Quantum entanglement and the Schrödinger experiment

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Discussion Overview

The discussion revolves around the interpretation of quantum mechanics through analogies involving a coin flip and Schrödinger's cat thought experiment. Participants explore the implications of observation on the state of a system, particularly in relation to superposition and entanglement.

Discussion Character

  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • One participant suggests that a coin in the air is in a state of neither heads nor tails until it lands, at which point it assumes a definite state.
  • Another participant agrees with the idea that once the coin lands, its state can be definitively stated as heads or tails, but questions the analogy with Schrödinger's cat, asserting that the cat cannot be in a superposition of states in the same way.
  • Some participants argue that the coin and the cat cannot be directly compared, emphasizing that the cat's fate is entangled with a microscopic system, which allows for superposition.
  • One participant expresses a belief that the Schrödinger's cat thought experiment has been overly simplified and misrepresented, suggesting it is a metaphor rather than a straightforward quantum mechanical scenario.

Areas of Agreement / Disagreement

Participants express differing views on the analogy between the coin flip and Schrödinger's cat, with some asserting that the two scenarios are fundamentally different. There is no consensus on how to interpret the implications of observation in quantum mechanics.

Contextual Notes

Participants highlight the limitations of comparing macroscopic objects like a coin and a cat to quantum systems, indicating that the analogy may not hold under rigorous quantum mechanical principles.

Seyara
Ok so just tell me this, if you flip a coin with your eyes closed and it lands on your hand and then you look at the coin and it is heads… there was a time in the duration of the coin being in the air at which the coin was in a state of neither heads or tales. But only once it hits your hand it must pick one (in this case it picks heads facing up). now that you have opened your eyes and have knowledge that the coin is heads…… could you make a true statement that “the coin was heads only after the point at which it landed on my hand”

if what i'm asking does not make sense let me ask this in a more familiar scenario the Schrödinger experiment

if you open the box and the cat is dead, can you make a true statement that "the cat was dead after the point of explosion" even though it hadn't been observed at the time?
 
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Seyara said:
Ok so just tell me this, if you flip a coin with your eyes closed and it lands on your hand and then you look at the coin and it is heads… there was a time in the duration of the coin being in the air at which the coin was in a state of neither heads or tales. But only once it hits your hand it must pick one (in this case it picks heads facing up). now that you have opened your eyes and have knowledge that the coin is heads…… could you make a true statement that “the coin was heads only after the point at which it landed on my hand”
Yes. The coin in the air is spinning and its orientation is always well defined. When it lands its orientation is fixed.
Seyara said:
if what i'm asking does not make sense let me ask this in a more familiar scenario the Schrödinger experiment

if you open the box and the cat is dead, can you make a true statement that "the cat was dead after the point of explosion" even though it hadn't been observed at the time?
Likewise, the cat cannot physically be neither alive nor dead. When you look all the evidence points to the cat having been dead for some time.

The question is how we resolve the dilemma if the cat's fate is entangled with a micoscopic system, which can be in a superposition of states.
 
Seyara said:
could you make a true statement that “the coin was heads only after the point at which it landed on my hand”
Hi, @Seyara, welcome. No way: the coin has two sides. Here, everywhere. No comparison with the cat. Probability has nothing in common with quantum mechanics. Nevertheless, regard previous post. Mine is just an intuitive, naive, etc, opinion.
 
mcastillo356 said:
Hi, @Seyara, welcome. No way: the coin has two sides. Here, everywhere. No comparison with the cat.
The cat is not a simple quantum mechanical system. That is the point. The coin and the cat have that in common. They cannot be directly described by QM. The Schrödinger's cat thought experiment combines a simple QM system with an object, the cat, that we know is not described in the same simple way.

The solution to the question is not to treat the cat as though it were a single atom and assume that elementary QM applies.
 
PeroK said:
The solution to the question is not to treat the cat as though it were a single atom and assume that elementary QM applies.
Thanks. I've always thought that this cat is been amplified, decontextualized, trivialized, all the words ending in a disturbing "ed" :frown:. Actually, the cat is just a fingered metaphor
 

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