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LAUGHED OUT OF COURT
- tvanflandern
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21 years 8 months ago #5187
by tvanflandern
Replied by tvanflandern on topic Reply from Tom Van Flandern
<BLOCKQUOTE id=quote><font size=2 face="Verdana, Arial, Helvetica" id=quote>quote:<hr height=1 noshade id=quote>I appears to me that you may have been premature in declaring that PE can't be used to transfer information.<hr height=1 noshade id=quote></BLOCKQUOTE id=quote></font id=quote><font face="Verdana, Arial, Helvetica" size=2 id=quote>
It was not my declaration. That is the mainstream opinion of the field of physics.
<BLOCKQUOTE id=quote><font size=2 face="Verdana, Arial, Helvetica" id=quote>quote:<hr height=1 noshade id=quote>The binary control is preset to stop the clocks if a "Change of State" is detected. It doesn't matter what state the particles are in only that they undergo a change of state.<hr height=1 noshade id=quote></BLOCKQUOTE id=quote></font id=quote><font face="Verdana, Arial, Helvetica" size=2 id=quote>
You cannot detect a change of state without observing the particle. Any attempt to observe it results in a specific state appearing for both members of the pair. But the assignment for the distant member of the pair will still not be known until it is observed. There is nothing "automatic" that is possible in entanglement experiments.
A lot of people have thought hard about how one might use entanglement to send a message. No one has found a way yet. Whether or not one is found in the future, we can be certain it won't be any simple, obvious process. -|Tom|-
It was not my declaration. That is the mainstream opinion of the field of physics.
<BLOCKQUOTE id=quote><font size=2 face="Verdana, Arial, Helvetica" id=quote>quote:<hr height=1 noshade id=quote>The binary control is preset to stop the clocks if a "Change of State" is detected. It doesn't matter what state the particles are in only that they undergo a change of state.<hr height=1 noshade id=quote></BLOCKQUOTE id=quote></font id=quote><font face="Verdana, Arial, Helvetica" size=2 id=quote>
You cannot detect a change of state without observing the particle. Any attempt to observe it results in a specific state appearing for both members of the pair. But the assignment for the distant member of the pair will still not be known until it is observed. There is nothing "automatic" that is possible in entanglement experiments.
A lot of people have thought hard about how one might use entanglement to send a message. No one has found a way yet. Whether or not one is found in the future, we can be certain it won't be any simple, obvious process. -|Tom|-
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21 years 7 months ago #3455
by Mac
Replied by Mac on topic Reply from Dan McCoin
tom,
I concur. I had a simular reply on another site. I was unaware that monitoring the particle would trigger the flip/flop and break the entanglement.
Thanks.
I concur. I had a simular reply on another site. I was unaware that monitoring the particle would trigger the flip/flop and break the entanglement.
Thanks.
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- 1234567890
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21 years 7 months ago #5191
by 1234567890
Replied by 1234567890 on topic Reply from
Dr. Flandern,
even if we interpret time dilation and length contraction under LR,
how can this possibly work? The atoms of which the watches and
rulers are comprised would only be contracted in the direction of movement- now, help me out here but how does nature retain its
functionality when matter is distorted in such a disproportionate fashion?
even if we interpret time dilation and length contraction under LR,
how can this possibly work? The atoms of which the watches and
rulers are comprised would only be contracted in the direction of movement- now, help me out here but how does nature retain its
functionality when matter is distorted in such a disproportionate fashion?
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21 years 7 months ago #3473
by tvanflandern
Replied by tvanflandern on topic Reply from Tom Van Flandern
<BLOCKQUOTE id=quote><font size=2 face="Verdana, Arial, Helvetica" id=quote>quote:<hr height=1 noshade id=quote>even if we interpret time dilation and length contraction under LR, how can this possibly work? The atoms of which the watches and rulers are comprised would only be contracted in the direction of movement- now, help me out here but how does nature retain its
functionality when matter is distorted in such a disproportionate fashion?<hr height=1 noshade id=quote></BLOCKQUOTE id=quote></font id=quote><font face="Verdana, Arial, Helvetica" size=2 id=quote>
First, even in SR, there is never any distortion, contraction, or dilation in the observer's own frame. So it is impossible to "see" these effects in one's own frame. They can only be seen as effects of other frames with high relative speeds. But observers in those other frames see everything as normal and things in our frame as distorted.
In LR, the matter is much simpler. There is no real contraction at all. This is because there is no requirement that the speed of light will be c in all frames.
