Quantum Foam: Could It Be Used for Subspace Communication?

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Discussion Overview

The discussion revolves around the concept of quantum foam and its potential use for subspace communication, drawing parallels to science fiction scenarios, particularly those depicted in Star Trek. Participants explore theoretical implications, practical applications, and the nature of quantum foam in relation to communication and wormholes.

Discussion Character

  • Exploratory
  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • Some participants propose that quantum foam could serve as a medium for communication, akin to subspace in science fiction.
  • Others argue that quantum foam refers to a conceptual framework of space, suggesting that various existing methods, like radio waves, already utilize this framework for communication.
  • A participant questions the feasibility of using tiny wormholes within quantum foam to transmit data, akin to science fiction scenarios, and whether these wormholes could be expanded for larger objects.
  • Another participant raises the point that the existence of tiny wormholes is speculative and linked to string theory.
  • One participant discusses the implications of faster-than-light (FTL) communication, noting that it could violate causality, while also suggesting that FTL travel is not strictly forbidden by relativity.
  • There is a discussion about the possibility of expanding a wormhole for communication and the challenges associated with creating stable wormholes.
  • A question is posed regarding whether quantum foam exists solely in our universe or if it extends into the Bulk, indicating a consideration of higher-dimensional theories.

Areas of Agreement / Disagreement

Participants express a range of views on the nature and implications of quantum foam and its potential applications. There is no consensus on the feasibility of using quantum foam for subspace communication or the existence of wormholes, with multiple competing ideas and uncertainties present throughout the discussion.

Contextual Notes

The discussion includes speculative elements regarding the properties of quantum foam and wormholes, with participants relying on various theoretical frameworks without reaching definitive conclusions. The implications of FTL communication and its relationship to relativity remain unresolved.

Toastus
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Could Quantum Foam be used as a type of subspace, like the kind used in Star Trek? Mainly for communication...
 
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Toastus said:
Could Quantum Foam be used as a type of subspace, like the kind used in Star Trek? Mainly for communication...

Sure, why not, unless you have a better definition of subspace.
 
I meant in real life, not in a story.
 
I think what friend means is that "quantum foam" just refers to a certain conception of the fabric of space. There are various ways to transmit signals across the fabric of space. For example, a radio does this. So do sound waves. So technically we already use quantum foam as a medium for communication, in real life, all the time.

Your question was not very specific...
 
Sorry...

Is it possible to use the tiny wormholes in QF to transmit data streams and stuff, like in Scifi? So, you take one of the wormholes and redirect it far away to where you want it to go, and send what you want to send through it? And, would it be possible to expand one of these wormholes to the size of a ship, allowing passage to, far away places?
 
Toastus said:
Sorry...

Is it possible to use the tiny wormholes in QF to transmit data streams and stuff, like in Scifi? So, you take one of the wormholes and redirect it far away to where you want it to go, and send what you want to send through it? And, would it be possible to expand one of these wormholes to the size of a ship, allowing passage to, far away places?

Actually I have that same question. Any answers?
 
QF predicts tiny wormholes?
I thought this is a speculation of string theory, is it not?
 
loop quantum gravity said:
QF predicts tiny wormholes?
I thought this is a speculation of string theory, is it not?

not if your michio kaku promoting the latest book
 
FTL communication violates causality in the same manner as FTL travel. They are merely horses of a different color. Relativity, like politics, is local. FTL travel is not forbidden by relativity. The only thing forbidden is returning to your original light cone. You can travel [or communicate] from here to the andromeda galaxy in the blink of an eye [albeit it requires an obscene amount of energy]. And the andromeda galaxy will age a few million years in the process. You can also return here to report your findings - and discover Earth has aged ~ six million years since you left.
 
  • #10
Yes, but expanding a wormhole using your "magical awesomeness" and sending information through isn't FTL in its local space. Everywhere else it is. The problems of opening a stable wormhole to the desired location aside, wouldn't that work?

And, does quantum foam exist only in this universe, or can it also be in the Bulk?
 
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