Another explanation of that poor, poor cat

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Discussion Overview

The discussion revolves around the implications of Heisenberg's Uncertainty Principle and the Schrödinger's Cat thought experiment, exploring concepts of quantum mechanics, decoherence, and the nature of observation in quantum systems. Participants engage in theoretical reasoning and challenge each other's interpretations, particularly regarding the role of gravity and the nature of wavefunction collapse.

Discussion Character

  • Exploratory
  • Debate/contested
  • Conceptual clarification
  • Technical explanation

Main Points Raised

  • Some participants draw parallels between the behavior of couples and the collapse of a wavefunction in quantum mechanics, suggesting that observation affects the state of a system.
  • Others introduce the concept of decoherence, arguing that large systems cannot exhibit quantum behavior due to interactions with their environment, which leads to the collapse of the wavefunction.
  • A participant explains that quantum systems are delicate and can collapse into a stationary state upon interaction with the outside world, emphasizing the challenge of isolating macroscopic objects to observe quantum properties.
  • There is a discussion about whether gravitational interactions could imply that quantum systems are always being "observed," raising questions about the nature of measurement and observation in quantum mechanics.
  • Some participants speculate on the role of gravity in quantum mechanics, referencing Roger Penrose's ideas about quantum gravity and wavefunction collapse, while noting that gravity is not included in the standard model.
  • Concerns are raised about the implications of gravity on quantum phenomena, questioning why quantum effects still occur at small scales if gravity influences all systems.
  • Participants reflect on the purpose of the Schrödinger's Cat thought experiment, suggesting it illustrates the fundamental uncertainty in quantum mechanics rather than providing a definitive conclusion about the cat's state.
  • One participant asserts that the cat is either dead or alive, framing the uncertainty as a measurement problem rather than a fundamental property of reality.

Areas of Agreement / Disagreement

Participants express a range of views on the implications of gravity in quantum mechanics and the interpretation of the Schrödinger's Cat thought experiment. There is no consensus on whether gravity plays a significant role in wavefunction collapse or on the nature of quantum observation, indicating ongoing debate and uncertainty.

Contextual Notes

Participants acknowledge limitations in understanding the interaction between gravity and quantum systems, as well as the challenges in isolating systems to observe quantum behavior. The discussion reflects a variety of interpretations and speculative ideas without reaching definitive conclusions.

Better than the original explanation?

  • YES! I love it!

    Votes: 1 25.0%
  • NO WAY!

    Votes: 3 75.0%

  • Total voters
    4
  • #31
Jammieg, the Schroedinger's cat experiment has never been perfomed as due to decoherence, you could not expect to get anything other than a classical result. It is a thought experiment and is one orginally cretaed to attamept to show the absurdity of the Copenhagen interpretation.

Qantum Entanglemnt was predicted before it was tested and infact Schroedinger's cat would represent a many particle entangled system, which is why it decoheres.

For the third time, the idea that the cat is in a suppostion of states in genereally rejected, which poses the question: why don't macroscopic objects exhibit quantum behaviour? with probably the best answer being: decoherence.
 
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  • #32
Of course we can't measure the uncertainty principle the idea is that the different possibilities exist in separate universes or exsist at the same time the second you open that box the cat becomes either dead or alive. However, there was an experiment done with light put through a small hole and how the shadows and the illuminated parts blended I don't quite remember the particulars. Anyway it shows the effect of the uncertainty principle in real life
 
  • #33
Originally posted by JKLM
Of course we can't measure the uncertainty principle the idea is that the different possibilities exist in separate universes or exsist at the same time the second you open that box the cat becomes either dead or alive. However, there was an experiment done with light put through a small hole and how the shadows and the illuminated parts blended I don't quite remember the particulars. Anyway it shows the effect of the uncertainty principle in real life

We can measure the uncertainty principle quite easily as a matter of factas it places a limit on our abilty to predict the outcome of experiments and this limit is easily measured. The idea of mutiple universe is only one intepretation of QM and not the convential one either.

You mean the two-slit diffraction experiment, which in the way you've described it, doesn't indicate uncertainty at all as you've described in a way which can be fully explained by classical theories.
 

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