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Home Jack Sarfatti's Blog Latest on Demetrios Kalamides Entanglement SIgnaling Gedankenexperiment June 1, 2013 V5

OK, here is a simple case - not same as Kalamidas mind you - that seems to be outside the rules of orthodox quantum theory.

Alice the receiver has an ordinary orthodox quantum bit with base states |0> & |1> for a given orientation of her apparatus which never changes in the experiment. Bob the sender has two distinguishable non-orthogonal Glauber coherent eigenstates |z> and |w> of the non-Hermitian observable boson destruction operator a, where z and w are complex numbers. Right at this point we have violated one of the axioms of orthodox quantum theory in a factual way since Glauber states are facts.

Suppose we have the entangled state

|A,B> = (1/2)^1/2[|0>|z> + |1>|w>]

then using the orthodox Born probability rule in density matrix formulation gives

p(0) = p(1) = (1/2)[1 + |<z|w>|^2]

p(0) + p(1) = 1 + |<z|w>|^2 > 1

the entanglement signal at Alice's receiver is |<z|w>|^2
violating conservation of Born's rule for probability - because the observable is not hermitian and actually a closer examination shows a non-unitary time evolution. This is a larger theory that reduces to orthodox quantum theory in the appropriate limit.

note

http://en.wikipedia.org/wiki/Coherent_states

Now, we can squirm out of this by a-priori ad-hoc forcing of the non-universal normalization

|A,B>' = [1 + |<z|w>|^2]^-1/2|A,B>

giving

p'(0) = p'(1) = 1/2 with no signaling
Note, that Bob does not need to use that normalization at all because of Alice's <0|1> = 0.

That's why I use "non-universal" above.

However, it's not clear the Nature works this way without more testing.

On Jun 1, 2013, at 1:04 PM, Ghirardi Giancarlo <This email address is being protected from spambots. You need JavaScript enabled to view it.> wrote:

Il giorno 01/giu/2013, alle ore 18:38, JACK SARFATTI <This email address is being protected from spambots. You need JavaScript enabled to view it.> ha scritto:

Ghirardi: *I do not agree at all on this. The actual situation is that there has never been a clear cut indication that in Kalamidas serf-up something (probabilities, outcomes or whatever you want) actually changes something at left as a consequence of preparing one or the other state at right, so that it can be used to send faster than light signals. It is his duty and not ours to prove that the effect exist. I believe to have argued against its existence and I have also checked that for the most natural observables at left no difference occurs when you choose one or the other of the two initial states. The game is back to Kalamidas. And, sincerely, I am a little bit disturbed by all this enormous mess and many inadequate and unjustified statements that have been put forward during the debate. I am not keen to follow the matter any more.*

On Jun 1, 2013, at 1:54 PM, Suda Martin <This email address is being protected from spambots. You need JavaScript enabled to view it.> wrote:

Dear all,

thanks to everybody for emails, papers, contributions to discussion and comments. I enjoyed very much the highly interesting dialogues. I can fully agree to the arguments of CG and GG, of course.

Only a comment with respect to the question of the approximation:

As regards the approximation done in the calculation of DK, I would like to point out again - and I sent a pdf called Interf_BS_50_50_Suda.pdf two days ago - that because of such an approach the normalization of the output wave function behind the 50/50 BS has been changed to (1+2|alpha|^2+|alpha|^4), see Eq.(7), instead of being exactly 1. The probabilities for the potential "interference part" (see Eq.(6)) are (|p_10|^2+|p_01|^2)/4=2|alpha|^2 and the other parts give all together 2(|q_10|^2+|q_01|^2)/4=1+|alpha|^4. One keeps therefore precisely the modified normalization of Eq.(7).
One can clearly see that the "interference part" and the other parts are outcomes from an incorrect normalization.

Nice regards,

Martin

Begin forwarded message:

From: CHRISTOPHER GERRY <This email address is being protected from spambots. You need JavaScript enabled to view it.>

Subject: Re: The Kalamidas affair

Date: June 1, 2013 9:46:37 AM PDT

To: nick herbert <This email address is being protected from spambots. You need JavaScript enabled to view it.>

Cc: Ghirardi Giancarlo <This email address is being protected from spambots. You need JavaScript enabled to view it.>, Demetrios Kalamidas <This email address is being protected from spambots. You need JavaScript enabled to view it.>, John Howell <This email address is being protected from spambots. You need JavaScript enabled to view it.>, Suda Martin <This email address is being protected from spambots. You need JavaScript enabled to view it.>, Ruth Kastner <This email address is being protected from spambots. You need JavaScript enabled to view it.>, JACK SARFATTI <This email address is being protected from spambots. You need JavaScript enabled to view it.>, "Romano This email address is being protected from spambots. You need JavaScript enabled to view it. [MATH]" <This email address is being protected from spambots. You need JavaScript enabled to view it.>

Nick and everyone,

The specific failings of the Kalamidas proposal have, in fact, been pointed out in the papers you mentioned and elsewhere. I don't understand why anyone continues to say otherwise. To say that they have not been addressed does not make it so, and comes off merely an act of denial. This has been an interesting episode, but I think it's time to stop beating a dead horse. Chris

On Jun 1, 2013, at 9:13 AM, nick herbert <This email address is being protected from spambots. You need JavaScript enabled to view it.> wrote:

Kalamidas fans--

NH: I believe that everyone is in agreement that general considerations prove that the Kalamidas proposal must fail.