If we are in a frame moving at speed v relative to the local gravity field and approaching a light source therein, then the speed of light from the local gravity field into our frame will be c+v. Receding light sources will have speed c-v.
The definition of the meter is currently tied to the speed of light, being approximately the distance light travels in 3.3 ns. If the speed of light is not c but we assume that it is, then derived lengths will be different, even though nothing physical has changed dimensions. That is all length contraction is in LR -- the illusion that distances in the direction of motion have contracted and time has slowed so as to keep the speed of light equal to c. -|Tom|-
functionality when matter is distorted in such a disproportionate fashion?<hr height=1 noshade id=quote></BLOCKQUOTE id=quote></font id=quote><font face="Verdana, Arial, Helvetica" size=2 id=quote>
First, even in SR, there is never any distortion, contraction, or dilation in the observer's own frame. So it is impossible to "see" these effects in one's own frame. They can only be seen as effects of other frames with high relative speeds. But observers in those other frames see everything as normal and things in our frame as distorted.
In LR, the matter is much simpler. There is no real contraction at all. This is because there is no requirement that the speed of light will be c in all frames.
If we are in a frame moving at speed v relative to the local gravity field and approaching a light source therein, then the speed of light from the local gravity field into our frame will be c+v. Receding light sources will have speed c-v.
The definition of the meter is currently tied to the speed of light, being approximately the distance light travels in 3.3 ns. If the speed of light is not c but we assume that it is, then derived lengths will be different, even though nothing physical has changed dimensions. That is all length contraction is in LR -- the illusion that distances in the direction of motion have contracted and time has slowed so as to keep the speed of light equal to c. -|Tom|-
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- 1234567890
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21 years 7 months ago #3710
by 1234567890
Replied by 1234567890 on topic Reply from
<BLOCKQUOTE id=quote><font size=2 face="Verdana, Arial, Helvetica" id=quote>quote:<hr height=1 noshade id=quote>
<BLOCKQUOTE id=quote><font size=2 face="Verdana, Arial, Helvetica" id=quote>quote:<hr height=1 noshade id=quote>even if we interpret time dilation and length contraction under LR, how can this possibly work? The atoms of which the watches and rulers are comprised would only be contracted in the direction of movement- now, help me out here but how does nature retain its
functionality when matter is distorted in such a disproportionate fashion?<hr height=1 noshade id=quote></BLOCKQUOTE id=quote></font id=quote><font face="Verdana, Arial, Helvetica" size=2 id=quote>
First, even in SR, there is never any distortion, contraction, or dilation in the observer's own frame. So it is impossible to "see" these effects in one's own frame. They can only be seen as effects of other frames with high relative speeds. But observers in those other frames see everything as normal and things in our frame as distorted.
In LR, the matter is much simpler. There is no real contraction at all. This is because there is no requirement that the speed of light will be c in all frames.
If we are in a frame moving at speed v relative to the local gravity field and approaching a light source therein, then the speed of light from the local gravity field into our frame will be c+v. Receding light sources will have speed c-v.
The definition of the meter is currently tied to the speed of light, being approximately the distance light travels in 3.3 ns. If the speed of light is not c but we assume that it is, then derived lengths will be different, even though nothing physical has changed dimensions. That is all length contraction is in LR -- the illusion that distances in the direction of motion have contracted and time has slowed so as to keep the speed of light equal to c. -|Tom|-
<hr height=1 noshade id=quote></BLOCKQUOTE id=quote></font id=quote><font face="Verdana, Arial, Helvetica" size=2 id=quote>
I guess the difference you are stating between SR and LR is that of simultaneity. In SR, the contractions and dilations as observed by the "stationary" frame are not physically real but an illusion created by the non-simultaneity of the events. In LR, the optical illusion is happening in absolute space-time.
<BLOCKQUOTE id=quote><font size=2 face="Verdana, Arial, Helvetica" id=quote>quote:<hr height=1 noshade id=quote>even if we interpret time dilation and length contraction under LR, how can this possibly work? The atoms of which the watches and rulers are comprised would only be contracted in the direction of movement- now, help me out here but how does nature retain its
functionality when matter is distorted in such a disproportionate fashion?<hr height=1 noshade id=quote></BLOCKQUOTE id=quote></font id=quote><font face="Verdana, Arial, Helvetica" size=2 id=quote>
First, even in SR, there is never any distortion, contraction, or dilation in the observer's own frame. So it is impossible to "see" these effects in one's own frame. They can only be seen as effects of other frames with high relative speeds. But observers in those other frames see everything as normal and things in our frame as distorted.
