It seems that both quantum error correction and quantum tomography are necessary for practical realization of quantum computing, since the
hardware needs to be verified for correctness in design, manufacture
and maintenance. Is that true? If yes, then since, according to Wiki,
quantum tomography is practically infeasible for more than a few
qubits due to exponentially increase of work with the number of qubits,
the practical infeasibility of quantum computing would be a direct consequence IMHO.
M. K. Shen
On Thursday, November 5, 2015 at 12:50:03 PM UTC-5, Mok-Kong Shen wrote:
It seems that both quantum error correction and quantum tomography are
necessary for practical realization of quantum computing, since the
hardware needs to be verified for correctness in design, manufacture
and maintenance. Is that true? If yes, then since, according to Wiki,
quantum tomography is practically infeasible for more than a few
qubits due to exponentially increase of work with the number of qubits,
the practical infeasibility of quantum computing would be a direct
consequence IMHO.
M. K. Shen
They have been trying to make a quantum computer for 20 years now. It
seems to be close not never a real functional quantum computer. There is always some problem with this or that. At some point you have question quantum theory that predicts a quantum computer. Entanglement of qubits is central to a quantum computer. To this date no one has done a successful experimental proof of entanglement of two particles or photons. It is
always a statistical averaging of many particles with the smoke and
mirrors of 30 percent random noise to satisfy a Bell test. Maybe we should pay more attention to the finer details of a Bell test. Perhaps Dr
Einstein was right when he said God does not throw dice.
"John Heath" <heathjohn2@gmail.com> wrote in message news:f6ac5152-c4b7-4ad7-83fd-89243bb24827@googlegroups.com...
On Thursday, November 5, 2015 at 12:50:03 PM UTC-5, Mok-Kong Shen wrote:
It seems that both quantum error correction and quantum tomography are
necessary for practical realization of quantum computing, since the
hardware needs to be verified for correctness in design, manufacture
and maintenance. Is that true? If yes, then since, according to Wiki,
quantum tomography is practically infeasible for more than a few
qubits due to exponentially increase of work with the number of qubits,
the practical infeasibility of quantum computing would be a direct
consequence IMHO.
M. K. Shen
They have been trying to make a quantum computer for 20 years now. It
seems to be close not never a real functional quantum computer. There is always some problem with this or that. At some point you have question quantum theory that predicts a quantum computer. Entanglement of qubits is central to a quantum computer. To this date no one has done a successful experimental proof of entanglement of two particles or photons. It is always a statistical averaging of many particles with the smoke and
mirrors of 30 percent random noise to satisfy a Bell test. Maybe we should pay more attention to the finer details of a Bell test. Perhaps Dr
Einstein was right when he said God does not throw dice.
The D-Wave system is probably the closest they will get to quantum
computing. See the discussion at,
http://www.sciphysicsforums.com/spfbb1/viewtopic.php?f=6&t=216
For Bell tests,
http://www.sciphysicsforums.com/spfbb1/viewtopic.php?f=6&t=212
Bell was wrong and Einstein was right after all.
"John Heath" <heathjohn2@gmail.com> wrote in message news:f6ac5152-c4b7-4ad7-83fd-89243bb24827@googlegroups.com...
On Thursday, November 5, 2015 at 12:50:03 PM UTC-5, Mok-Kong Shen wrote:
It seems that both quantum error correction and quantum tomography are
necessary for practical realization of quantum computing, since the
hardware needs to be verified for correctness in design, manufacture
and maintenance. Is that true? If yes, then since, according to Wiki,
quantum tomography is practically infeasible for more than a few
qubits due to exponentially increase of work with the number of qubits,
the practical infeasibility of quantum computing would be a direct
consequence IMHO.
M. K. Shen
They have been trying to make a quantum computer for 20 years now. It
seems to be close not never a real functional quantum computer. There is always some problem with this or that. At some point you have question quantum theory that predicts a quantum computer. Entanglement of qubits is central to a quantum computer. To this date no one has done a successful experimental proof of entanglement of two particles or photons. It is always a statistical averaging of many particles with the smoke and
mirrors of 30 percent random noise to satisfy a Bell test. Maybe we should pay more attention to the finer details of a Bell test. Perhaps Dr
Einstein was right when he said God does not throw dice.
The D-Wave system is probably the closest they will get to quantum
computing. See the discussion at,
http://www.sciphysicsforums.com/spfbb1/viewtopic.php?f=6&t=216
For Bell tests,
http://www.sciphysicsforums.com/spfbb1/viewtopic.php?f=6&t=212
Bell was wrong and Einstein was right after all.
On Friday, November 6, 2015 at 2:00:02 PM UTC-5, FrediFizzx wrote:photon it is in our frame of reference not the length contracted FoR of the photon. I say this as the test equipment to do a Bell test is in out FoR so the photon must conform to our FoR in order to test its polarization. With these conditions the photon
"John Heath" <heathjohn2@gmail.com> wrote in message news:f6ac5152-c4b7-4ad7-83fd-89243bb24827@googlegroups.com...
On Thursday, November 5, 2015 at 12:50:03 PM UTC-5, Mok-Kong Shen wrote:
It seems that both quantum error correction and quantum tomography are >> necessary for practical realization of quantum computing, since the
hardware needs to be verified for correctness in design, manufacture
and maintenance. Is that true? If yes, then since, according to Wiki,
quantum tomography is practically infeasible for more than a few
qubits due to exponentially increase of work with the number of qubits, >> the practical infeasibility of quantum computing would be a direct
consequence IMHO.
M. K. Shen
They have been trying to make a quantum computer for 20 years now. It seems to be close not never a real functional quantum computer. There is always some problem with this or that. At some point you have question quantum theory that predicts a quantum computer. Entanglement of qubits is
central to a quantum computer. To this date no one has done a successful experimental proof of entanglement of two particles or photons. It is always a statistical averaging of many particles with the smoke and mirrors of 30 percent random noise to satisfy a Bell test. Maybe we should
pay more attention to the finer details of a Bell test. Perhaps Dr Einstein was right when he said God does not throw dice.
The D-Wave system is probably the closest they will get to quantum computing. See the discussion at,
http://www.sciphysicsforums.com/spfbb1/viewtopic.php?f=6&t=216
For Bell tests,
http://www.sciphysicsforums.com/spfbb1/viewtopic.php?f=6&t=212
Bell was wrong and Einstein was right after all.
Not sure I would go as far to say Bell was wrong. His logic was sound. It is the way test results are interpreted. A photon being length contracted to a piece of paper has only the option of a x or y polarization. However in the case of an event with a
I have in the meantime quoted some IMHO remarkable passages on this
issue from a number of sources and posted that together with a few
tiny humble comments of mine at:
http://s13.zetaboards.com/Crypto/topic/7457176/1/
M. K. Shen
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