Quantum Causal Relations

[Esote]

A new framework for quantum mechanics which does not assume a pre-existing global time. It demonstrates the possibility for two agents to perform a communication task in which it is impossible to tell with certainty who influences whom:
http://medienportal.univie.ac.at/presse/aktuelle-pressemeldungen/detailansicht/artikel/quantum-causal-relations-a-causes-b-causes-a/

One of the most deeply rooted concepts in science and in our everyday life is causality; the idea that events in the present are caused by events in the past and, in turn, act as causes for what happens in the future. If an event A is a cause of an effect B, then B cannot be a cause of A. Now theoretical physicists from the University of Vienna and the Université Libre de Bruxelles have shown that in quantum mechanics it is possible to conceive situations in which a single event can be both, a cause and an effect of another one.

Although it is still not known if such situations can be actually found in nature, the sheer possibility that they could exist may have far-reaching implications for the foundations of quantum mechanics, quantum gravity and quantum computing...

 

[Buddy]

Thanks for that, eoste. I enjoy keeping current in this field of study.

 

[bngenoh]

"The real challenge is finding out where in nature we should look for superpositions of causal orders"

Indeed that is the challenge, but I think that to even notice it, requires a revolutionary revamping of our psychic apparatus to use a phrase from Ouspensky's Tertium Organum.

 

[Esote]

Thanks for that, eoste. I enjoy keeping current in this field of study.

You're welcome Buddy

"The real challenge is finding out where in nature we should look for superpositions of causal orders"

Indeed that is the challenge, but I think that to even notice it, requires a revolutionary revamping of our psychic apparatus to use a phrase from Ouspensky's Tertium Organum.

It does require a real evolution of our thought process.
Some scientists are working very seriously toward this kind of research, while a few are taking advantage of ignorance to harvest power and money from it, as usual (like Garnier-Mallet in France for example, with his "Undoubling of Time" theory).
But anyway we need a real revolution in the human psyche to meet the challenge...

 

[Buddy]

"The real challenge is finding out where in nature we should look for superpositions of causal orders"

Indeed that is the challenge, but I think that to even notice it, requires a revolutionary revamping of our psychic apparatus to use a phrase from Ouspensky's Tertium Organum.

It does require a real evolution of our thought process.
Some scientists are working very seriously toward this kind of research, while a few are taking advantage of ignorance to harvest power and money from it, as usual (like Garnier-Mallet in France for example, with his "Undoubling of Time" theory).
But anyway we need a real revolution in the human psyche to meet the challenge...

Yes, thank you, thank you, thank you both for saying so! :) The old logic and thought structures need serious attention.

Here is just one supporting opinion of this idea from:

Exogenous Quantum Logic
P. Mateus and A. Sernadas
CLC, Department of Mathematics, IST
April 27, 2004

Most of the work on quantum logic (since the seminal paper [4]) has continued to adopt the lattice of closed subspaces of a Hilbert space as the basis for its semantics [11, 8]. Here we take a quite different approach, what we call the exogenous approach.

The key idea is to keep the models of the classical logic (say propositional logic) as they are, to produce models for the envisaged quantum logic as superpositions of classical models, and, finally, to design a suitable language for constraining such superpositions.
Source: _ftp://www.cle.unicamp.br/pub/e-prints/comblog04/asernadas.pdf

 

[Esote]

Most of the work on quantum logic (since the seminal paper [4]) has continued to adopt the lattice of closed subspaces of a Hilbert space as the basis for its semantics [11, 8]. Here we take a quite different approach, what we call the exogenous approach.

The key idea is to keep the models of the classical logic (say propositional logic) as they are, to produce models for the envisaged quantum logic as superpositions of classical models, and, finally, to design a suitable language for constraining such superpositions.
Source: _ftp://www.cle.unicamp.br/pub/e-prints/comblog04/asernadas.pdf

An exogenous approach and a suitable language... Somehow like objectivity may be ? ;)

 

[celtic]

This would not be so far fetch when you consider quantum computing, considering quantum computers work in qubits. Which means they have quantum mechanical states of either 1 or 0 simultaneously. This is because the subatomic particles work in qubits and can exist in more than one state. The theory may also hold true for hyperspace or dimensions. Very interesting, thanks for the post eoste.

 

[Redrock12]

A new framework for quantum mechanics which does not assume a pre-existing global time. It demonstrates the possibility for two agents to perform a communication task in which it is impossible to tell with certainty who influences whom:
http://medienportal.univie.ac.at/presse/aktuelle-pressemeldungen/detailansicht/artikel/quantum-causal-relations-a-causes-b-causes-a/

One of the most deeply rooted concepts in science and in our everyday life is causality; the idea that events in the present are caused by events in the past and, in turn, act as causes for what happens in the future. If an event A is a cause of an effect B, then B cannot be a cause of A. Now theoretical physicists from the University of Vienna and the Université Libre de Bruxelles have shown that in quantum mechanics it is possible to conceive situations in which a single event can be both, a cause and an effect of another one.

Although it is still not known if such situations can be actually found in nature, the sheer possibility that they could exist may have far-reaching implications for the foundations of quantum mechanics, quantum gravity and quantum computing...

Intriguing topic.
Causes one to think outside of the traditional lineal space-time paradigm.

 

[Esote]

This would not be so far fetch when you consider quantum computing, considering quantum computers work in qubits. Which means they have quantum mechanical states of either 1 or 0 simultaneously. This is because the subatomic particles work in qubits and can exist in more than one state. The theory may also hold true for hyperspace or dimensions. Very interesting, thanks for the post eoste.

You are welcome, celtic, and thanks to your input

Intriguing topic.
Causes one to think outside of the traditional lineal space-time paradigm.

Thinking outside the box, that's what we are here for, isn't it ?.. ;)