If decoherence matters in 2 different observables

In summary, the conversation discusses the concept of decoherence and its relationship with multiple observables. It is mentioned that there is no special significance to having multiple observables and that decoherence occurs all the time in the world. The question is raised about which observable basis will experience collapse in the case of decoherence in various observables, to which the response is that collapses are not necessary. However, if one prefers interpretations with collapses, it is stated that the observables must be commuting in order for both to experience collapse.
  • #1
StarsRuler
83
0
¿Can´t matter that decoherence matters for 2 distinct observables simultaneously ¿ Maybe the measurement apparatus must been defined clasically in this case
 
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  • #2
There is nothing special about multiple observables. You can even construct observables which directly depend on other observables, so decoherence in one has to imply decoherence in the other as well.

You have decoherence everywhere, all the time, happening in the world.
 
  • #3
But in the case of decohere in various observables, not being one function of other/s, in what observable basis collapse??
 
  • #4
You do not need collapses.
If you prefer interpretations with collapses: in both. Those observables have to be commuting to get this anyway.
 

1. What is decoherence and how does it affect observables?

Decoherence refers to the process by which a quantum system becomes entangled with its environment, causing it to lose its purity and coherence. This can affect observables by making them appear more classical and reducing the ability to observe certain quantum effects.

2. How does decoherence contribute to the measurement problem in quantum mechanics?

Decoherence plays a role in the measurement problem by providing a mechanism for the collapse of the wavefunction. As a quantum system interacts with its environment, it becomes entangled and appears to "choose" a particular state, leading to the appearance of a collapse.

3. Can decoherence be controlled or prevented?

Decoherence is a natural phenomenon that cannot be completely prevented, but it can be controlled to some extent through careful design and isolation of quantum systems. Techniques such as quantum error correction can also help mitigate the effects of decoherence.

4. Are there any observable effects of decoherence?

Yes, there are observable effects of decoherence such as the loss of quantum interference and the appearance of classical behavior in certain systems. These effects can be seen in experiments and are an important consideration in the development of quantum technologies.

5. Are there any practical applications of understanding decoherence in different observables?

Understanding decoherence in different observables is crucial for the development of quantum technologies such as quantum computing, quantum communication, and quantum sensing. It also has implications for our understanding of the nature of reality and the relationship between the quantum and classical worlds.

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