JS: Yes

In both Ghirardi's and Gerry's papers, they emphasize these general considerations and decline to engage in the specifics of Kalamidas's calculations. Whether one wishes to engage the specifics or not is a matter of taste. But Kalamidas is asking us to engage in specifics. As he puts it: Since you know that I am wrong, it should be "easy pickins" to

point out exactly where I am mistaken.

Gerry comes closest to meeting Kalamidas's challenge to move out of the safety of generalities and deal with specifics.

In the conclusion of Gerry's paper he states "Clearly, if the exact calculation shows no interference, but the approximate calculation does, there is something wrong with the approximate calculation. Looking at Eq 6, one notes that while some terms to order rA have been kept in going from 6a to 6c, the terms labeled "vanishing" in Eq 6b are also of this order and have been discarded. Thus the approximate calculation in {1} is inconsistent and wrong."

Gerry engages in specifics. He is meeting Kalamidas on his own terms. But he neglects to specify exactly which terms of order rA Kalamidas has mistakenly labeled as "vanishing". When Gerry displays these wrongly-neglected terms (perhaps in an informal note), he would have definitively "slain the beast in his own lair" and we can all get on with the non-Kalamidas aspects of our lives.

JS: Agreed, thanks Nick :-)

Nick

PS: There is still the fascinating Martin Suda Paradox which was discovered in the context of the Kalamidas refutation, but that is a separate issue altogether.

JS: What is that Nick? Please give details.

Begin forwarded message:

From: JACK SARFATTI <This email address is being protected from spambots. You need JavaScript enabled to view it.>

Subject: [ExoticPhysics] Fwd: The Kalamidas affair

Date: June 1, 2013 7:45:42 AM PDT

To: Exotic Physics <This email address is being protected from spambots. You need JavaScript enabled to view it.>

Reply-To: Jack Sarfatti's Workshop in Advanced Physics <This email address is being protected from spambots. You need JavaScript enabled to view it.>

Sent from my iPad

Subject: Re: The Kalamidas affair

yes I agree with this

any attempt at signaling within axioms of orthodox quantum theory will fail e.g. Adrian Kent's papers

however, antony valentini, myself and others (Stapp, Weinberg, Josephson) have all independently proposed several extensions giving a more general non-orthodox post quantum theory containing orthodox quantum theory as a limiting case. In particular, the non-hermitian boson destruction operator is a macroscopic observable with Glauber coherent eigenstates that are non-orthogonal distinguishable violating orthodox quantum theory. Furthermore, they obey a non-unitary dynamics given by the c-number landau-ginzburg equation for spontaneous broken symmetry ground/vacuum state emergent local order parameters. These order parameters entangle with others and also with orthodox qubits, so we have a new larger theory here analogous to general relativity in relation to special relativity.

Furthermore, there is no violation with the group structure of relativity because intervals are frame invariant and what matters is the interval between actual irreversible detections. What is violated is the retarded casuality axiom appended to relativity that is adhoc like Euclid's fifth axiom. Again the analogy to non-Euclidean geometry is appropriate.

Sent from my iPad

On Jun 1, 2013, at 6:40 AM, CHRISTOPHER GERRY <This email address is being protected from spambots. You need JavaScript enabled to view it.> wrote:

Everyone,

I'm in total agreement with Prof. Ghirardi's assessment. The beam splitter transformations are not the essential point here, as even if the are done correctly, the claimed effect goes away. We addressed the beam splitter issue in our comment to demonstrate that sloppy calculations in general are contained in the Kalamidas paper. We then assumed that the one case of his t and r of parameters that would satisfy the reciprocity relations actually held, thus ensuring that his transformations did not violate unitarity (for that one case!) and from there showed via an exact calculation that the effect disappears. As I said, it will disappear even with totally correct, unitary beam splitter transformations, just as stated by Prof. Ghirardi. Chris

Christopher C. Gerry

Professor of Physics

Lehman College

The City University of New York

718-960-8444

This email address is being protected from spambots. You need JavaScript enabled to view it.

---- Original message ----

Date: Sat, 1 Jun 2013 14:57:07 +0200

From: Ghirardi Giancarlo <This email address is being protected from spambots. You need JavaScript enabled to view it.> Subject: The Kalamidas affair To: CHRISTOPHER GERRY <This email address is being protected from spambots. You need JavaScript enabled to view it.>, Demetrios Kalamidas <This email address is being protected from spambots. You need JavaScript enabled to view it.>, John Howell <This email address is being protected from spambots. You need JavaScript enabled to view it.>, nick herbert <This email address is being protected from spambots. You need JavaScript enabled to view it.>, Suda Martin <This email address is being protected from spambots. You need JavaScript enabled to view it.>, Ruth Kastner <This email address is being protected from spambots. You need JavaScript enabled to view it.>, JACK SARFATTI <This email address is being protected from spambots. You need JavaScript enabled to view it.>, "Romano This email address is being protected from spambots. You need JavaScript enabled to view it. [MATH]" <This email address is being protected from spambots. You need JavaScript enabled to view it.>

Dear all,

attached herewith you will find a letter (even though it looks like a paper for technical reasons) that I have decided to forward to you to make clear the conceptual status of the situation. I hope of having been clear and I wait for comments.

With my best regards

GianCarlo

________________

remarks.pdf (83k bytes)

________________

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Written by Jack Sarfatti

Published on Saturday, 01 June 2013 09:11

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