In LR, the matter is much simpler. There is no real contraction at all. This is because there is no requirement that the speed of light will be c in all frames.
If we are in a frame moving at speed v relative to the local gravity field and approaching a light source therein, then the speed of light from the local gravity field into our frame will be c+v. Receding light sources will have speed c-v.
The definition of the meter is currently tied to the speed of light, being approximately the distance light travels in 3.3 ns. If the speed of light is not c but we assume that it is, then derived lengths will be different, even though nothing physical has changed dimensions. That is all length contraction is in LR -- the illusion that distances in the direction of motion have contracted and time has slowed so as to keep the speed of light equal to c. -|Tom|-
<hr height=1 noshade id=quote></BLOCKQUOTE id=quote></font id=quote><font face="Verdana, Arial, Helvetica" size=2 id=quote>
I guess the difference you are stating between SR and LR is that of simultaneity. In SR, the contractions and dilations as observed by the "stationary" frame are not physically real but an illusion created by the non-simultaneity of the events. In LR, the optical illusion is happening in absolute space-time.
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21 years 7 months ago #3828
by Mac
Replied by Mac on topic Reply from Dan McCoin
Tom,
There seems to be some ambiguity regarding the ability to communicate via particle entanglement.
Here are acouple and I have seen several other even more pointed.
Extracts:
*****************
It is quite possible to trasmit data as long as we are prepared to destroy in the process. Bob was then able to use this information and his half of the entangled beam to create an exact copy of Alice's original beam.
******************
********
The discussion obviously has to move beyond photons and singlets to include atoms and ions. Recent work in Paris where progress has been made in the macrscopic direction by entangling pairs of atoms for the first time. Previously, physicists obtained entangled particles as a by-product of some random or probabilistic process, such as the production of two correlated photons a phenomenon that occasionally occurs when a single photon passes through a special crystal. Though previously only two-state quantum systems such as the polarisation of a photon had been teleported this new research should allow all quantum states to be teleported. In their "deterministic entanglement" process, the researchers trap a pair of beryllium ions in a magnetic field. Using a predetermined sequence of laser pulses, they entangle one ion's internal spin to its external motion, and then entangle the motion to the spin of the other atom. The group believes that it will be able to entangle multiple ions with this process. Now E. Hagley et al, using rubidium atoms prepared in circular Rydberg states (which means the outer electrons of the atom have been excited to very high energy states and are far from the nucleus in circular orbits), have shown quantum mechanical entanglement at the level of atoms. .[Phys.Rev. Lett. 79:1]. There is talk that before long quantum mechanical entanglement may be demonstrated for molecules and perhaps even larger entities.
**************
Others discuss the creation of particle entanglement linked computers and the fact that some steps have been achieved.
There seems to be some ambiguity regarding the ability to communicate via particle entanglement.
Here are acouple and I have seen several other even more pointed.
Extracts:
*****************
It is quite possible to trasmit data as long as we are prepared to destroy in the process. Bob was then able to use this information and his half of the entangled beam to create an exact copy of Alice's original beam.
******************
********
The discussion obviously has to move beyond photons and singlets to include atoms and ions. Recent work in Paris where progress has been made in the macrscopic direction by entangling pairs of atoms for the first time. Previously, physicists obtained entangled particles as a by-product of some random or probabilistic process, such as the production of two correlated photons a phenomenon that occasionally occurs when a single photon passes through a special crystal. Though previously only two-state quantum systems such as the polarisation of a photon had been teleported this new research should allow all quantum states to be teleported. In their "deterministic entanglement" process, the researchers trap a pair of beryllium ions in a magnetic field. Using a predetermined sequence of laser pulses, they entangle one ion's internal spin to its external motion, and then entangle the motion to the spin of the other atom. The group believes that it will be able to entangle multiple ions with this process. Now E. Hagley et al, using rubidium atoms prepared in circular Rydberg states (which means the outer electrons of the atom have been excited to very high energy states and are far from the nucleus in circular orbits), have shown quantum mechanical entanglement at the level of atoms. .[Phys.Rev. Lett. 79:1]. There is talk that before long quantum mechanical entanglement may be demonstrated for molecules and perhaps even larger entities.
**************
Others discuss the creation of particle entanglement linked computers and the fact that some steps have been achieved.
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