controlling wave-function collapse ?

[Widdekind]

In quantum entanglement (QE) experiments, two or more simple quantum systems (fundamental particles, e.g. photons & electrons, q₁, q₂) are "mingled", into a single composite quantum system (Q), which exists only in an insubstantial "quantum state" of "incorporeal ghostly ambiguity":

 

Q

~

q

₁

(left)

q

₂

(right) +

q

₁

(right)

q

₂

(left)

When the composite system undergoes measurement (M), imposed upon it by an external agent (human scientist), the composite system randomly "decides" which substantial "classical state", of "corporeal certainty", to "collapse" into:

 

Q

---->

q

₁

(left)

q

₂

(right)

("the first photon went left, the second went right")

or

---->

q

₁

(right)

q

₂

(left)

("the first photon went right, the second went left")

That "decision" is made randomly, presumably beyond the ability of the external agent to determine. However, imagine replacing one of the simple quantum systems (q) with a complex quantum system: a quantum computer (C) capable of executing decisions, based upon information. The quantum computer could be fabricated (hardware); loaded with appropriate programs (software); entangled with other particles (q) into an "incorporeal ghostly ambiguous" composite, quantum state. The state of the computer -- capable of executing decisions -- would depend upon which decision it executed:

 

Q

~

q

(left)

C

(

q

went left) +

q

(right)

C

(

q

went right)

If the computer could continue to process information in the non-classical, quantum state; then the computer could continue to execute decisions in the non-classical, quantum state. And, any decisions it made, as an internal agent, would determine the fate of the composite system, internally triggering "collapse", into the classical state decided upon by the computer:

 

Q

---->

q

(left)

C

(

q

went left)

or

---->

q

(right)

C

(

q

went right)

If so, then perhaps the quantum "collapse" process could be controlled, from "inside" the non-classical, quantum state, by suitable quantum computer systems ? If complex, information processing, decision executing computers could be entered into the non-classical, quantum state; then perhaps they would become "internal observers", capable of controlling the "collapse" process, of their own entangled system ?