite ends
of the Universe.
Einstein called this ‘spooky action at a distance' - spooky because
there is no known mechanism for such an interaction, and because it
would entail that things can be affected by events which, in some
frame of reference, haven't happened yet.
Quantum entanglement occurs when two or more particles interact in a
way that causes their fates to become linked: It becomes impossible to
consider (or mathematically describe) each particle's condition
independently of the others'. Collectively they constitute a single
quantum state.
Austrian physicist Erwin Schrödinger in 1925 showed that if two
particles are prepared in a quantum state such that there is a
matching correlation between two ‘canonically conjugate' dynamical
quantities — quantities like position and momentum whose values
suffice to specify all the properties of a classical system — then
there are infinitely many dynamical quantities of the two particles
for which there exist similar matching correlations: every function of
the canonically conjugate pair of the first particle matches with the
same function of the canonically conjugate pair of the second
particle.
Thus system No. 1 ‘does not only know these two answers but a vast
number of others, and that with no mnemotechnical help whatsoever, at
least with none that we know of.'
http://www.colossalstorage.net/